Hardware Assembly Guide

We recommend you to follow the following order to assemble your BearCart.

1 Standoffs

Item Qty.
Male M2.5*15 standoff 8
M2.5 nut 8
Female M2*15 standoff 4
M2*6 screw 4

There are pockets at the bottom side of the bed. Place nuts or screws into those pockets and tighten the standoffs by hands.

prep_standoff prep_camount

2 Camera

Item Qty.
3D-Printed camera mount 1
RPi Camera module 1
CSI camera cable 1
M2.5*6 screw 2-4
M2.5 nut 2-4
M2*6 screw 2-4
M2 nut 2-4

2.1 Install Camera Mount on Bed

prep_camount post_camount post_standoff_back

2.2 Install Pi Camera

prep_cam post_cam_front post_cam_back

3 Wire Splitter

Item Qty.
Wire splitter 1
M2.5*16 screw 2
M2.5 nut 2
Female T-plug connector w/ wires 1
Male T-plug connector w/ wires 1
Female JST connector w/ wires 1

prep_splitter post_splitter post_splitter_bed

4 Buck Converter

Item Qty.
Step-Down (BUCK) converter 1
M2.5*6 screw 4
Male JST connector w/ wires 1
Female JST connector w/ wires 1

Note the arrow pointing direction below the LCD screen

prep_converter post_converter post_converter_bed

5 Pico

Item Qty.
RPi Pico 1
M2*6 screw 2-4
Male-to-Male Dupont jumper wire 1
Male-to-Female Dupont jumper wire 4
Micro-USB to USB-A cable 1
Double-Sided tape 1

Pico's GP0, GP15 and 2 GND pins will be employed later to control the ESC and the servo motor. Please refer to the Wiring Guide for more details. prep_pico post_pico

6 Raspberry Pi

Item Qty.
Raspberry Pi 5 1
M2.5*6 screw 2-4

prep_pi post_pi

7 Replace ESC

Item Qty.
QuicRun 1060 brushed ESC 1
M2*6 screw 2
M2 nut 2
Double-Sided tape 2
  1. Unplug motor power wires (blue and yellow) from the stock ESC. stock_esc
  2. Plug the motor power wires to blue and yellow wires on the new ESC esc_motor
  3. The new ESC can be seated on top of the servo motor. esc_spot
  4. Wire up ESC, servo motor and Pico esc-servo-pico For a more detailed guide on wiring, please go to the Wiring Guide page.