2 layers69.9 × 40.6 mm Step dir controller 3x2, the printed circuit board in 3D

Step dir controller 3x2

This device outputs three independent sets of differential step and direction signals to control motion of actuators using step and direction drivers.

Full screen GitHub .kicad_pcb

Size: 69.9 × 40.6 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 23
Nets: 49
Pads: 197
Tracks, vias: 541, 36
Pours: 2
Routed: Yes
KiCad: KiCad 5 (file 20170123)
Created: 27 Mar 2017
Updated: 23 Feb 2022

Overview

Step dir controller 3x2 is an open-source printed circuit board by janelia-kicad, from the janelia-kicad/step_dir_controller_3x2 repository on GitHub. It is a 2-layer board of 69.9 × 40.6 mm with 23 parts on 49 nets, routed with 541 tracks and 36 vias.

It is built around the 26LS31JC and TMC429-I. Its parts include 8 capacitors, 7 ICs and 3 connectors. It belongs with the robots and motor control boards of this library.

Main components

README

README.md

Repository Information
- Description
Images
Schematic
Gerbers
Bill of Materials
Supplemental Documentation
- Assembly Instructions

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Repository Information

Name: step_dir_controller_3x2
Version: 1.0
License: Open-Source Hardware
URL: https://github.com/janelia-kicad/step_dir_controller_3x2
Author: Peter Polidoro
Email: peter@polidoro.io

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Description

This device outputs three independent sets of differential step and direction signals to control motion of actuators using step and direction drivers.

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Images

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Schematic

./schematic/step_dir_controller_3x2.pdf

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Gerbers

Send gerbers zip file to your favorite PCB manufacturer for fabrication.

./gerbers/step_dir_controller_3x2_v1.0.zip

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Bill of Materials

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PCB Parts

Item	Reference(s)	Quantity	PartNumber	Vendor	Description
1	C1 C2 C3 C4 C5 C6 C7 C8	8	399-13229-1-ND	digikey	CAP CER 0.1UF 100V X7R 1210
2	CLK1	1	CTX277LVCT-ND	digikey	OSC XO 32.000MHZ HCMOS TTL SMD
3	MDB1	2	S1011E-16-ND	digikey	16 Position Header Through Hole Male Pins
4	P1 P2 P3	3	S9185-ND	digikey	CONN_HEADR_2.54MM_10POS_GOLD_SMD
5	T1 T2 T3	3	277-5738-ND	digikey	TERM BLOCK HDR 4POS VERT 3.5MM
6	U1	1	1460-1071-1-ND	digikey	IC MOTOR CONTROLLER SPI 32QFN
7	U2 U4 U6	3	296-1010-1-ND	digikey	IC QUAD DIFF LINE DRIVER 16-SOIC
8	U3 U5 U7	3	MAX6817EUT+TCT-ND	digikey	IC DEBOUNCER SWITCH DUAL SOT23-6

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Supplemental Parts

Item	Quantity	PartNumber	Vendor	Description
1	3	S9286-ND	digikey	CONN SOCKET IDC 10POS W/KEY GOLD
2	1	MC10F-100-ND	digikey	CBL RIBN 10COND TWIST-PAIR 100FT
3	3	277-2418-ND	digikey	TERM BLOCK PLUG 4POS STR 3.5MM
4	3	277-5811-ND	digikey	TERM BLOCK PLUG 4POS 90DEG 3.5MM
5	3	609-4042-ND	digikey	CONN D-SUB HD PLUG 15POS STR
6	3	609-4045-ND	digikey	CONN D-SUB HD RCPT 15POS STR
7	3	367-1139-ND	digikey	CONN BACKSHELL DB9 PLASTIC

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Vendor Parts Lists

./bom/digikey_parts.csv

./bom/supplemental_digikey_parts.csv

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Supplemental Documentation

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Assembly Instructions

Solder surface mount and through hole components onto the pcb.

Category and platform

Robots and motor control

Project files

Show this board on your page

https://pcbkit.io/boards/janelia-kicad/step_dir_controller_3x2

The board's own page, for a message or a post.

Source

Repository: janelia-kicad/step_dir_controller_3x2
Board file: step_dir_controller_3x2.kicad_pcb
Commit: 7283f81
Licence: Not stated

Parts

Qty	Value	Footprint	References
8	0.1uF	step_dir_controller_3x2:SM1210	C1, C2, C3, C4, C5, C6, C7, C8
3	26LS31	step_dir_controller_3x2:SOIC_16_0.154IN	U2, U4, U6
3	HEADER_02X05_SMD	step_dir_controller_3x2:HEADER_02x05_SMD	P1, P2, P3
3	MAX6817	step_dir_controller_3x2:MAX6817	U3, U5, U7
3	TERM_BLK_HDR_4POS_VERT_0.138IN	step_dir_controller_3x2:TERM_BLK_HDR_4POS_VERT_0.138IN	T1, T2, T3
1	CLK_32MHZ	step_dir_controller_3x2:CTS_SMD_4_7X5MM	CLK1
1	MODULAR_DEVICE_BASE_3X2_MALE	step_dir_controller_3x2:MODULAR_DEVICE_BASE_3X2_MALE	MDB1
1	TMC429	step_dir_controller_3x2:QFN-5x5-32	U1

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Questions

How big is the Step dir controller 3x2 PCB?

It measures 69.9 × 40.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Step dir controller 3x2 use?

23 parts, built around the 26LS31JC and TMC429-I. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Step dir controller 3x2 KiCad files?

From the janelia-kicad/step_dir_controller_3x2 repository on GitHub, at the commit this page was made from: the board is step_dir_controller_3x2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

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

Its repository states no licence, so its author keeps all rights: ask janelia-kicad before reusing the design.