Quote Originally Posted by JoeHarris View Post
Looks great, is there any issue with using sbr / tbr rails on their side - particularly on X and Y axis - cantilevering off them rather than bearing straight down?
Yes - the load rating of the bearing blocks varies depending on the direction of the applied force. In other words if the force is in the direction attempting to pull the bearing off the rail clearly the deflection will be greater. For that reason it's best to mount them so the rail supports are facing each other. This evens out the deflection, so you effectively have medium deflection all round instead of large deflection when cutting one way and small deflection the other way.