My 1st DIY build

[qwertyjon]

As promised, I've been working on my design. I've decided to go slightly larger as it works out at only a few £ more. So overall size is nearer 1100x1100mm now.

Can anyone point out any obvious faults before I carry on? I've designed it with twin X ballscrews, probably going to be belt driven. I'll apologise now that the screws, don't look like screws. And I've not worked out the Z axis yet. Hopefully its a good starting point though.

The base runs on 20mm supported rail, and the gantry on 16mm. The brackets that I will need to make are out of 12mm aluminium. Will that be strong enough?