Hi all,
I have just fitted the ballscrews and steppers ( x and Y ) to my mill and i'm getting some backlash.
the mill is a RF45, i have class5 screws and nuts, 2 angular contact's at the fixed end's that are preloaded. they have no play and don't move any where. the nuts are fixed in there mountings by 6 screws and they don't move ether. both steppers are 960oz, with olden couplings? to the screws.
when testing for backlash..... X .02mm/.03mm, Y .04mm
any idea's where this backlash could be coming from?
thx in advanced. |