Thread: Preventing racking?
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31-07-2013 #1
Hi to all, first post so go easy on me ok.
I have a Chinese router 2500x1300x200. I know, probably a mistake but ..............
The Y axis (2500) is driven by 2 steppers with their own MA860H drives. The step and direction inputs are connected in parallel so should track each other. However if one of the motors should miss a few steps due to high cutting forces at one end of the X stroke, or maybe one end of the gantry being knocked whilst the machine is off surely the x axis will be pushed out of square with the Y axis. With me so far? Any ideas how can I prevent this from happening? How is it done on "professional" machines?
Thanks for any thoughts,
Bob.
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