need a 240v ac router controler for start stop and incress and decress speed at a good prices there are a few of these available on the net the question i have to do with these items is how acarite is the speed control on these boards do you have to calabrate them or if you tall mach3 to do 10000rpm the router will do 10000rpm im a newbe need help it will need to be conected to a g540