Stepper controller 3x2

janelia-kicad·stepper_controller_3x2

Stepper controller 3x2 PCB layout, top view — open source board by janelia-kicad

About the Stepper controller 3x2 PCB

Stepper controller 3x2 is an open source PCB design by janelia-kicad, published on GitHub under the Custom license license. It is a 2-layer board measuring 70.5 × 41.9 mm, with 31 components from 18 distinct parts.

Other key parts include the TMC429, BUFFER_TRI_STATE, SN74ABT541BDWR, VAL** and OPTOISO_2CHAN. By type, the board carries 11 capacitors, 6 ICs, 6 resistors, 2 transformers, 1 connector and 1 diode.

It belongs with the robotics & motion designs in this gallery.

From the project

- Repository Information - Description - Images - Schematic - Gerbers - Bill of Materials - PCB Parts - Supplemental Parts - Vendor Parts Lists - Supplemental Documentation - Assembly Instructions

- Repository Information - Description - Images - Schematic - Gerbers - Bill of Materials - PCB Parts - Supplemental Parts - Vendor Parts Lists - Supplemental Documentation - Assembly Instructions

- Name: stepper\controller\3x2 - Version: 1.2 - License: Open-Source Hardware - URL: - Author: Peter Polidoro - Email: peter@polidoro.io

This board controls 1 stepper motor with optional forward and reverse limit switches.

Stepper controller 3x2, from the project README — From the project README

Main components on the Stepper controller 3x2

TMC429 BUFFER_TRI_STATE SN74ABT541BDWR VAL**OPTOISO_2CHAN

Stepper controller 3x2 bill of materials (BOM)

31 components, 18 distinct parts.

Qty	Part	Footprint	Refs
1	TMC429	QFN-5x5-32	U1
2	BUFFER_TRI_STATE	SOT-23-5	U2, U4
1	SN74ABT541BDWR	SOIC_20	U3
1	VAL**	MAX6817	U5
1	OPTOISO_2CHAN	SO-8	U6
1	PWR_JACK_2.5x5.5	DCJACK_2PIN_HIGHCURRENT	P1
1	CLK_32MHZ	CTS_SMD_4_7X5MM	CLK1
1	VAL**	MODULAR_DEVICE_BASE_3X2_MALE	MDB1
1	CONV_DC_DC_5V_1A	DC_DC_CONV_R78C	REG1
1	STEPSTICK	STEPSTICK	SS1
1	TERM_BLK_HDR_4POS_VERT_0.2IN	TERM_BLK_HDR_4POS_VERT_0.2IN	T1
1	TERM_BLK_HDR_4POS_VERT_0.150IN	TERM_BLK_HDR_4POS_VERT_0.150IN	T2
1	diode_schottky_45V_10A	CFP15	D1
7	0.1uF	SM0805	C1, C4, C5, C8, C9, C10, C11
3	10uF	SM0805	C2, C3, C7
1	220uF_POL	C_ELEC_10	C6
2	10.0k	SM0805	R1, R2
4	845	SM0805	R3, R4, R5, R6

Stepper controller 3x2 design files

The KiCad project lives in the janelia-kicad/stepper_controller_3x2 repository on GitHub; these links point at the commit this page was built from.

Layoutstepper_controller_3x2.kicad_pcb

Stepper controller 3x2: common questions

How big is the Stepper controller 3x2 PCB?

The Stepper controller 3x2 measures 70.5 × 41.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stepper controller 3x2?

31 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Stepper controller 3x2 design files?

From the janelia-kicad/stepper_controller_3x2 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Stepper controller 3x2 design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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