Hi all. I have measured backlash of 0.12mm on the X, all of this seems to be on the ballscrew/nut interface. This seems rather excessive..... Y and Z are around .05. My machine is from Jan 2000, and has a single ball nut on X. Questions: Am I right that there's no adjustment possible with the ball n...

the BOB is one of these: https://www.ebay.co.uk/itm/5-axis-CNC-Breakout-Board-with-optical-coupler-for-Stepper-Motor-Driver-MACH3/282673162800?hash=item41d0a22a30:g:rFcAAOSwbP1aZvGa Seems the GND is common throughout the board, including the 5v input (which I'm taking from the Baldor 96 pin) and the...

Hi all, been trawling through the forum but I've a teeny question re the sprint board on my Novamill. I've got the mill working from LinuxCNC, everything done bar spindle speed control. I have a generic BOB from ebay, have rigged up it's relay to the Sprint (pins 5 RUN and 6 COM) - to run the spindl...