STEAM Camp Module Specifications - Revision history

Marcin: /* Cordless Welder */

2019-12-31T04:27:20Z

Cordless Welder

← Older revision		Revision as of 04:27, 31 December 2019
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	[https://docs.google.com/presentation/d/1vuEeqLA4qyC9MmLiiixq6AUyjaLChnc2ILPtzdTES0E/edit#slide=id.g647f221d2d_4_38 edit]		[https://docs.google.com/presentation/d/1vuEeqLA4qyC9MmLiiixq6AUyjaLChnc2ILPtzdTES0E/edit#slide=id.g647f221d2d_4_38 edit]

	==Cordless Welder==		=Cordless Welder=

	While a corded welder power supply rectifies AC and takes id down to usable voltage via pulse-width modulation - the cordless welder uses multiple 6s 18650 battery packs. The 18650 cells are combined using a clamping system as opposed to soldering or spot welding. Instead, modular holders with flexible elements, press fit, and bolts or set screws are used to hold batteries in place. The batteries can be removed without having to solder and unsolder. The pack geometry and modular holders are 3D printed. The battery is designed with interconnects so that the battery can be stacked either in series or parallel.		While a corded welder power supply rectifies AC and takes id down to usable voltage via pulse-width modulation - the cordless welder uses multiple 6s 18650 battery packs. The 18650 cells are combined using a clamping system as opposed to soldering or spot welding. Instead, modular holders with flexible elements, press fit, and bolts or set screws are used to hold batteries in place. The batteries can be removed without having to solder and unsolder. The pack geometry and modular holders are 3D printed. The battery is designed with interconnects so that the battery can be stacked either in series or parallel.

Marcin: /* Software Toolchains */

2019-11-14T18:08:49Z

Software Toolchains

← Older revision		Revision as of 18:08, 14 November 2019
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	[https://docs.google.com/presentation/d/1WoutdpO5x1mYPFp9lAT22sBrF0kqqMf3L8bYI94GFjo/edit#slide=id.g643621a76c_0_450 edit]		[https://docs.google.com/presentation/d/1WoutdpO5x1mYPFp9lAT22sBrF0kqqMf3L8bYI94GFjo/edit#slide=id.g643621a76c_0_450 edit]

			=Raspberry Pi Tablet Specification=
			See [[Raspberry Pi Tablet Specification]]

	=Software Toolchains=		=Software Toolchains=

Marcin: /* Key Links */

2019-11-08T21:51:27Z

Key Links

← Older revision		Revision as of 21:51, 8 November 2019
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	=Key Links=		=Key Links=
	*'''[[Event ~~Manager~~ Job Announcement]]'''		*'''[[Event Planner Job Announcement]]'''
	*[[STEAM Camp - How It Works]]		*[[STEAM Camp - How It Works]]
	*'''[[STEAM Camp Scheduling]]'''		*'''[[STEAM Camp Scheduling]]'''

Marcin: /* Key Links */

2019-11-08T21:51:16Z

Key Links

← Older revision		Revision as of 21:51, 8 November 2019
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	=Key Links=		=Key Links=
	*'''[[~~Senior Project~~ Manager Announcement]]'''		*'''[[Event Manager Job Announcement]]'''
	*[[STEAM Camp - How It Works]]		*[[STEAM Camp - How It Works]]
	*'''[[STEAM Camp Scheduling]]'''		*'''[[STEAM Camp Scheduling]]'''
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	*[[STEAM Camp Specifications]]		*[[STEAM Camp Specifications]]
	*Initial organizing page - [[STEAM_Camp_Candidates]]		*Initial organizing page - [[STEAM_Camp_Candidates]]


	=Links=		=Links=
	*[[STEAM_Camp_RFPs]]		*[[STEAM_Camp_RFPs]]

Marcin at 21:48, 8 November 2019

2019-11-08T21:48:34Z

← Older revision		Revision as of 21:48, 8 November 2019
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	#Etching is done using Cuprous Sulfate and a mask drawn by the circuit plotter. The requirement includes agitation by placing the etchant bath on the D3D Universal bed to be agitated back and forth. Custom firmware is required here, or we may collapse all the firmware into one version of Marlin		#Etching is done using Cuprous Sulfate and a mask drawn by the circuit plotter. The requirement includes agitation by placing the etchant bath on the D3D Universal bed to be agitated back and forth. Custom firmware is required here, or we may collapse all the firmware into one version of Marlin

	=~~Raspberry Pi Tablet Specification~~=		=Key Links=
	#[[~~Raspberry Pi Tablet Specification~~]]		*'''[[Senior Project Manager Announcement]]'''
			*[[STEAM Camp - How It Works]]
			*'''[[STEAM Camp Scheduling]]'''
			*[[The Invitation]]. [[STEAM Camp Survey]]
			*[[STEAM Camp Curriculum Planning]]. '''[[STEAM Camp Curriculum]]''' - detail.
			*Blog post - [https://www.opensourceecology.org/ospd-and-steam-camps/]
			*Tasks for curriculum - [https://docs.google.com/presentation/d/1uftFsVQZLVmJqDI3gcNFbANLc2K9HzC4i22im1-nrhE/edit#slide=id.g5fb406605f_0_0]
			*[[OSE Talent Search]]
			*[[STEAM_Camp_Curriculum Planning#Open_Source_Prior_Art]]
			*[[STEAM Camp Specifications]]
			*Initial organizing page - [[STEAM_Camp_Candidates]]


	=Links=		=Links=
	*[[STEAM_Camp_RFPs]]		*[[STEAM_Camp_RFPs]]

Marcin: /* Raspberry Pi Tablet Specification */

2019-11-08T20:28:55Z

Raspberry Pi Tablet Specification

← Older revision		Revision as of 20:28, 8 November 2019
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	=Raspberry Pi Tablet Specification=		=Raspberry Pi Tablet Specification=
	#[[~~STEAM Camp Specifications~~]]		#[[Raspberry Pi Tablet Specification]]

	=Links=		=Links=
	*[[STEAM_Camp_RFPs]]		*[[STEAM_Camp_RFPs]]

Marcin: /* CNC Mill */

2019-11-08T20:28:26Z

CNC Mill

← Older revision		Revision as of 20:28, 8 November 2019
Line 93:		Line 93:
	#Etching is done using Cuprous Sulfate and a mask drawn by the circuit plotter. The requirement includes agitation by placing the etchant bath on the D3D Universal bed to be agitated back and forth. Custom firmware is required here, or we may collapse all the firmware into one version of Marlin		#Etching is done using Cuprous Sulfate and a mask drawn by the circuit plotter. The requirement includes agitation by placing the etchant bath on the D3D Universal bed to be agitated back and forth. Custom firmware is required here, or we may collapse all the firmware into one version of Marlin

			=Raspberry Pi Tablet Specification=
			#[[STEAM Camp Specifications]]

	=Links=		=Links=
	*[[STEAM_Camp_RFPs]]		*[[STEAM_Camp_RFPs]]

Marcin at 21:08, 2 November 2019

2019-11-02T21:08:23Z

← Older revision		Revision as of 21:08, 2 November 2019
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	[https://docs.google.com/presentation/d/1DJJ3MQkyd_DqdHKL9aRLOTlOeDN-s2HFiJ9R-87vFHk/edit#slide=id.p edit]		[https://docs.google.com/presentation/d/1DJJ3MQkyd_DqdHKL9aRLOTlOeDN-s2HFiJ9R-87vFHk/edit#slide=id.p edit]

			=Universal Axis Designer=
			*See [[Universal_Axis_Designer_in_FreeCAD]]
	=Universal Tool Head Connections=		=Universal Tool Head Connections=

Marcin: /* Universal Power Supply */

2019-10-30T20:36:19Z

Universal Power Supply

← Older revision		Revision as of 20:36, 30 October 2019
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	=Universal Power Supply=		=Universal Power Supply=
			This is the [[Universal_Power_Supply_Requirement]]

	We start with the [[Universal Controller]] and demonstrate basic power electronics control ciruits which are used with a Power Stage so the same generalized circuit '''can function as Light Dimmer, Welder, Cordless Welder, Charger, and Motor Power Supply''' for the [[STEAM Camp Curriculum]]. Thus, using this generalized module, we can domonstrate:		We start with the [[Universal Controller]] and demonstrate basic power electronics control ciruits which are used with a Power Stage so the same generalized circuit '''can function as Light Dimmer, Welder, Cordless Welder, Charger, and Motor Power Supply''' for the [[STEAM Camp Curriculum]]. Thus, using this generalized module, we can domonstrate:

Marcin: /* Universal Power Supply */

2019-10-23T23:31:46Z

Universal Power Supply

← Older revision		Revision as of 23:31, 23 October 2019
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	We start with the [[Universal Controller]] and demonstrate basic power electronics control ciruits which are used with a Power Stage so the same generalized circuit '''can function as Light Dimmer, Welder, Cordless Welder, Charger, and Motor Power Supply''' for the [[STEAM Camp Curriculum]]. Thus, using this generalized module, we can domonstrate:		We start with the [[Universal Controller]] and demonstrate basic power electronics control ciruits which are used with a Power Stage so the same generalized circuit '''can function as Light Dimmer, Welder, Cordless Welder, Charger, and Motor Power Supply''' for the [[STEAM Camp Curriculum]]. Thus, using this generalized module, we can domonstrate:
	#'''Light Dimmer'''. A simple light dimmer that takes an incandescent light bulb and controls its brighness. To do this, we rectify AC to 120DC, and then use a PWM circuit to control brightness by varying the voltage.		#'''Light Dimmer'''. A simple light dimmer that takes an incandescent light bulb and controls its brighness. To do this, we rectify AC to 120DC, and then use a PWM circuit to control brightness by varying the voltage.
	#'''Welder'''. ~~That's only the beginning - because if~~ we have a 2.4 kW (20A at 120V)-capable light dimmer - we can get into welding. If we rectify to DC, then PWM allows us to get any voltage between 15 and 25 volts - which is just perfect for a small welder of 100A DC. We also show how simply connecting 2 of these circuits in parallel allows us to scale power, based on using a single PWM output from the Universal Controller to trigger multiple transistors - for a 200A DC welder application		#'''Welder'''. If we have a 2.4 kW (20A at 120V)-capable light dimmer - we can get into welding. If we rectify to DC, then PWM allows us to get any voltage between 15 and 25 volts - which is just perfect for a small welder up to 100A DC. We also show how simply connecting 2 of these circuits in parallel allows us to scale power, based on using a single PWM output from the Universal Controller to trigger multiple transistors - for a 200A DC welder application
	#'''Cordless Welder'''~~. But that is still only the beginning~~. If we have a scalable battery pack, the Universal Power Supply can be used to make a cordless welder.		#'''Cordless Welder'''. If we have a scalable battery pack at 22V (see other specification), the Universal Power Supply can be used to make a cordless welder.
	#'''18650 Battery Charger'''. If we have a universal DC power supply - adding the right control sequence to it via the [[Universal Controller]] produces a battery charger.		#'''18650 Battery Charger'''. If we have a universal DC power supply - adding the right control sequence to it via the [[Universal Controller]] produces a battery charger.
	#'''Motor Power Supply'''. A universal DC power supply also functions naturally as supply for the 3D Printed Electric motor, which runs on 24V DC.		#'''Motor Power Supply'''. A universal DC power supply also functions naturally as supply for the 3D Printed Electric motor, which runs on 24V DC.
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	==Cordless Welder==		==Cordless Welder==

	While a corded welder power supply rectifies AC and takes id down to usable voltage via pulse-width modulation - the cordless welder uses ~~a number of~~ 6s 18650 battery packs. The 18650 cells are combined using a clamping system as opposed to soldering or spot welding. Instead, modular holders with flexible elements, press fit, and bolts or set screws are used to hold batteries in place. The batteries can be removed without having to solder and unsolder. The pack geometry and modular holders are 3D printed. The battery is designed with interconnects so that the battery can be stacked either in series or parallel.		While a corded welder power supply rectifies AC and takes id down to usable voltage via pulse-width modulation - the cordless welder uses multiple 6s 18650 battery packs. The 18650 cells are combined using a clamping system as opposed to soldering or spot welding. Instead, modular holders with flexible elements, press fit, and bolts or set screws are used to hold batteries in place. The batteries can be removed without having to solder and unsolder. The pack geometry and modular holders are 3D printed. The battery is designed with interconnects so that the battery can be stacked either in series or parallel.

	To obtain a cordless welder, a 200A aluminum bus bar (1/2" bar stock) is used to connect 24v batteries in parallel.		To obtain a cordless welder, a 200A aluminum bus bar (1/2" bar stock) is used to connect 24v batteries in parallel.