Quote Originally Posted by Nickhofen View Post
Thanks Clive, always so helpful!
Can I use the same extrusion for the x(long axis ) to bolt 20mm rails and ballscrew on? Or I need a thicker extrusion?
Its very nice using extrusion (heavy duty) because the slots it the 90x45 are exactly correct for the bk and bf bearings and can be mounted with tee nuts 6MM the 20mm rails will also mount into on top of the slots. You would have to work out how to fix the extrusion to your frame.

The ends of the extrusion can also be tapped without drilling for M12 bolts. with a spiral tap in an electric drill.