Open Source Ecology - User contributions [en]

Soil Pulverizer Design Rationale, Product Ecology

2013-08-22T05:27:29Z

Scott Baker: /* Product Ecology */

=Design Rationale=

The basic design for the Soil Pulverizer is to provide soil digging, pulverizing, loading into the tractor bucket, and dumping into the CEB Press in one step. Otherwise, one must use a tractor to dig, followed by pulverizing with a stationary pulverizer, and followed by a conveyor belt into the machine.

=Product Ecology=

The Soil Pulverizer is a tool attached to the [[Civilization_Starter_Kit_DVD_v0.01#Tractor|LifeTrac]] that creates and collects loose soil. It satisfies [[OSE_Specifications#GVCS_Specifications.2FCore_Values|many of the OSE Core Values.]]

[http://youtu.be/Sv5u0uRKJes Video] of the Soil Pulverizer in action.

;Open Source : The design is simple and freely available. Additionally, the manufacturing process is fully documented.

;Distributive Economics : The Soil Pulverizer is a bit more specialized than some of the other machines. With the full economic pros/cons documented you can decide for yourself if it's worth building.

;Low Cost : The GVCS Soil Pulverizer design is significantly cheaper than its commercial equivalents.

;User Friendly : It's easy to make, easy to use, and easy to modify.

;Do-It-Yourself : The tools required to make the Soil Pulverizer can be learned in an afternoon, or you can use whatever tools you are already familiar with.

;Lifetime Design : The Soil Pulverizer is over-built so that, with a minimum of care, it will last forever.

;Substitutability : The Soil Pulverizer is just one of many tools that can be attached to the [[Civilization_Starter_Kit_DVD_v0.01#Tractor|LifeTrac]] quickly and easily.

;Complete Economy : Sometimes the local dirt is just not pulverized enough on its own. The Soil Pulverizer ensures you process enough dirt to keep everything else going.

;Division of Labor : One person can break up the soil while another person uses it for something. Together they get more done then they would on their own.

;Realistic Immediacy : The bricks that the Soil Pulverizer helped produce are currently providing shelter for real people.

Soil Pulverizer Design Rationale, Product Ecology

2013-08-22T05:20:57Z

Scott Baker: /* Design Rationale */

=Design Rationale=

The basic design for the Soil Pulverizer is to provide soil digging, pulverizing, loading into the tractor bucket, and dumping into the CEB Press in one step. Otherwise, one must use a tractor to dig, followed by pulverizing with a stationary pulverizer, and followed by a conveyor belt into the machine.

=Product Ecology=

The Soil Pulverizer is a tool attached to the LifeTrac that creates and collects loose soil. It satisfies [[OSE_Specifications#GVCS_Specifications.2FCore_Values|many of the OSE Core Values.]]

[http://youtu.be/Sv5u0uRKJes Video] of the Soil Pulverizer in action.

1. '''Open Source.''' The design is simple and freely available. Additionally, the manufacturing process is fully documented.

2. '''Distributive Economics.''' The Soil Pulverizer is a bit more specialized than some of the other machines. With the full economic pros/cons documented you can decide for yourself if it's worth building.

3. '''Low Cost.''' The GVCS Soil Pulverizer design is significantly cheaper than its commercial equivalents.

4. '''User Friendly.''' It's easy to make, easy to use, and easy to modify.

5. '''Do-It-Yourself.''' The tools required to make the Soil Pulverizer can be learned in an afternoon, or you can use whatever tools you are already familiar with.

6. '''Lifetime Design.''' The Soil Pulverizer is over-built so that, with a minimum of care, it will last forever.

7. '''Substitutability.''' The Soil Pulverizer is just one of many tools that can be attached to the LifeTrac quickly and easily.

8. '''Complete Economy.''' Sometimes the local dirt is just not pulverized enough on its own. The Soil Pulverizer ensures you process enough dirt to keep everything else going.

9. '''Division of Labor.''' One person can break up the soil while another person uses it for something. Together they get more done then they would on their own.

10. '''Realistic Immediacy.''' The bricks that the Soil Pulverizer helped produce are currently providing shelter for real people.

Tractor Design Rationale, Product Ecology

2013-08-22T05:15:46Z

Scott Baker: /* Design Rationale */

=Design Rationale=

Basic discussion of design rationale is [http://blog.opensourceecology.org/2010/07/open-source-tractor-update/ here].

;Definition : LifeTrac is a low-cost, multipurpose open source tractor. LifeTrac is a versatile, 4-wheel drive, full-sized, hydraulically-driven, skid-steering tractor of 18-75 hp with optional steel tracks. LifeTrac is intended to be a minimalist but high-performance, lifetime design, design-for-disassembly workhorse and power unit of any land stewardship operation. It features easy serviceability by the user. Its modular nature allows for quick attachment of implements; interchangeability/stackability of multiple power units (Power Cubes) for adapting power level to the task at hand; quick attachment of all hydraulic components via quick-coupling hoses; including quick interchangeability of hydraulic motors for use in other applications. LifeTrac can be fitted with up to two sets of loader arms. LifeTrac is intended to be used with modern steam engine Power Cube modules for fuel flexibility, such that a locally-harvested, pelletized biomass crop (such as hay) may be used for fuel. Regarding safety features, LifeTrac replaced the traditional power take-off (PTO) shaft for driving other implements with a detachable hydraulic motor for the same purpose, where this motor may be mounted on the tractor, on the implement, or wherever it is required.

;Problem Statement : Industrial tractors are being designed increasingly for planned obsolescence with 10 year lifespans, and the user typically cannot service their own tractor due to complexity of design. Power transmission and engine systems are the dominant failure modes of tractors. Fuel costs are a significant expense of operating a tractor. Capital costs of purchasing tractors typically place their users in debt.

;Solution : LifeTrac is designed to be the people's tractor. The user is able to service, modify, and produce fuel for the tractor. Gear transmission is replaced with a hydraulic drive train, where quick-connect, flexible hoses are the means of transferring power. Lifetime design (bolt-together construction, modularity) with general purpose parts allows the tractor to be passed down from generation to generation, before its life-cycle is completed as feedstock for the induction furnace. The absolute simplest design facilitates creation of small-scale enterprise for manufacturing these tractors in as little as 3 days of time using a RepLab1 facility. This allows communities to be entirely self-sufficient in their mechanical power infrastructures, while reducing lifetime costs of tractors by a factor of 10 or more.

;Development Status and Needs : We have completed Prototype I, II and III; we are currently on Prototype IV. Prototype I (ref) was an articulated version of the tractor without roll cage, and Prototype II (ref) was an enclosed version with tracks and skid steering. Prototype II has demonstrated quick-attachment and stackability of power units (ref), as well as interchangeability of wheel motors and control valves via quick-couplers for repurposing in other applications. Prototype III was a shortened version of Prototype II with only one set of loader arms; it also featured CNC Torch Table assist in its fabrication. Prototype IV (Current as of Dec. 2011) introduces [[Quick Connect Wheels]]. Moreover, minor redesigns (thicker wheel shafts and bearings - 2.5" instead of 1-7/8") of LifeTrac lend themselves to adaptation as a tracked bulldozer via addition of chain gear reduction to the direct-coupled wheel drive.

LifeTrac satisfies many of the [http://opensourceecology.org/wiki/OSE_Specifications#GVCS_Specifications.2FCore_Values OSE Core Values]

;Open Source : The LifeTrac was designed from the ground up with the intention of making freely available not only the design, but also the education necessary to understand, use, and improve the design.

;Low Cost : As compared to its commercial equivalent, the LifeTrac is 1/5 the cost to acquire. There are even more dramatic reductions in the cost to own.

;Do-It-Yourself : Most of the components and sub-assemblies are held together with bolts. If you've got a wrench you've got a tractor.

;Closed-Loop Manufacturing : Because the materials the LifeTrac is made of require so little machining, they can be produced by future GVCS machines. No need for exotic materials or fancy injection molding.

;Industrial Efficiency : The LifeTrac's performance is designed to be comparable to industry standards, and we are approaching that point quickly.

;Lifetime Design : Unlike what is available commercially, the LifeTrac is designed to function indefinitely. Design for obsolescence is avoided, as maximum service to the user is part of the design.

;Robustness : It's ugly, but it works.

;Technological Recursion : LifeTrac is part of technological recursion at the deepest level, in that it is responsible in part for extracting raw resources from which all things are made.

;Local Resources : What good are the resources under your feet if you can't use them? The LifeTrac opens up new avenues for self-sourcing.

;Replicability : With full documentation on how to source the materials, build the tractor, and use it in the field, the LifeTrac eradicates barriers to entry.

=Product Ecology=
{{Product Ecology

|From=
*{{Power Cube}}
*{{Hydraulic Motor}}
*{{Induction Furnace}} Steel

|Uses=
*{{Power Cube}}

|Creates=

|Enables=
*{{CEB Press}}
*{{Rototiller}}
*{{Backhoe}}
*{{Universal Rotor}}
*{{Well Driller}}
*{{Trencher}}
*{{Baler}}
*{{Seeder}}
*{{Spader}}
*{{Rototiller}}
*{{Hay Rake}}
*{{Hay Cutter}}

}}

Tractor Design Rationale, Product Ecology

2013-08-22T05:13:37Z

Scott Baker: /* Design Rationale */

=Design Rationale=

Basic discussion of design rationale is [http://blog.opensourceecology.org/2010/07/open-source-tractor-update/ here].

;Definition : LifeTrac is a low-cost, multipurpose open source tractor. LifeTrac is a versatile, 4-wheel drive, full-sized, hydraulically-driven, skid-steering tractor of 18-75 hp with optional steel tracks. LifeTrac is intended to be a minimalist but high-performance, lifetime design, design-for-disassembly workhorse and power unit of any land stewardship operation. It features easy serviceability by the user. Its modular nature allows for quick attachment of implements; interchangeability/stackability of multiple power units (Power Cubes) for adapting power level to the task at hand; quick attachment of all hydraulic components via quick-coupling hoses; including quick interchangeability of hydraulic motors for use in other applications. LifeTrac can be fitted with up to two sets of loader arms. LifeTrac is intended to be used with modern steam engine Power Cube modules for fuel flexibility, such that a locally-harvested, pelletized biomass crop (such as hay) may be used for fuel. Regarding safety features, LifeTrac replaced the traditional power take-off (PTO) shaft for driving other implements with a detachable hydraulic motor for the same purpose, where this motor may be mounted on the tractor, on the implement, or wherever it is required.

;Problem Statement : Industrial tractors are being designed increasingly for planned obsolescence with 10 year lifespans, and the user typically cannot service their own tractor due to complexity of design. Power transmission and engine systems are the dominant failure modes of tractors. Fuel costs are a significant expense of operating a tractor. Capital costs of purchasing tractors typically place their users in debt.

;Solution : LifeTrac is designed to be the people's tractor. The user is able to service, modify, and produce fuel for the tractor. Gear transmission is replaced with a hydraulic drive train, where quick-connect, flexible hoses are the means of transferring power. Lifetime design (bolt-together construction, modularity) with general purpose parts allows the tractor to be passed down from generation to generation, before its life-cycle is completed as feedstock for the induction furnace. The absolute simplest design facilitates creation of small-scale enterprise for manufacturing these tractors in as little as 3 days of time using a RepLab1 facility. This allows communities to be entirely self-sufficient in their mechanical power infrastructures, while reducing lifetime costs of tractors by a factor of 10 or more.

;Development Status and Needs : We have completed Prototype I, II and III; we are currently on Prototype IV. Prototype I (ref) was an articulated version of the tractor without roll cage, and Prototype II (ref) was an enclosed version with tracks and skid steering. Prototype II has demonstrated quick-attachment and stackability of power units (ref), as well as interchangeability of wheel motors and control valves via quick-couplers for repurposing in other applications. Prototype III was a shortened version of Prototype II with only one set of loader arms; it also featured CNC Torch Table assist in its fabrication. Prototype IV (Current as of Dec. 2011) introduces [[Quick Connect Wheels]]. Moreover, minor redesigns (thicker wheel shafts and bearings - 2.5" instead of 1-7/8") of LifeTrac lend themselves to adaptation as a tracked bulldozer via addition of chain gear reduction to the direct-coupled wheel drive.

LifeTrac satisfies many of the [http://opensourceecology.org/wiki/OSE_Specifications#GVCS_Specifications.2FCore_Values OSE Core Values]

#'''Open Source.''' The LifeTrac was designed from the ground up with the intention of making freely available not only the design, but also the education necessary to understand, use, and improve the design.

#'''Low Cost.''' As compared to its commercial equivalent, the LifeTrac is 1/5 the cost to acquire. There are even more dramatic reductions in the cost to own.

#'''Do-It-Yourself.''' Most of the components and sub-assemblies are held together with bolts. If you've got a wrench you've got a tractor.

#'''Closed-Loop Manufacturing.''' Because the materials the LifeTrac is made of require so little machining, they can be produced by future GVCS machines. No need for exotic materials or fancy injection molding.

#'''Industrial Efficiency.''' The LifeTrac's performance is designed to be comparable to industry standards, and we are approaching that point quickly.

#'''Lifetime Design.''' Unlike what is available commercially, the LifeTrac is designed to function indefinitely. Design for obsolescence is avoided, as maximum service to the user is part of the design.

#'''Robustness.''' It's ugly, but it works.

#'''Technological Recursion.''' LifeTrac is part of technological recursion at the deepest level, in that it is responsible in part for extracting raw resources from which all things are made.

#'''Local Resources.''' What good are the resources under your feet if you can't use them? The LifeTrac opens up new avenues for self-sourcing.

#'''Replicability.''' With full documentation on how to source the materials, build the tractor, and use it in the field, the LifeTrac eradicates barriers to entry.

=Product Ecology=
{{Product Ecology

|From=
*{{Power Cube}}
*{{Hydraulic Motor}}
*{{Induction Furnace}} Steel

|Uses=
*{{Power Cube}}

|Creates=

|Enables=
*{{CEB Press}}
*{{Rototiller}}
*{{Backhoe}}
*{{Universal Rotor}}
*{{Well Driller}}
*{{Trencher}}
*{{Baler}}
*{{Seeder}}
*{{Spader}}
*{{Rototiller}}
*{{Hay Rake}}
*{{Hay Cutter}}

}}

CEB Press Troubleshooting and Repair

2013-08-22T04:09:35Z

Scott Baker: /* Troubleshooting */

=Maintenance and Repair=
There is little maintenance that needs to be done to the Machine. This is due primarily to the absence of a power unit on the Machine. For storage, remove the hopper grate and clean soil from the Machine. Store the Machine indoors to prevent rusting. Cap the hose ends so that dirt does not get into the hoses.

If any parts become damaged structurally for any reason, assess the damage and replace the part if needed. All parts are either stock steel or off-the-shelf components. Most of the Machine features bolt-together, designed-for-disassembly, and most parts may be replaced readily. The entire machine can be taken apart in about 5 hours for study or refurbishing, and as long as the Machine is kept free from rust, it should last from generation to generation. We recommend a new paint job every 10 years, including inside the main frame. The inside of the compression chamber is the only part that may wear out in time. Replacement of the front and back u-channel pieces is approximately a 2 hour job involving the drilling of holes and minor welding; replacement of the side wear plates involves torching off the old ones and welding on replacements, which is about a 2 hour job if the Machine frame is already taken apart. Material costs for these repairs involves a total of about US$40.

=Troubleshooting=

For the machine to operate properly:
#Hydraulic power must be available from a power source
#Hydraulic power must be delivered to the actuator
#Electrical power must be available from an electrical source
#Electrical power must be delivered to the power usage points
#The logic system must be providing control logic
#Control logic must receive position feedback from sensors.

To troubleshoot the hydraulic system - see [[Hydraulic System Troubleshooting]]

To troubleshoot the electric system - see [[Electric System Troubleshooting]]

To troubleshoot the mechanical system - see [[Mechanical System Troubleshooting]]

{{Civilization_Starter_Kit_DVD}}

CEB Press Troubleshooting and Repair

2013-08-22T04:08:44Z

Scott Baker: /* Maintenance and Repair */

=Maintenance and Repair=
There is little maintenance that needs to be done to the Machine. This is due primarily to the absence of a power unit on the Machine. For storage, remove the hopper grate and clean soil from the Machine. Store the Machine indoors to prevent rusting. Cap the hose ends so that dirt does not get into the hoses.

If any parts become damaged structurally for any reason, assess the damage and replace the part if needed. All parts are either stock steel or off-the-shelf components. Most of the Machine features bolt-together, designed-for-disassembly, and most parts may be replaced readily. The entire machine can be taken apart in about 5 hours for study or refurbishing, and as long as the Machine is kept free from rust, it should last from generation to generation. We recommend a new paint job every 10 years, including inside the main frame. The inside of the compression chamber is the only part that may wear out in time. Replacement of the front and back u-channel pieces is approximately a 2 hour job involving the drilling of holes and minor welding; replacement of the side wear plates involves torching off the old ones and welding on replacements, which is about a 2 hour job if the Machine frame is already taken apart. Material costs for these repairs involves a total of about US$40.

=Troubleshooting=

For the machine to operate properly:
#Hydraulic power must be available by a power source
#Hydraulic power must be delivered to the actuator
#Electrical power must be available from an electrical source
#Electrical power must be delivered to the power usage points
#The logic system must be providing control logic
#Control logic must receive position feedback from sensors.

To troubleshoot the hydraulic system - see [[Hydraulic System Troubleshooting]]

To troubleshoot the electric system - see [[Electric System Troubleshooting]]

To troubleshoot the mechanical system - see [[Mechanical System Troubleshooting]]

{{Civilization_Starter_Kit_DVD}}

CEB Press Troubleshooting and Repair

2013-08-22T04:07:54Z

Scott Baker: /* Maintenance and Repair */

=Maintenance and Repair=
There is little maintenance that needs to be done to the Machine. This is due primarily to the absence of a power unit on the Machine. For storage, remove the hopper grate and clean soil from the Machine. Store the Machine indoors to prevent rusting. Cap the hose ends so that dirt does not get into the hoses.

If any parts become damaged structurally for any reason, assess the damage and replace the part if needed. All parts are either stock steel or off-the-shelf components. Most of the Machine features bolt-together, designed-for-disassembly, and most parts may be replaced readily. The entire machine can be taken apart in about 5 hours for study or refurbishing, and as long as the machine is kept free from rust, it should last from generation to generation. We recommend a new paint job every 10 years, including inside the main frame. The inside of the compression chamber is the only part that may wear out in time. Replacement of the front and back u-channel pieces is approximately a 2 hour job involving the drilling of holes and minor welding; replacement of the side wear plates involves torching off the old ones and welding on new ones, which is about a 2 hour job if the machine frame is already taken apart. Material costs for these repairs involves a total of about US$40.

=Troubleshooting=

For the machine to operate properly:
#Hydraulic power must be available by a power source
#Hydraulic power must be delivered to the actuator
#Electrical power must be available from an electrical source
#Electrical power must be delivered to the power usage points
#The logic system must be providing control logic
#Control logic must receive position feedback from sensors.

To troubleshoot the hydraulic system - see [[Hydraulic System Troubleshooting]]

To troubleshoot the electric system - see [[Electric System Troubleshooting]]

To troubleshoot the mechanical system - see [[Mechanical System Troubleshooting]]

{{Civilization_Starter_Kit_DVD}}

CEB Press Operation, Safety, and Maintenance

2013-08-22T04:03:38Z

Scott Baker: /* Operation and Maintenance Procedures */

=Operation, Safety, and Maintenance=

Firstly, the User must acknowledge that the Machine is a heavy piece of powered equipment, and poses inherent risks of injury or death that may result from improper usage or accidents. If all operating, safety, and maintenance procedures are followed, these risks are minimized or nonexistent.

Inherent risks for the Machine arise from several sources:

# The Machine is powered by hydraulic fluid pressure, as produced by an external power source.
# There are risks associated with moving parts.
# There are risks associated with the heavy weight of the Machine.
# There are risks associated with the electrical power delivery to the Machine electronics.
# There may be risks associated with the power unit used with the Machine.
# The Machine is typically used under a workflow involving other heavy machinery used for ancillary purposes, such as soil preparation and loading. All these risks, while insignificant under normal operating conditions, can be injurious or deadly when proper procedures are not followed.

==Hydraulic Fluid Power - General Safety Considerations==

Hydraulic fluid power is used to power the Machine. The Machine is plugged into a power source via hydraulic hoses. The hydraulic power is generated by an external power unit, wherein a gas, diesel, electric, or other engine drives a hydraulic pump - which in turn pumps hydraulic fluid at high pressure through the hydraulic circuit. Depending on the power unit used, the fluid going into the Machine may be anywhere from 2000 to 5000 PSI. This is extremely high pressure, and may be a danger to the User in case of direct contact. For example, death or injury may result from a hose rupturing and hot, hydraulic fluid hitting a person directly. It should be noted that hydraulic fluid under normal working conditions reaches temperatures of up to 180F (82C), which can produce burns on the body, and will cause serious human body damage if delivered under pressure. Moreover, loose hoses may spring back and forth as pressure is applied and released within them, so there is some danger of being hit by a flexing hose. Also, hydraulic leaks under such high pressure can cause fluid injection below the skin or amputation.

For safety, the User should take several steps.

# Hydraulic hoses, and especially exposed hydraulic hoses, should be inspected for their integrity. When a hose is damaged or worn out, it should be replaced immediately.
# All hoses should be secured such that they move as little as possible upon pressure being cycled. Hoses should be secured in such a fashion that they do not rub against each other or against other metal parts. This prevents damage due to friction - as the rubber covering will be abraded readily, and the metal braids inside will be damaged subsequently, placing the hose at a risk of failure.
# The User should stay as far away as possible from the hydraulic hoses during machine operation and should wear safety glasses when near the Machine in case of hose rupture.

==Moving Parts Safety Issues==

The Machine has three moving parts: the main cylinder and its assembly, the secondary cylinder with the soil-loading drawer, and the soil shaker. Any User should stay behind the Safety Rope at all times when the Machine is in operation. Users with long hair should ensure hair is safely secured to prevent capture in the grate shaker motor. If the User puts their hand in the way of any pinch point, the User runs a serious risk of losing a limb immediately, and death in the worst case. The force of the main cylinder is approximately 40,000 lb, and the force of the secondary cylinder is about 10,000 lb. Also, note that the hoses flex like a stiff muscle when pressurized, so make sure that you are aware of this motion and keep well away.

==Heavy Weight Issues==

The Machine weighs about 1600 lb total. The User should avoid any situation in which there is a risk of the Machine toppling on top of the User, as injury or death by crushing may occur. This is especially true if the Machine is being moved. The Machine is designed to be moved by forklift, with forklift arms placed under the Machine arms closest to the main cylinder frame. Whenever moving the Machine, the User should secure the Machine to the forks with chains. When placing the Machine on the ground, the User should select as level a site as possible to minimize the possibility of the Machine moving. The surface directly under each foot of the Machine should be leveled so that the feet lie flat.

==Electronics Safety==

The Machine electronics are powered by 12 volts via the battery clamps. Typically, the battery that comes with the power unit is tapped. The User should be aware of the standard dangers of electric shock when working with 12V batteries.

==Power Unit Safety==

The power unit may emit loud noise, in which case any User in close proximity should wear ear protection. Standard safety procedures should be taken when dealing with engines - such as staying away from moving parts, not using indoors for risk of gaseous poisoning, and considering the risk of flammability and explosion associated with liquid or other fuels. Since the power unit connects to the Machine via hydraulic hoses, care should be taken not to step on or trip over them. Care should be taken not to damage the hoses, and to make sure that hose quick connections are securely coupled when starting the Machine. There is a risk of damaging the power unit in case of hoses being disconnected if the power unit does not have an internal pressure relief bypass. If there is no internal pressure relief and a hose is not connected, hoses on the power unit run a risk of rupture due to high pressure buildup when starting the power unit. Moreover, Users with long hair should take precautions to make sure that their hair is secured to prevent inadvertent capture in moving parts of the power unit.

==Workflow Safety Issues==

The workflow of a CEB production operation may involve a number of people and heavy equipment. The User should stay away from the working path of tractors or other heavy equipment, and wear protective eyewear and a hardhat.

The general workflow immediately surrounding the Machine may consist of:
# One or more tractors loading the hopper from the front of the Machine;
# One or more people unloading the Machine from the opposite side.

The workflow should include a set of rollers or some table surface, such that Users unloading the Machine are at least 20 feet from the hopper of the Machine. This helps to prevent any accidents related to the loader-tractor operator impacting the Machine, and the Machine subsequently hitting people on the opposite side.

The soil-loader-tractor operator should come to a full stop prior to releasing the bucket to assure a controlled soil drop and to avoid inadvertently bumping the machine.

The hopper shaker will go on and off automatically according to the programming of the Machine; the User should be aware of this so as not to be startled by the vigorous shaking.

==Weather Issues==

There are inherent risks associated with operating the Machine in foul weather. The User should never operate the Machine when there is lightning in the area, and should avoid operating the Machine when it is raining or wet. Slippery ground may be dangerous, causing the User to fall and/or fall onto the Machine; slipping may also be a danger when the User is carrying a load of blocks. Each block weighs 10-20 lbs, so Users should wear solid boots to prevent injuries related to bricks falling. During extremely hot weather, Users should pay attention to the temperature of the power unit and the hydraulic fluid, and should discontinue operations if the hydraulic fluid exceeds recommended temperatures. In extremely cold weather, the User should first warm up the Machine to normal operating temperature by running at idle, or undue stress resulting in premature hydraulic hose rupture may occur.

=Safety Features=

The Machine is built with a number of safety features:

;Pressure Relief Valves : The Machine features two pressure relief valves to release hydraulic system pressure above 2200 PSI, in order to prevent pressure buildup that could potentially rupture hydraulic hoses. The pressure relief valves are essential to the safe and efficient operation of the Machine, and they are activated on a continuous basis. The main pressure relief valve is located on the main hydraulic hoses, and the second pressure relief valve is located on the solenoid valve. The pressure relief valves may be activated upon:
# jamming or other unforeseen machine condition;
# end of the compression stroke of the main cylinder;
# cylinders reaching their limits of travel.

; Kill Switch : The safety rope around the Machine, which also serves as the power cord for the automatic controls, serves as a kill switch. When this rope is pulled from any of the 3 sides other than the control panel side, power is shut off to the machine. Another power switch is located on the bottom of the controller box.

; Hopper Orientation : The hopper is oriented in such a fashion that the tractor-loader approaches the machine from one side, and bricks are ejected from the other side. The Machine is designed for use with brick rollers attached to ejection side of the Machine. With brick rollers in place, people are removed away from the Machine by a recommended distance of 20 feet or more.

; Moving Part Covers : All moving parts are inaccessible to the User when the User remains behind the safety rope. The main cylinder is within the main pressing frame, shielded on 4 sides from the User. The hopper shaker eccentric is located behind a safety shield, away from Users.

; Machine testing code : Cylinder, bypass valve, and shaker motor functions may be tested independently with supporting control code to determine proper functioning of these components.

; Power Indicator Light in Power Switch : Machine "ON" condition may be determined visually by observing whether the power switch is lit.

; Indicator Lights on Control Circuit : For troubleshooting purposes, indicator lights on the solenoid driver board light up to indicate which solenoid sections are activated.

; Wear Protection : There are 4 adjustment bolts to keep the press foot positioned away from the walls of the compression chamber. This minimizes and at best eliminates metal-on-metal contact in the compression chamber, extending machine life. The hopper loading drawer rides on V-groove rollers above the table surface, so wear is minimized on the drawer surfaces.

=Operation and Maintenance Procedures=

For safe operation of the Machine, all the points in the Operation, Safety, and Maintenance section must be kept in mind and followed. Here are further specific operation and maintenance points:

;Assembly :
#Follow the [[CEB Assembly Video]] to put the Machine together.
#Complete the Machine assembly prior to testing and running the Machine.

;First Run and Setup :
#Follow the Initial Setup and Testing Procedure on the wiki, and verify that the relief valves, cylinders, and hopper shaker are in working order.
#Inspect all hoses and hose connections.
#Tighten any bolts that may have loosened during shipping.
#Follow all points relevant to every run in the next section.
#Set the brick thickness and machine speed as needed, by following the Machine Adjustments section.

;Every Run :
#Stay behind the safety rope at all times during operation, and remain 20 feet away from the machine unless you need to be closer.
#Inspect all hydraulic hoses for wear prior to beginning of brick production, and replace any defective hoses.
#If the machine jams for any reason, turn the power off immediately, identify and correct the problem, and restart the machine.
#Do not touch the machine while it is in operation.
#If you have long hair, make sure that it is kept away from the hopper shaker motor. Your hair may get wrapped up in the motor and pull you in, potentially killing you.
#Do not loosen the leg bolts when the machine is standing. Machine level adjustment should be performed only when a set of tractor forks or other jack is in used to prevent the machine from falling when the machine level is being adjusted.
#Wear safety goggles and a hard hat during machine operation, and ear protection in case the power unit makes a lot of noise.
#Listen to the relief valve system to make sure that it is working properly. You should hear a hiss every time the bypass condition happens.
#If you hear that the power source is bogged down or if it stops, disable the Machine immediately and identify the issue.
#Check all accessible bolts by hand or visually to make sure than they have not loosened during operation.

{{Civilization_Starter_Kit_DVD}}

CEB Press Operation, Safety, and Maintenance

2013-08-22T03:54:42Z

Scott Baker: /* Safety Features */

=Operation, Safety, and Maintenance=

Firstly, the User must acknowledge that the Machine is a heavy piece of powered equipment, and poses inherent risks of injury or death that may result from improper usage or accidents. If all operating, safety, and maintenance procedures are followed, these risks are minimized or nonexistent.

Inherent risks for the Machine arise from several sources:

# The Machine is powered by hydraulic fluid pressure, as produced by an external power source.
# There are risks associated with moving parts.
# There are risks associated with the heavy weight of the Machine.
# There are risks associated with the electrical power delivery to the Machine electronics.
# There may be risks associated with the power unit used with the Machine.
# The Machine is typically used under a workflow involving other heavy machinery used for ancillary purposes, such as soil preparation and loading. All these risks, while insignificant under normal operating conditions, can be injurious or deadly when proper procedures are not followed.

==Hydraulic Fluid Power - General Safety Considerations==

Hydraulic fluid power is used to power the Machine. The Machine is plugged into a power source via hydraulic hoses. The hydraulic power is generated by an external power unit, wherein a gas, diesel, electric, or other engine drives a hydraulic pump - which in turn pumps hydraulic fluid at high pressure through the hydraulic circuit. Depending on the power unit used, the fluid going into the Machine may be anywhere from 2000 to 5000 PSI. This is extremely high pressure, and may be a danger to the User in case of direct contact. For example, death or injury may result from a hose rupturing and hot, hydraulic fluid hitting a person directly. It should be noted that hydraulic fluid under normal working conditions reaches temperatures of up to 180F (82C), which can produce burns on the body, and will cause serious human body damage if delivered under pressure. Moreover, loose hoses may spring back and forth as pressure is applied and released within them, so there is some danger of being hit by a flexing hose. Also, hydraulic leaks under such high pressure can cause fluid injection below the skin or amputation.

For safety, the User should take several steps.

# Hydraulic hoses, and especially exposed hydraulic hoses, should be inspected for their integrity. When a hose is damaged or worn out, it should be replaced immediately.
# All hoses should be secured such that they move as little as possible upon pressure being cycled. Hoses should be secured in such a fashion that they do not rub against each other or against other metal parts. This prevents damage due to friction - as the rubber covering will be abraded readily, and the metal braids inside will be damaged subsequently, placing the hose at a risk of failure.
# The User should stay as far away as possible from the hydraulic hoses during machine operation and should wear safety glasses when near the Machine in case of hose rupture.

==Moving Parts Safety Issues==

The Machine has three moving parts: the main cylinder and its assembly, the secondary cylinder with the soil-loading drawer, and the soil shaker. Any User should stay behind the Safety Rope at all times when the Machine is in operation. Users with long hair should ensure hair is safely secured to prevent capture in the grate shaker motor. If the User puts their hand in the way of any pinch point, the User runs a serious risk of losing a limb immediately, and death in the worst case. The force of the main cylinder is approximately 40,000 lb, and the force of the secondary cylinder is about 10,000 lb. Also, note that the hoses flex like a stiff muscle when pressurized, so make sure that you are aware of this motion and keep well away.

==Heavy Weight Issues==

The Machine weighs about 1600 lb total. The User should avoid any situation in which there is a risk of the Machine toppling on top of the User, as injury or death by crushing may occur. This is especially true if the Machine is being moved. The Machine is designed to be moved by forklift, with forklift arms placed under the Machine arms closest to the main cylinder frame. Whenever moving the Machine, the User should secure the Machine to the forks with chains. When placing the Machine on the ground, the User should select as level a site as possible to minimize the possibility of the Machine moving. The surface directly under each foot of the Machine should be leveled so that the feet lie flat.

==Electronics Safety==

The Machine electronics are powered by 12 volts via the battery clamps. Typically, the battery that comes with the power unit is tapped. The User should be aware of the standard dangers of electric shock when working with 12V batteries.

==Power Unit Safety==

The power unit may emit loud noise, in which case any User in close proximity should wear ear protection. Standard safety procedures should be taken when dealing with engines - such as staying away from moving parts, not using indoors for risk of gaseous poisoning, and considering the risk of flammability and explosion associated with liquid or other fuels. Since the power unit connects to the Machine via hydraulic hoses, care should be taken not to step on or trip over them. Care should be taken not to damage the hoses, and to make sure that hose quick connections are securely coupled when starting the Machine. There is a risk of damaging the power unit in case of hoses being disconnected if the power unit does not have an internal pressure relief bypass. If there is no internal pressure relief and a hose is not connected, hoses on the power unit run a risk of rupture due to high pressure buildup when starting the power unit. Moreover, Users with long hair should take precautions to make sure that their hair is secured to prevent inadvertent capture in moving parts of the power unit.

==Workflow Safety Issues==

The workflow of a CEB production operation may involve a number of people and heavy equipment. The User should stay away from the working path of tractors or other heavy equipment, and wear protective eyewear and a hardhat.

The general workflow immediately surrounding the Machine may consist of:
# One or more tractors loading the hopper from the front of the Machine;
# One or more people unloading the Machine from the opposite side.

The workflow should include a set of rollers or some table surface, such that Users unloading the Machine are at least 20 feet from the hopper of the Machine. This helps to prevent any accidents related to the loader-tractor operator impacting the Machine, and the Machine subsequently hitting people on the opposite side.

The soil-loader-tractor operator should come to a full stop prior to releasing the bucket to assure a controlled soil drop and to avoid inadvertently bumping the machine.

The hopper shaker will go on and off automatically according to the programming of the Machine; the User should be aware of this so as not to be startled by the vigorous shaking.

==Weather Issues==

There are inherent risks associated with operating the Machine in foul weather. The User should never operate the Machine when there is lightning in the area, and should avoid operating the Machine when it is raining or wet. Slippery ground may be dangerous, causing the User to fall and/or fall onto the Machine; slipping may also be a danger when the User is carrying a load of blocks. Each block weighs 10-20 lbs, so Users should wear solid boots to prevent injuries related to bricks falling. During extremely hot weather, Users should pay attention to the temperature of the power unit and the hydraulic fluid, and should discontinue operations if the hydraulic fluid exceeds recommended temperatures. In extremely cold weather, the User should first warm up the Machine to normal operating temperature by running at idle, or undue stress resulting in premature hydraulic hose rupture may occur.

=Safety Features=

The Machine is built with a number of safety features:

;Pressure Relief Valves : The Machine features two pressure relief valves to release hydraulic system pressure above 2200 PSI, in order to prevent pressure buildup that could potentially rupture hydraulic hoses. The pressure relief valves are essential to the safe and efficient operation of the Machine, and they are activated on a continuous basis. The main pressure relief valve is located on the main hydraulic hoses, and the second pressure relief valve is located on the solenoid valve. The pressure relief valves may be activated upon:
# jamming or other unforeseen machine condition;
# end of the compression stroke of the main cylinder;
# cylinders reaching their limits of travel.

; Kill Switch : The safety rope around the Machine, which also serves as the power cord for the automatic controls, serves as a kill switch. When this rope is pulled from any of the 3 sides other than the control panel side, power is shut off to the machine. Another power switch is located on the bottom of the controller box.

; Hopper Orientation : The hopper is oriented in such a fashion that the tractor-loader approaches the machine from one side, and bricks are ejected from the other side. The Machine is designed for use with brick rollers attached to ejection side of the Machine. With brick rollers in place, people are removed away from the Machine by a recommended distance of 20 feet or more.

; Moving Part Covers : All moving parts are inaccessible to the User when the User remains behind the safety rope. The main cylinder is within the main pressing frame, shielded on 4 sides from the User. The hopper shaker eccentric is located behind a safety shield, away from Users.

; Machine testing code : Cylinder, bypass valve, and shaker motor functions may be tested independently with supporting control code to determine proper functioning of these components.

; Power Indicator Light in Power Switch : Machine "ON" condition may be determined visually by observing whether the power switch is lit.

; Indicator Lights on Control Circuit : For troubleshooting purposes, indicator lights on the solenoid driver board light up to indicate which solenoid sections are activated.

; Wear Protection : There are 4 adjustment bolts to keep the press foot positioned away from the walls of the compression chamber. This minimizes and at best eliminates metal-on-metal contact in the compression chamber, extending machine life. The hopper loading drawer rides on V-groove rollers above the table surface, so wear is minimized on the drawer surfaces.

=Operation and Maintenance Procedures=

For safe operation of the machine, all the points in the above Operation, Safety, and Maintenance section must be kept in mind and followed. In addition, here are further, specific operation and maintenance points:

Assembly:

#Follow the [[CEB Assembly Video]] to put the machine together.
#Complete the Machine assembly prior to testing and running the machine.

First Run and Setup:

#Follow the Initial Setup and Testing Procedure on the wiki, and verify that the relief valve, 2 cylinders, and hopper shaker are in working order.
#Inspect all hoses and hose connections.
#Tighten any bolts on the main frame section and any other bolts that may have loosened during shipping.
#Follow all points relevant to every machine run in the next section.
#Set the brick thickness and machine speed as needed, by following the Machine Adjustments section.

Every Run:

#Stay behind the safety rope at all times during operation, and remain 20 feet away from the machine unless you need to be closer.
#Inspect all hydraulic hoses for wear prior to beginning of brick production, and replace any defective hoses.
#If the machine locks up for any reason, turn the power off immediately, identify and correct the problem, and restart machine.
#Do not touch the machine while it is in operation
#If you have long hair, make sure that it is kept away from the hopper shaker motor. Your hair may get wrapped up in the motor and pull you in, potentially killing you.
#Do not loosen the leg bolts when the machine is standing. Machine level adjustment should be performed only when a set of tractor forks or other jack is in used to prevent the machine from falling down when the machine leveling is being adjusted.
#Wear safety goggles and a hard hat during machine operation, and ear protection in case the power unit makes a lot of noise.
#Listen to the relief valve system to make sure that it is working properly. You should hear a hiss every time the bypass condition happens.
#If you hear that the power source is bogged down or if it stops, disable the Machine immediately and identify the issue.
#Check all accessible bolts by hand or visually to make sure than they have not loosened during operation.

{{Civilization_Starter_Kit_DVD}}

CEB Press Operation, Safety, and Maintenance

2013-08-22T03:40:12Z

Scott Baker: /* Operation, Safety, and Maintenance */

=Operation, Safety, and Maintenance=

Firstly, the User must acknowledge that the Machine is a heavy piece of powered equipment, and poses inherent risks of injury or death that may result from improper usage or accidents. If all operating, safety, and maintenance procedures are followed, these risks are minimized or nonexistent.

Inherent risks for the Machine arise from several sources:

# The Machine is powered by hydraulic fluid pressure, as produced by an external power source.
# There are risks associated with moving parts.
# There are risks associated with the heavy weight of the Machine.
# There are risks associated with the electrical power delivery to the Machine electronics.
# There may be risks associated with the power unit used with the Machine.
# The Machine is typically used under a workflow involving other heavy machinery used for ancillary purposes, such as soil preparation and loading. All these risks, while insignificant under normal operating conditions, can be injurious or deadly when proper procedures are not followed.

==Hydraulic Fluid Power - General Safety Considerations==

Hydraulic fluid power is used to power the Machine. The Machine is plugged into a power source via hydraulic hoses. The hydraulic power is generated by an external power unit, wherein a gas, diesel, electric, or other engine drives a hydraulic pump - which in turn pumps hydraulic fluid at high pressure through the hydraulic circuit. Depending on the power unit used, the fluid going into the Machine may be anywhere from 2000 to 5000 PSI. This is extremely high pressure, and may be a danger to the User in case of direct contact. For example, death or injury may result from a hose rupturing and hot, hydraulic fluid hitting a person directly. It should be noted that hydraulic fluid under normal working conditions reaches temperatures of up to 180F (82C), which can produce burns on the body, and will cause serious human body damage if delivered under pressure. Moreover, loose hoses may spring back and forth as pressure is applied and released within them, so there is some danger of being hit by a flexing hose. Also, hydraulic leaks under such high pressure can cause fluid injection below the skin or amputation.

For safety, the User should take several steps.

# Hydraulic hoses, and especially exposed hydraulic hoses, should be inspected for their integrity. When a hose is damaged or worn out, it should be replaced immediately.
# All hoses should be secured such that they move as little as possible upon pressure being cycled. Hoses should be secured in such a fashion that they do not rub against each other or against other metal parts. This prevents damage due to friction - as the rubber covering will be abraded readily, and the metal braids inside will be damaged subsequently, placing the hose at a risk of failure.
# The User should stay as far away as possible from the hydraulic hoses during machine operation and should wear safety glasses when near the Machine in case of hose rupture.

==Moving Parts Safety Issues==

The Machine has three moving parts: the main cylinder and its assembly, the secondary cylinder with the soil-loading drawer, and the soil shaker. Any User should stay behind the Safety Rope at all times when the Machine is in operation. Users with long hair should ensure hair is safely secured to prevent capture in the grate shaker motor. If the User puts their hand in the way of any pinch point, the User runs a serious risk of losing a limb immediately, and death in the worst case. The force of the main cylinder is approximately 40,000 lb, and the force of the secondary cylinder is about 10,000 lb. Also, note that the hoses flex like a stiff muscle when pressurized, so make sure that you are aware of this motion and keep well away.

==Heavy Weight Issues==

The Machine weighs about 1600 lb total. The User should avoid any situation in which there is a risk of the Machine toppling on top of the User, as injury or death by crushing may occur. This is especially true if the Machine is being moved. The Machine is designed to be moved by forklift, with forklift arms placed under the Machine arms closest to the main cylinder frame. Whenever moving the Machine, the User should secure the Machine to the forks with chains. When placing the Machine on the ground, the User should select as level a site as possible to minimize the possibility of the Machine moving. The surface directly under each foot of the Machine should be leveled so that the feet lie flat.

==Electronics Safety==

The Machine electronics are powered by 12 volts via the battery clamps. Typically, the battery that comes with the power unit is tapped. The User should be aware of the standard dangers of electric shock when working with 12V batteries.

==Power Unit Safety==

The power unit may emit loud noise, in which case any User in close proximity should wear ear protection. Standard safety procedures should be taken when dealing with engines - such as staying away from moving parts, not using indoors for risk of gaseous poisoning, and considering the risk of flammability and explosion associated with liquid or other fuels. Since the power unit connects to the Machine via hydraulic hoses, care should be taken not to step on or trip over them. Care should be taken not to damage the hoses, and to make sure that hose quick connections are securely coupled when starting the Machine. There is a risk of damaging the power unit in case of hoses being disconnected if the power unit does not have an internal pressure relief bypass. If there is no internal pressure relief and a hose is not connected, hoses on the power unit run a risk of rupture due to high pressure buildup when starting the power unit. Moreover, Users with long hair should take precautions to make sure that their hair is secured to prevent inadvertent capture in moving parts of the power unit.

==Workflow Safety Issues==

The workflow of a CEB production operation may involve a number of people and heavy equipment. The User should stay away from the working path of tractors or other heavy equipment, and wear protective eyewear and a hardhat.

The general workflow immediately surrounding the Machine may consist of:
# One or more tractors loading the hopper from the front of the Machine;
# One or more people unloading the Machine from the opposite side.

The workflow should include a set of rollers or some table surface, such that Users unloading the Machine are at least 20 feet from the hopper of the Machine. This helps to prevent any accidents related to the loader-tractor operator impacting the Machine, and the Machine subsequently hitting people on the opposite side.

The soil-loader-tractor operator should come to a full stop prior to releasing the bucket to assure a controlled soil drop and to avoid inadvertently bumping the machine.

The hopper shaker will go on and off automatically according to the programming of the Machine; the User should be aware of this so as not to be startled by the vigorous shaking.

==Weather Issues==

There are inherent risks associated with operating the Machine in foul weather. The User should never operate the Machine when there is lightning in the area, and should avoid operating the Machine when it is raining or wet. Slippery ground may be dangerous, causing the User to fall and/or fall onto the Machine; slipping may also be a danger when the User is carrying a load of blocks. Each block weighs 10-20 lbs, so Users should wear solid boots to prevent injuries related to bricks falling. During extremely hot weather, Users should pay attention to the temperature of the power unit and the hydraulic fluid, and should discontinue operations if the hydraulic fluid exceeds recommended temperatures. In extremely cold weather, the User should first warm up the Machine to normal operating temperature by running at idle, or undue stress resulting in premature hydraulic hose rupture may occur.

=Safety Features=

The Machine is build with a number of safety features.

'''Pressure Reliefs''' - The Machine features 2 pressure relief valves to release hydraulic system pressure above 2200 PSI, in order to prevent pressure buildup that could potentially rupture hydraulic hoses. The pressure reliefs may be activated upon: (1), jamming or other unforeseen machine condition; (2), end of the compression stroke of the main cylinder; (3) cylinders reaching their limits. The pressure reliefs are essential to the safe and efficient operation of the Machine, and they are activated on a continuous basis. The main pressure relief is located on the main hydraulic hoses, and the second pressure relief is located on the solenoid valve.

'''Kill Switch''' - the safety rope around the machine, which also serves as the power cord for the automatic controls, serves as a kill switch. When this rope is pulled from any of the 3 sides other than the control panel side, power is shut off to the machine. Another power switch is located on the bottom of the controller box.

'''Hopper Orientation''' - The hopper is oriented in such a fashion that the tractor-loader approaches the machine from one side, and bricks are ejected from the other side. The machine is designed for use with brick rollers, such that brick rollers should be attached to ejection side of the Machine. With brick rollers in place, people are removed away from the machine by a recommended distance of 20 feet or more.

'''Moving part covers''' - All moving parts are inaccessible to the user when the user remains behind the safety rope. The main cylinder is within the main pressing frame, shielded on 4 sides from the user. The hopper shaker eccentric is located behind a safety shield, away from users.

'''Machine testing code''' - cylinder, bypass valve, and shaker motor functions may be tested independently with supporting control code to determine proper functioning of these components

'''Indicator light on the power switch''' - Machine on-condition may be determined visually by observing whether the power switch is lit.

'''Indicator lights on control circuit''' - For troubleshooting purposes, indicator lights on the solenoid driver board light up to indicate which solenoid sections are activated.

'''Wear protection''' - There are 4 adjustment bolts to keep the press foot positioned away from the walls of the compression chamber. This minimizes and at best eliminates metal-on-metal contact in the compression chamber, to extend machine life. The hopper loading drawer rides on v-groove rollers above the table surface, so wear is minimized on the drawer surfaces.

=Operation and Maintenance Procedures=

For safe operation of the machine, all the points in the above Operation, Safety, and Maintenance section must be kept in mind and followed. In addition, here are further, specific operation and maintenance points:

Assembly:

#Follow the [[CEB Assembly Video]] to put the machine together.
#Complete the Machine assembly prior to testing and running the machine.

First Run and Setup:

#Follow the Initial Setup and Testing Procedure on the wiki, and verify that the relief valve, 2 cylinders, and hopper shaker are in working order.
#Inspect all hoses and hose connections.
#Tighten any bolts on the main frame section and any other bolts that may have loosened during shipping.
#Follow all points relevant to every machine run in the next section.
#Set the brick thickness and machine speed as needed, by following the Machine Adjustments section.

Every Run:

#Stay behind the safety rope at all times during operation, and remain 20 feet away from the machine unless you need to be closer.
#Inspect all hydraulic hoses for wear prior to beginning of brick production, and replace any defective hoses.
#If the machine locks up for any reason, turn the power off immediately, identify and correct the problem, and restart machine.
#Do not touch the machine while it is in operation
#If you have long hair, make sure that it is kept away from the hopper shaker motor. Your hair may get wrapped up in the motor and pull you in, potentially killing you.
#Do not loosen the leg bolts when the machine is standing. Machine level adjustment should be performed only when a set of tractor forks or other jack is in used to prevent the machine from falling down when the machine leveling is being adjusted.
#Wear safety goggles and a hard hat during machine operation, and ear protection in case the power unit makes a lot of noise.
#Listen to the relief valve system to make sure that it is working properly. You should hear a hiss every time the bypass condition happens.
#If you hear that the power source is bogged down or if it stops, disable the Machine immediately and identify the issue.
#Check all accessible bolts by hand or visually to make sure than they have not loosened during operation.

{{Civilization_Starter_Kit_DVD}}

CEB Press 4

2013-08-22T02:17:31Z

Scott Baker: /* CEB Press IV */

=Introduction=

See http://blog.opensourceecology.org/2012/10/collaborative-production-run-video-compressed-eerth-brick-press/ for video and links to all documentation for The Liberator IV - Open Source CEB Press, Prototype IV.

==CEB Press IV==
This version of the press builds Version 3 and makes improvements towards greater ease of use and quicker fabrication. The top ten most substantial improvements are as follows:

* Hopper Design – The hopper will now catch 99% of the soil dumped into the grate due to reduced hopper aperture, and improved cut design of the hopper panels from a single 5x10 sheet of steel

* Hopper Interface Saddle – A sheet metal saddle now cradles the hopper and allows a tighter funnel for soil to fall into the compression chamber

* Compression Chamber – The long sides of the compression chamber can now be cut out of ½” steel with ½” flanges welded on as support contributing to flatter bricks.

* Primary Structural Improvement – Several structural members of the press are now built out of 3x6x3/8” steel rather than 2x6 “heavy” U-channel improving overall rigidity.

* Cylinder Press foot – The press foot which presses the bricks is now specified out of abrasion resistant (AR300) steel increasing durability.

* Press Cylinder – The press cylinder is now specified with a bare shaft on which the press foot is pinned rather than welding (as in the previous design)

* Hopper Piano Hinge – The hinges holding the walls of the hopper together are now continuous (aka "piano") hinges rather than a series of door hinges

* Drawer – The drawer is now designed out of nearly all ½” steel plate and could be cut out of a small sheet using CNC technology.

* Drawer supports – The drawer is now supported by 4 cam followers which are held by a modular drawer support assembly

* Grate attachment – The grate is now attached to its structural support using a continuous hinge so the grate can be opened upward like a hatch to maintain soil flow when blockage occurs.

==Active Developers==
Marshall Hilton P.E.

Marshall at opensourceecology dot org

==3D CAD==
<html>
<iframe src="https://www.youtube.com/embed//FO50Hk93ln8" frameborder="0" width="560" height="315"></iframe>
</html>

CAD Files for Solidworks 2012 are the following:
[https://docs.google.com/open?id=0BxdwbCg3FiGjRTNSWGg5cXNlYlE Solidworks]

STEP Files are the following:
[https://docs.google.com/open?id=0BxdwbCg3FiGjQTFzSVM5ZVJjWDg STEP]

==Fabrication Drawings==

[https://docs.google.com/open?id=0BxdwbCg3FiGjRnZTa0hmSDV1Z28 Fab Drawings]

== All files==

All the files have been uploaded to archive.org for safe keeping:
http://archive.org/details/CEB_Press_IV

[[Category:CEB_Press]]