Securing and Aligning Ballnuts

[gio666]

The Ballnut housing should be tight and slip fit for ballnut. The all adjustment is made to end of ballscrew end housing. Both end bearing then will be in line with ballnut housing . It is the easiest way to line up all parts of ballscrew

[WandrinAndy]

The Ballnut housing should be tight and slip fit for ballnut. The all adjustment is made to end of ballscrew end housing. Both end bearing then will be in line with ballnut housing . It is the easiest way to line up all parts of ballscrew

Thanks, I can understand that the ballnut must be tightly secured to the ballnut housing and at 90deg to the ballscrew, but afraid I still don't get why the ballnut needs to a be a slip fit into the housing if that is what you mean?

I would like to have the housing machined to provide plenty of one-off adjustability to cover for the likely inaccuracies in my DIY build with minimal tools... The alternative as I see it is plenty of shims and/or to change my design.

[gio666]

IF you make the ballnut housing tight fit, then you will only need to adjust the 2 end, which will make it a lot easier than trying to lineup all 3 points . If designed right you should not need shims or anything. You will have about 1mm adjustment on each end with clearance holes in ballscrew end housing bolt holes.

[gio666]

Here you will have easy adjustment with housing and not ballnut itself