3D Printed Stepper Motor - Revision history

Marcin at 14:19, 19 January 2020

2020-01-19T14:19:39Z

← Older revision		Revision as of 14:19, 19 January 2020
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	[[File:3D_printed_stepper.jpg\|~~300px~~]].		[[File:3D_printed_stepper.jpg\|400px]].

	=480 Step Per Revolution Nema 17 by David Hartkop=		=480 Step Per Revolution Nema 17 by David Hartkop=

Marcin at 14:18, 19 January 2020

2020-01-19T14:18:48Z

← Older revision		Revision as of 14:18, 19 January 2020
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			[[File:3D_printed_stepper.jpg\|300px]].

	=480 Step Per Revolution Nema 17 by David Hartkop=		=480 Step Per Revolution Nema 17 by David Hartkop=
	*'''https://www.thingiverse.com/thing:1362555 - amazing work'''		*'''https://www.thingiverse.com/thing:1362555 - amazing work'''

Marcin at 19:22, 20 April 2019

2019-04-20T19:22:25Z

← Older revision		Revision as of 19:22, 20 April 2019
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	Also, I didn't have a very good grasp on how to figure out the gear tooth pitch when I made that stepper motor. There is a spreadsheet I made for figuring that all out, attached to the split ring compound planet GitHub: https://github.com/IdeaPropulsionSystems/CoolEpicyclicGearing/tree/master/GearSpreadsheets		Also, I didn't have a very good grasp on how to figure out the gear tooth pitch when I made that stepper motor. There is a spreadsheet I made for figuring that all out, attached to the split ring compound planet GitHub: https://github.com/IdeaPropulsionSystems/CoolEpicyclicGearing/tree/master/GearSpreadsheets

			Downloaded: [[File:EpicyclicGearCalc_Hartkop.ods]]

	It might be overkill, but it at least lets you calculate it correctly. The pitch difference for doing this split ring thing with 60 teeth is so small you can literally 'wear-in' the pitch by just forcing it to turn with a drill for like 5 minutes, which is what I was doing.		It might be overkill, but it at least lets you calculate it correctly. The pitch difference for doing this split ring thing with 60 teeth is so small you can literally 'wear-in' the pitch by just forcing it to turn with a drill for like 5 minutes, which is what I was doing.

Marcin at 00:27, 12 April 2019

2019-04-12T00:27:37Z

← Older revision		Revision as of 00:27, 12 April 2019
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	[[File:davidhartkop.jpg]]		[[File:davidhartkop.jpg]]

			=Communications=
			Marcin,
			Thank you! I have actually made some strides in designs for 3d printable stepper motors since then, but have not had a chance to publish anything. The main advancement in that 3d printable stepper design has to do with thermal management; the wound-screw electromagnets tend to get so hot they start melting out of the holes in the motor. If you are going to build a set of them for your camp I recommend setting it up with the electromagnets on a washer being used as a standoff, see attached picture from sketchbook ;-D

			Also, I didn't have a very good grasp on how to figure out the gear tooth pitch when I made that stepper motor. There is a spreadsheet I made for figuring that all out, attached to the split ring compound planet GitHub: https://github.com/IdeaPropulsionSystems/CoolEpicyclicGearing/tree/master/GearSpreadsheets

			It might be overkill, but it at least lets you calculate it correctly. The pitch difference for doing this split ring thing with 60 teeth is so small you can literally 'wear-in' the pitch by just forcing it to turn with a drill for like 5 minutes, which is what I was doing.

			I'll check out your TED talk. That's awesome. Please let me know any way I can be involved in some things that you do. I've been developing some open source humanitarian things, one being an open source medical autoclave.
			https://www.ideapropulsionsystems.com/idea-propulsion-systems/openautoclave

			Best wishes,
			Sincerely, David Hartkop. :-D

	=See Also=		=See Also=

Marcin at 00:05, 12 April 2019

2019-04-12T00:05:45Z

← Older revision		Revision as of 00:05, 12 April 2019
Line 7:		Line 7:
	*Is this the same as [[Strain Wave Gear]]?		*Is this the same as [[Strain Wave Gear]]?

	[[File		[[File:davidhartkop.jpg]]

	=See Also=		=See Also=

Marcin at 00:05, 12 April 2019

2019-04-12T00:05:19Z

← Older revision		Revision as of 00:05, 12 April 2019
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	=480 Step Per Revolution Nema 17=		=480 Step Per Revolution Nema 17 by David Hartkop=
	*'''https://www.thingiverse.com/thing:1362555 - amazing work'''		*'''https://www.thingiverse.com/thing:1362555 - amazing work'''
	:*https://www.ideapropulsionsystems.com/david-hartkop-resume		:*https://www.ideapropulsionsystems.com/david-hartkop-resume
Line 7:		Line 7:
	*Is this the same as [[Strain Wave Gear]]?		*Is this the same as [[Strain Wave Gear]]?

	~~=Simple Versions=~~		[[File

	~~From https://makezine.com/2015/08/18/3d-print-stepper-motor/:~~

	~~<html><iframe width="560" height="315" src="https://www.youtube.com/embed/v2FNUNALSTw" frameborder="0" allowfullscreen></iframe></html>~~

	=See Also=		=See Also=
			*[[Simple Stepper Motors]]
	*[[Open Source Motor/Engine Construction Set]]		*[[Open Source Motor/Engine Construction Set]]
	*'''[[45 kW DIY Motor]]'''		*'''[[45 kW DIY Motor]]'''

Marcin: /* 480 Step Per Revolution Nema 17 */

2019-04-11T21:53:45Z

480 Step Per Revolution Nema 17

← Older revision		Revision as of 21:53, 11 April 2019
Line 1:		Line 1:
	=480 Step Per Revolution Nema 17=		=480 Step Per Revolution Nema 17=
	*'''https://www.thingiverse.com/thing:1362555 - amazing work'''		*'''https://www.thingiverse.com/thing:1362555 - amazing work'''
	~~:*https://www.ideapropulsionsystems.com/?author=5877fe7903596e2b0a8123cc~~
	:*https://www.ideapropulsionsystems.com/david-hartkop-resume		:*https://www.ideapropulsionsystems.com/david-hartkop-resume
	*More about split-ring, compound planet gears - [https://www.ideapropulsionsystems.com/idea-propulsion-systems/2017/3/17/geeking-with-gears]		:*More about split-ring, compound planet gears - [https://www.ideapropulsionsystems.com/idea-propulsion-systems/2017/3/17/geeking-with-gears]
	*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.		*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.
	*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]		*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]

Marcin: /* 480 Step Per Revolution Nema 17 */

2019-04-11T21:39:04Z

480 Step Per Revolution Nema 17

← Older revision		Revision as of 21:39, 11 April 2019
Line 3:		Line 3:
	:*https://www.ideapropulsionsystems.com/?author=5877fe7903596e2b0a8123cc		:*https://www.ideapropulsionsystems.com/?author=5877fe7903596e2b0a8123cc
	:*https://www.ideapropulsionsystems.com/david-hartkop-resume		:*https://www.ideapropulsionsystems.com/david-hartkop-resume
			*More about split-ring, compound planet gears - [https://www.ideapropulsionsystems.com/idea-propulsion-systems/2017/3/17/geeking-with-gears]
	*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.		*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.
	*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]		*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]

Marcin: /* 480 Step Per Revolution Nema 17 */

2019-04-11T21:29:52Z

480 Step Per Revolution Nema 17

← Older revision		Revision as of 21:29, 11 April 2019
Line 1:		Line 1:
	=480 Step Per Revolution Nema 17=		=480 Step Per Revolution Nema 17=
	*'''https://www.thingiverse.com/thing:1362555 - amazing work'''		*'''https://www.thingiverse.com/thing:1362555 - amazing work'''
			:*https://www.ideapropulsionsystems.com/?author=5877fe7903596e2b0a8123cc
			:*https://www.ideapropulsionsystems.com/david-hartkop-resume
	*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.		*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.
	*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]		*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]

Marcin: /* 480 Step Per Revolution Nema 17 */

2019-04-11T19:38:38Z

480 Step Per Revolution Nema 17

← Older revision		Revision as of 19:38, 11 April 2019
Line 2:		Line 2:
	*'''https://www.thingiverse.com/thing:1362555 - amazing work'''		*'''https://www.thingiverse.com/thing:1362555 - amazing work'''
	*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.		*Concept of '''split annulus gearbox''' or '''split annulus planetary gear''' - which gets a very large geardown in a super compact form factor - much improved over the stacked planetary gear!!!! Game changer for high torque, low speed applications.
			*See example at Hackaday - [https://hackaday.com/2017/03/02/unique-planetary-gearbox-can-be-custom-printed-for-steppers/]
			*Is this the same as [[Strain Wave Gear]]?

	=Simple Versions=		=Simple Versions=