HE3D Xi3 Frame parts

I managed to break this tightening the belt.
(See attached photo)
Question: Can a replacement part be printed? If so, is there a file for it somewhere (I've been looking for one)
If not, could anyone recommend a suitable substance to fabricate one from?

My "repair" seems to work for now but I really don't want to rely on it.

Looks pretty easy to fabricate. I'd use thick fibreglass, or even hardwood / good plywood. It might be easier just to reinforce the existing plate with something, rather than trying to get those holes _exactly_ the same as they were before. The easiest way I can think of would be a sandwich of fibreglass circuit board over the existing plate, with through bolts to keep everything together. This should end up stronger than the original part.

It looks like the broken part is laser cut acrylic. If you glue it back together with cyanoacrylate glue, it will be almost as strong as new.