CNC Torch Table: Difference between revisions

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=Summary=
The '''CNC Torch Table''' (aka '''RepTab''') is a computer controlled machine that quickly cuts intricate patterns out of large steel sheets, that are difficult to cut by hand.
The '''CNC Torch Table''' (aka '''RepTab''') is tremendous upgrade for any workshop. This machine enables creation of custom parts for fabrication or replacement of broken components. The CNC Torch Table allows workshops to create replacement parts on the fly for many of the components used in the GVCS. Additionally, the torch table gives workshops the ability to create many of the custom components used in the GVCS Machines. Many parts that make up the 50 GVCS Tools can be cut on the CNC Torch Table, making this machine valuable for replication.
The machine should be able to interpret DXF files and cut out the defined parts.
 
Many parts that make up the 50 GVCS Tools can be cut on the CNC Torch Table, making this machine valuable for replication.
 
=Mechanical=
 
[[CNC Table Z Axis]]
 
[[CNC Table Y Axis]]
 
[[CNC Table X Axis]]
 
[[CNC Table Base Frame]] (including legs and holding flats)
 
Fasteners from [[BoltDepot]]
 
Metric hex nuts, Stainless steel 18-8, 5mm x 0.8mm --- x12
 
Metric socket cap, Stainless steel 18-8, 5mm x 0.8mm x 10mm --- x4 z-axis motor mounting
 
Metric socket cap, Stainless steel 18-8, 5mm x 0.8mm x 16mm --- x12 x and y-axis motor mounting
 
=Electronics=
 
<gallery perrow=6>
 
File: steppernug1labeled.svg|Steppernug v1.1
File: voltreg.png|12V and 5V Voltage Regulator
File: cnctorchtable.svg|CNC 3-Stepper Electronics
 
</gallery>
 
The CNC Torch Table uses the heavy duty [[Electronics Case]] with the reliable [[Arduino Uno]] microcontroller that controls open-source stepper drivers called [[Steppernug]]s
 
External wiring is easy with the use of [[Terminal Block]]s
 
Fans can be powered with the voltage regulator.
 
=End Effector=
This is the plasma cutter that the CNC Torch Table will be designed to work with. In the event that this cutter is no longer available here are the important specifications:
Adjustable Post Flow (power plasma only) control up to 60 seconds to improve consumable and torch life. Front air pressure adjustment makes adjusting pressure easy and painless. (PowerPlasma only)
Front air pressure gauge allows quick verification of air pressure. Over Current and Air Pressure light indicators keep you updated on your units operating condition. Suitable for use with 11,000 W "clean power" generators
60AMP 120/220Volt 50/60HZ Plasma Cutter. Cuts 3/8-Inch to 1-1/4-Inch
<gallery perrow=6>
 
File: everpplasma60.jpg|[http://www.amazon.com/Everlast-PowerPlasma-Plasma-Cutter-Cutting/dp/B0081BEWUY/ Everlast PowerPlasma 60 from Amazon]
 
</gallery>


=Status=
=Status=
The 2nd prototype is in progress, more information about the research and development can be found in the [[CNC Torch Table/Research Development|Research & Development]] section.


==CNC Torch Table Prototype II'''==
=Additional Non-Torching Tool Functions of the CNC Torch Table=
 
*As a large x-y-z coordinate table, the Torch Table has potential applications with other tooling besides a cutting torch. One limitation is that the drive system is not powerful enough or stiff enough to support heavy cutting-tool forces.
Design is finished. Stepper motor controller is under way.
*A modular tool mounting (possibly dual mounting, so two tools could be available simultanously) would facilitate tool changeover.
*[http://opensourceecology.org/w/images/7/79/CNC_Torch_Table_-_Sketchup_Model.zip Sketchup Model]
*[http://opensourceecology.org/w/images/3/31/Torch_Table_Solidworks_2010.zip Solidworks model - In progress]
*First Run of Prototype II:
 
<html><iframe width="300" height="169" src="https://www.youtube.com/embed//uvXkV08EutI?list=PL203534A13731D4FF&amp;hl=en_US" frameborder="0" allowfullscreen></iframe></html>
 
*Results: the mechanical structure is robust and lends itself to torch and CNC wood milling operations. Gantry design by [[Ben Horton]]. The innovation here is the Arduino-based stepper motor controller, [[Steppernug]] - which can be milled on a CNC circuit mill. This system is a replacement for a proprietary version equivalent to the Gecko G540 in terms of current-handling ability.
*[[CNC_Torch Table Control Overview|Computer Control Overview]]
 
[[File:SteppernugInterfaceImage.png|300px|border]] [[File:DriverBoard.jpg|300px|border]]
 
[[File:SteppernugAssy.jpg|300px|border]]
 
=Cutting Torch=
[http://www.fabricatingandmetalworking.com/2012/07/complementary-cutting-evaluating-automated-plasma-oxy-fuel-processes/ plasma vs oxyfuel comparison]
* Oxyacetylene, oxypropane, oxy-biogas. Oxygen: commercial bottled gas or on-site oxygen generator (purchase [http://www.sundanceglass.com/oxygen-concentrator.htm],[http://www.oxygenplusmedical.com/industrial_oxygen_concentrators.htm]) (build [http://cr4.globalspec.com/blogentry/20384/To-Build-an-Oxygen-Concentrator-or-Not]). Steel only. Best on thick (1 inch +) steel.
* [[Plasma_Cutter|Plasma torch]]. Cuts aluminum, stainless, others in addition to steel. PP60 [[Everlast_Plasma_Cutter]] (alternate [[Everlast_PowerPro_256]]). Plasma gas: [http://www.centricut.com/new_lessons/lessons_9.html air or oxygen]
 
= Additional (non-Torch) Tool Functions =
 
As a large x-y-z coordinate table, the Torch Table has potential applications with other tooling besides a cutting torch. One limitation is that the drive system is not powerful enough or stiff enough to support heavy cutting-tool forces.
 
A modular tool mounting (possibly dual mounting, so two tools could be available simultanously) would facilitate tool changeover.
 
Additional discussion at [[TorchTableModularTooling]]
Additional discussion at [[TorchTableModularTooling]]
=CNC Torch Table Prototype I=
[[CNC Torch Table 1]]


=Product Ecology=
=Product Ecology=
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See [[Product Ecologies]] for more information.
See [[Product Ecologies]] for more information.
=Videos=
{{Video}}


=See Also=
=See Also=

Revision as of 16:51, 24 January 2013

Main > Digital Fabrication > RepLab Tools > Torch Table


CNC Torch Table
   Home  |  Research & Development  |  Bill of Materials  |  Manufacturing Instructions  |  User's Manual  |  User Reviews    CNC Torch Table.png
CNC Torch Table Prototype I, used in 2011 Production Run
Torch Table Prototype II Design.

Summary

The CNC Torch Table (aka RepTab) is tremendous upgrade for any workshop. This machine enables creation of custom parts for fabrication or replacement of broken components. The CNC Torch Table allows workshops to create replacement parts on the fly for many of the components used in the GVCS. Additionally, the torch table gives workshops the ability to create many of the custom components used in the GVCS Machines. Many parts that make up the 50 GVCS Tools can be cut on the CNC Torch Table, making this machine valuable for replication.

Status

The 2nd prototype is in progress, more information about the research and development can be found in the Research & Development section.

Additional Non-Torching Tool Functions of the CNC Torch Table

  • As a large x-y-z coordinate table, the Torch Table has potential applications with other tooling besides a cutting torch. One limitation is that the drive system is not powerful enough or stiff enough to support heavy cutting-tool forces.
  • A modular tool mounting (possibly dual mounting, so two tools could be available simultanously) would facilitate tool changeover.

Additional discussion at TorchTableModularTooling

Product Ecology

General Fabrication Product Ecology

Made with

Creates

See Product Ecologies for more information.

See Also

CNC Torch Table Crash Course


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Key Design Planning Prototype Almost done Full Release
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