New build – input/comments appreciated

[ngundtoft]

I am back.
I have not been able to post mails, because my thread suddenly disappeared. Lee has been very helpful and has recreated most of it. However, there are still some drawings/pictures missing. JAZZ can you please mail the very instructive gantry pictures again and CharlieRam can you also please send your nice drawings again?
Anyway, I agree with JAZZ, I was not too happy with the very long and complicated belt in my (now missing) drawing. The drawing from CharlieRam is a much better Construction, from a mechanical point of view, but, (as JAZZ also points out) I do not like that it blocks the end of the bed if you need to route long structures.

Previous drawing with long, complicated belt:

Drawing where I have put back the extended cantilevers at the top of the machine and moved the now longer, ballscrews, and crossed the belt over directly between them. The bracket serves as cover for the belt, and the motor/idler-pulley assembly goes on top of it, so that it doesn't block the end of the bed.