Router losing steps. Solution needed. Will this help?

[JAZZCNC]

Sorry I probably didn't make this clear. Y axis has one motor at each end of the gantry each driving their own rack. Each motor has it's own MA860H driver but the pulse and direction inputs are connected to the same output from the controller.

Ok well this is BAD news and needs sorting. Chances are this has been done because NC studio cannot use slaved motors. Mach3 does allow slaved motors and is what you need. This allows each drive to have it's own set of pulses which are controlled as one axis. Effectively you are slaving 2 axis together Ie: X with B or whch ever axis you designate to be slaved.

The USB device you have isn't just a BOB if it connects to the USB and doesn't have Parallel port. It's Motion control device that provides I/O.
So in this case then you could just connect this and use with Mach. It will need a Plug-in to work with Mach. How good it will be will remain to be seen but will get you going.? Also use the external supply don't rely on USB to power.
Do you have details of it.?

Yes sorry ment circumference and if this is the case then that's ok.! . . estimate pinion about 18T if it's Mod 1.5.? 20T if Mod 1.25

[cncbobuk]

Many thanks again for your assistance, Ill try the Mach 3 option as soon as I can get round to it. The board is freely available on ebay a version of it is here http://tinyurl.com/kpwfrel

Cheers,
Bob.