KX3 Spindle Problem

[JAZZCNC]

Hi Jaz
Yes the 0-10v comes from the BOB in the right hand side electrical compartment and then goes to the DC spindle control board in the rear compartment. All the works are as the standard Sieg KX3. I'll take some photos and post them to-morrow.
Thanks
Ken

Ok well that's simple enough to check. Disconnect the wires going to the Spindle control board and measure the voltage at commanded speeds. If you haven't changed any of the Spindle settings in control software (mach3 I presume) then you should get 10v at full commanded speed. If you don't then it's the BOB at fault not the spindle control board.
If you have changed the spindle settings then I can't help anymore without knowing the BOB your using, but Knowing John S it won't be anything too fancy as he liked to keep it simple and cheap.