Hypercube Evolution X carriage remix

This is a remix of the X carriage from https://www.thingiverse.com/thing:2254103 During my build i had found i had ordered the wrong 3mm knurled brass inserts and that my polymer lm8uu bearings were larger diameter than advertised. This carriage allows for standard 3mm nuts to be used for belt clamp, belt tensioner, and the bearing size is 16mm. It still has the standard Prusa spacing. I found the easiest way to install the nuts for the belt tension was to use a 20mm bolt with washer and thread it threw, then thread the nut onto the bolt and tighten till the nut is set in its socket. I plan on using a 2 in 1 out hothend (Banggood ID 1322358) and a BLtouch so eventually i will build and upload the hotend bracket also.

**UPDATE**
added bed bearing holder for 22mm polymer bearing. i'm starting to get frustrated with banggood parts lol