Quote Originally Posted by reefy86 View Post
no just 2 sets in between and the epoxy on the top is just a reference for the gauge indicator, one some videos people sit a magnetic block onto to linear bearing blocks and the have the gauge indicator touch against the aluminium extrusion all the way down the rail until its square but aluminium extrusion is not perfectly straight but with the epoxy resin being very flat and straight then i thought doing it this way may work.
Now I get it, smart! ;)

I have been using a dti alot lately.. was so hung up on aligning my rails (went fine) that I more or less forgot/neglected the ballscrews, bearings and ballnut..

If you get a dti make sure it has a good holder (if its called that) with a strong magnetic base.
Mine is utter crap and its frustrating when you hand turn the ballscrew with everything mouted from one end almost to the next and the dial tip just moves off the reference. Not worth the 5-20 you save on a cheap holder :)

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