Centroid Community CNC Support Forum

It appears that there must be a switch that allows the motor to turn but not the chuck. When i put the original 3 wires back from the potentiometer I get both the motor and the chuck to turn. I know this sounds really weird and i dont understand this at all as it doenst make sense to me either.

Hi there all. Am finalizing my pM25mv cnc conversion using the acorn board. My last step is to get spindle speed control. I am taking the analog out from the board to a kb 240dsi board to reduce the voltage. The wiring diagram from Francos is clear, but the part i am struggling with is the coupling ...

Hey guys, i am almost finished with my conversion but am struggling with the last step of spindle control and cannot figure out how to connect the two wired output from the kb board to the three wired input for the speed controller. And advice would be greatly appreciated.

Bernard