Moshi to LAOS conversion K40-III¶

We brought a cheap Chinese 40W Laser Engraver/Cutter about 6 months ago, and have struggled with its Moshi-draw software until decided to convert it to a LAOS board based Laser Cutter. This is a record of the issues we faced during the conversion.

The hardware we started with:

Laser PSU :
Separate from the motor and logic power supply units is the Laser PSU. We won't modify this during this conversion, but will hook up to it. Unlike many we've seen on the internet, ours had no shielding and the connections weren't marked.