Hi David,

Welcome to the forum!

Please take a look in the " Chinese Machines " sub forum for a start on these types of machine.

In short, PCB's and light (soft metals) work sums up the limitations of these machines quite well.

These particular machines I believe use the Grbl CNC controller https://github.com/grbl/grbl

I dont know much at all about using GRBL, I do know a good choice of CAD software to use could be a package called Fusion 360, as I know this has a GRBL post processor, Fusion 360 is also free to use for diy/hobby users, its made by the same people as AutoCad so has quite some backing, we also have quite a number of users on the forum.

Fusion 360 Link: https://www.autodesk.com/campaigns/f...-for-hobbyists

Good luck with the machine.