Quote Originally Posted by lakester View Post
I think the drivers are the exact same part on the RAMPS and RUMBA, so I expect the requirement is the same.

Will be interesting to point the IR sensor at the drivers once things are up and running...

(Forgot to mention: Colin is updating the RUMBA wiring guide to include the power supply related instructions)
Had the same issues with my RAMPS wiring guide and the exact same response from Colin. If at the beginning of the build guide you're specifically told you will need to purchase 3' of 12awg and 6' of 16awg speaker wire, and then never mention either item again in the build, leaves one hanging. Updating the wiring diagrams should at least help to a large degree.