Thank you Jonathan
I feel a lot better now did you get my email?

I think the slight whip on the 12mm gantry support rail is not helping, I should be flat when both extrusions are bolted up to it. I was quite surprised when I offered the extrusion up to it and had to G clamp to get it flat.

all going well but I don't have a M10 starter tap, so I will have to get one in the week.

So a change of plan for today's work I'm going to mount the drivers in the old computer case

after I tidy my workshop/garage up (what a mess but not as bad as yours Jonathan:rofl::rofl:)
James