Quote Originally Posted by IanS1 View Post
Thanks for your input Ross.

The A frame type design is interesting I'll look into it. The mechanically adjustable height on the gantry is worth some thought too but immediate concerns are, being a pain to set the gantry parallel to the bed every time.

The table definitely needs more work with regards to support/beefing up. I am very intrigued though about the idea of fixing the bearings to the bed and the rails to the table, I will look into it.
Yeah adjustment would be the tricky bit. You can either predrill holes at say 50mm ccs and its just a case of un bolt, move, rebolt (could still give alignment issues) or go for linear rails and lead screw to guide and adjust, then reclamp to to make it solid.

This is the way I was going to do it on mine if went down that route, except id add encoders to the lead screws and a dual display to show the position, i figure ballscrews are ott as the weight of the gantry will keep the load on the leading edge of the screw so no backlash will be present. Add hydraulic clamps job done.