Hypercube 3D X carriage with cable ties

I made these as those in tech2c's designs were breaking apart due to stress on the bearing covers. Plus with only one bearing on one of the sides i was not happy with the rigidity offered. I feel cable ties perform well under stress and also less number of parts to print. There are two files. One is with 3mm nuts to hold the belts while the other is for brass inserts.