Aluminium profile CNC

[BriceO]

Hi,

It's clearer now, really nice! I finally found locally a plate 20mm, but this is grade 5083. (500x500mm is 182.- with the cut.)
Here is the specs: height tolerance: +/-0,1 mm, flatness tolerance max. 0,15 mm/m

I have made several changes on my design according to your advice. I'm trying to find the best way to mount the rails.


In this configuration, the block is on top of the extrusion. Will it be stiffer?


In this arrangement, it will be easier to mount as the space between the block and the plate is the same size as my aluminium height (20mm).

Which one do you think is the best? (The first image has the y axis a little bit lower)

Thanks again for your help :)