Quote Originally Posted by JAZZCNC View Post
To be honest I'm not a fan of the open gantry design you are using with the profiles orientated in the vertical position which is there weakest orientation. Those same two profiles could make a much stronger gantry if you made it an L-shape and put the screw at the rear.
Do you reckon it would be stronger to use a single 40x160 rather than the 2 qty 80x80s (with some bracing across the back of them)?

I have 2 qty 80x80 and 2 qty 40x160. I was using the 40x160s as my Y axis rails but it occours to me that there's no reason I can't swap them out for the 80x80s and put a 40x160 on the gantry. Heck I suppose I could put 2 40x160s in the gantry, would that be overkill? The image in my head of two 40x160s bolted to make an L-shape, as you suggest, is scary big - it would be a behemoth - I like that but would the rest of the build cope with throwing all that mass around? I do also have a load of 40x80 so perhaps a 40x80 bolted to a 40x160 for a L-shaped gantry?

I'm going to take a look at it in Fusion and see how it looks.