The ball nuts leave the factory on the 20th so i expect them to arrive mid week (Wednesday / Thursday.)

Quote Originally Posted by HiltonSteve View Post
Have to agree with Gary here, using open bearings will always cause you crabbing problems which is why I dismissed them for my design, but driving from both sides will soon sort that out.

Though, I have built up my X axis gantry yesterday on my machine which has a bed size of 1000mm x 600mm and using 20mm THK linear bearings gets virtually no crabbing, I will be driving this machine from the centre. It is a pretty solid all aluminium machine which does help though. will get a clock gauge on it later to measure it but it is not a lot.

Gary - Don't forget to send me those 16mm ballnuts when they come in, they are the only piece missing now before I can get up and running.