(V1) For BIQU B1, DIY Enclosure, Remix of Prusa IKEA Lack Enclosure, extra doors (opening 3 sides)

Heads up! This is v1. A new, improved "v2" is NOW AVAILABLE!A new, improved "v2" of this enclsoure has been developed. Get it here:https://makerworld.com/en/models/219567  If you're planning to make this, check out the discussion in comments linked right here:https://www.thingiverse.com/thing:5137500/comments#comment-6269801 I am a big fan of the BIQU B1. Of the seven 3D printers I currently own, four are B1's, and I have a BIQU B1 SE Plus on order. As you may know, a B1 is too tall to