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2 layers100 × 100 mmBob, the printed circuit board in 3D

AC Servo Driver for STM32F4

Size
100 × 100 mm
Copper layers
2
Thickness
1.6 mm
Parts
144
Nets
200
Pads
638
Tracks, vias
2,759, 170
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20170123)
Created
9 Dec 2013
Updated
23 Aug 2023

Overview

Bob is an open-source printed circuit board by rene-dev, from the rene-dev/stmbl repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 100 × 100 mm with 144 parts on 200 nets, routed with 2,759 tracks and 170 vias.

It is built around the ADM4857AR, USBLC6-4SC6 and TBD62783APG, with the ULN2803ADWR-HXY and RJ45 among its other parts. Its parts include 68 resistors, 20 ICs, 19 capacitors, 15 connectors and 5 diodes. It belongs with the robots and motor control boards of this library.

Main components

5

README

README.md

Build Status Join the chat at https://gitter.im/rene-dev/stmbl

Build Log: https://travis-ci.org/rene-dev/stmbl

DISCLAIMER

THE AUTHORS OF THIS SOFTWARE ACCEPT ABSOLUTELY NO LIABILITY FOR ANY HARM OR LOSS RESULTING FROM ITS USE. IT IS EXTREMELY UNWISE TO RELY ON SOFTWARE ALONE FOR SAFETY. Any machinery capable of harming persons must have provisions for completely removing power from all motors, etc, before persons enter any danger area. All machinery must be designed to comply with local and national safety codes, and the authors of this software can not, and do not, take any responsibility for such compliance.

This software is released under the GPLv3.

STMBL

There is work in progress on documentation: https://github.com/rene-dev/stmbl/blob/master/docs/src/Getting%20Started.adoc

IRC: #stmbl on irc.hackint.eu https://webirc.hackint.org/#stmbl

STMBL is an open source servo drive designed for Retrofitting CNC machines and Robots. It supports Industrial AC and DC servos with up to 320V and 2kW (see specs for details).

Documentation about the PCB and pinout of the feedback connector:

https://github.com/rene-dev/stmbl/wiki/Pinouts

https://github.com/rene-dev/stmbl/wiki/PCB

Hardware version 4.1

top bot case1 case2

Driving a Bosch Turboscara

https://www.youtube.com/watch?v=d6NH1W7DUnQ
https://www.youtube.com/watch?v=oTllxnYAgFc

Driving a Manutec Robot

https://www.youtube.com/watch?v=gwgnAeGjZrA
https://www.youtube.com/watch?v=wXLcAZwjlzE

Driving a Weeke BP12 VMC

https://www.youtube.com/watch?v=24LftGNp4MI

Driving a Haas VF0 (Spindle + Axes)

https://www.youtube.com/watch?v=kqenepupJIs

Drivetest

https://www.youtube.com/watch?v=-E1o_5cFyto

Supported Motors
  • Synchronous AC Servos
  • Asynchronous AC Servos
  • DC Servos
  • 2 Phase HF spindle motors
Supported Feedback systems
  • Resolvers
  • Incremental encoders
  • sin/cos encoder interpolation
  • Mitsubishi absolute encoders
  • Sanyo Denki absolute encoders
  • Yaskawa absolute encoders
  • Sick HIPERFACE®
  • Tamagawa SmartAbs
Planned:
  • EnDat
  • BiSS
  • SSI
  • Sanyo Denki wire-saving incremental encoder
Supported Position/Velocity Commands Inputs:
  • Smartserial
  • Quadrature
  • Step/direction
  • RS485
TODO
  • Sensorless FOC
Directories
  • hw/spice/ Spice simulation for resolver interface
  • hw/kicad/v4.0/ kicad files for version 4
  • src/ STM32F4 code, command, feedback and control loop
  • stm32f303/ STM32F3 code, running on the HV side, generating PWM
Commercial Applications

Should you find the GPL license insufficient for your needs, other licenses can be purchased from my company.

Likewise, please contact us should you wish to fund the further development of this project, or are interesed in custom hardware, software, or commercial support.

Parts

144
QtyValueFootprintReferences
321kResistors_SMD:R_0603_HandSolderingR33, R34, R35, R36, R37, R38, R39, R40, R41, R42, R43, R44, R45, R46, R47, R48 +16
30RResistors_SMD:R_0603_HandSolderingR10, R11, R12, R13, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26 +14
16CCapacitors_SMD:C_0603_HandSolderingC1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16
8ADM4857Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mmU1, U2, U3, U4, U5, U6, U7, U8
8RJ45RJ45:RJ45J3, J4, J5, J6, J7, J8, J9, J10
8USBLC6-4SC6TO_SOT_Packages_SMD:SOT-23-6_HandsolderingU9, U10, U11, U12, U13, U14, U15, U16
60Resistors_SMD:R_0603_HandSolderingR1, R2, R5, R6, R9, R14
4CONN_01X09Connectors_Phoenix:PhoenixContact_MCV-G_09x3.50mm_VerticalJ11, J12, J14, J15
4LEDLEDs:LED_0805D2, D3, D4, D5
4L_SmallResistors_SMD:R_0603_HandSolderingL1, L2, L3, L4
4MOUNT_3mmMounting_Holes:MountingHole_3.2mm_M3_PadM1, M2, M3, M4
4R_Pack04Resistors_SMD:R_Array_Convex_4x1206RN1, RN2, RN3, RN4
3CCapacitors_SMD:C_0805_HandSolderingC17, C18, C19
3FuseFuse_Holders_and_Fuses:Fuse_SMD1206_HandSolderingF1, F2, F3
2CONN_02X20Pin_Headers:Pin_Header_Straight_2x20_Pitch2.54mmJ1, J2
2Jumper_NC_DualPin_Headers:Pin_Header_Straight_1x03_Pitch2.54mmJP1, JP2
2TBD62783AHousings_SOIC:SOIC-18W_7.5x11.6mm_Pitch1.27mmU17, U18
2ULN2803ADWRHousings_SOIC:SOIC-18W_7.5x11.6mm_Pitch1.27mmU19, U20
1CONN_01X02Connectors_Phoenix:PhoenixContact_MC-G_02x5.08mm_AngledJ13
1DDiodes_SMD:D_SMB_HandsolderingD1

Questions

How big is the Bob PCB?

It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Bob use?

144 parts, built around the ADM4857AR, USBLC6-4SC6, TBD62783APG and ULN2803ADWR-HXY. 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 Bob KiCad files?

From the rene-dev/stmbl repository on GitHub, at the commit this page was made from: the board is hw/kicad/de0bob/Bob.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Bob design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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