Mainboard Assembly Guide

This page guides through the process of wiring up an skr pico to the bambu labs a1.


1. Removing toolhead and side hub wiring

Start by removing the live camera and all connectors that travel through the hub on the side.

HubRemoval HubRemoval

Source: Bambu Labs Wiki

The current state of the printer should be as follows:
All wires going to toolhead and x motor hub should be removed
Nylon sleeve removed


2. Wiring the Motors

Remove the bigger bottom base of the 3d printer, there are 10 M2 hex screws around the edge
You have a choice in what to do.
- Get some 16 gauge wires or above and crimp them with fish hole crimps, length above 40cm at minimum
- Desolder the wires from the mainboard and solder some wires to make it longer, allowing skipping getting crimps

Route the Y (not coloured) and Z (yellow) cables so they can be accessed from the ouside. You may need to remove the smaller baseplate from the printer.
Route the psu cables to the outer side.
Seal up the bottom base of the printer, making sure they are all accessable from outside, giving enough room for bending.


3. Toolhead wiring

Some stuff routes from the toolhead to the mb, it will be plugged in later.
Plug them into the pico ports for the motors and the 24V in. [need image].
Confirm that the colours match up:
- X = Yellow
- Y = Not Coloured
- Z = Green

----