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2 layers90 × 80 mmPr mini bot, the printed circuit board in 3D

a miniature bot that mimics 8339 2025 frc bot hehe

Size
90 × 80 mm
Copper layers
2
Thickness
1.6 mm
Parts
30
Nets
10
Pads
47
Tracks, vias
40, 284
Pours
2
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
7 Sep 2025
Updated
20 Sep 2025

Overview

Pr mini bot is an open-source printed circuit board by tobycm, from the tobycm/pr-mini-bot repository on GitHub, published under the MIT licence. It is a 2-layer board of 90 × 80 mm with 30 parts on 10 nets, routed with 40 tracks and 284 vias.

It is built around the MCR100-8. Its parts include 5 resistors, 5 diodes and 2 capacitors.

Main components

1

README

README.md

8339 Miniature Robot

a miniature bot that mimics 8339 2025 frc bot hehe

PCB

3D View

3d view

Front

pcb front

Back

pcb back

Parts

30
QtyValueFootprintReferences
8MountingHoleMountingHole:MountingHole_3.2mm_M3_PadH1, H2, H3, H4, H5, H6, H7, H8
5TestPointTestPoint:TestPoint_Pad_D2.0mmTP1, TP2, TP3, TP5, TP6
422.1kResistor_SMD:R_0603_1608MetricR2, R3, R4, R5
21tobycms-cursed:big capC1, C2
2D_SchottkyDiode_SMD:D_SOD-123D1, D3
2TestPointTestPoint:TestPoint_Pad_D3.0mmTP4, TP7
10.5WConnector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_HorizontalSC1
11.24kResistor_SMD:R_0603_1608MetricR1
13.9VDiode_SMD:D_SOD-123D2
1GreenLED_SMD:LED_0805_2012MetricD5
1MCR100-8MCR100_8:SOT23_DIOCR1
1OrangeLED_SMD:LED_0805_2012MetricD4
1SSM3J338R_LFSSM3J338R_LF:SOT-23F_TOSMOSFET1

Questions

How big is the Pr mini bot PCB?

It measures 90 × 80 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pr mini bot use?

30 parts, built around the MCR100-8. 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 Pr mini bot KiCad files?

From the tobycm/pr-mini-bot repository on GitHub, at the commit this page was made from: the board is src/pr-mini-bot.kicad_pcb and its schematic src/pr-mini-bot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Pr mini bot design in my own project?

Its repository publishes it under the MIT 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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