Quote Originally Posted by AndyUK View Post
Either of those two setups will work, but unlike pippin I'd favour the second one in which the gantry beam is bolted to the same plate as the bearing blocks. In the first you have an extra joint to complicate things.

Totally agree on the joining of the gantry beams though, they should be one solid unit, preferably in an L configuration.
I think that I am leaning towards the second option, it does make sense that the gantry beams and the bearing blocks being fixed to the same piece should be more rigid.

Great call on joining the gantry beams together, I hadn't considered that at all. I guess a few pieces of aluminuim plate or profile offcuts would do the job.