Ballscrew pre-tension

[jordiboronat]

I don´t have any real pic handy at the moment but hope this cad model will help. It´s incomplete but the ballscrew are running on either side of the 100x100 steel beams.

The critical speed for 1610 should be about 1000rpm (using a root diameter of 14mm) and although the machine runs nicely at about 4m/min cutting speed, the motors stall every now and again if doing rapids at more than 4m/min.




I feel the ballscrews are quite long and I´ve read pre-tensioning them slightly might help...would like to give a try.