I just completed assembly of MPCNC Burly version. I know, Burly is not the latest version, but I printed my parts over 3 years ago, and did not want to re-print for Primo.
While outer rails are assembled pretty good and square, middle rails have about 91 degree in between. The instruction says that tensioning bolts ‘C’ will make this angle even wider, while tightening bolt B (long one) will do the opposite. Unfortunately tightening bolt B does not make any difference for me, and I can’t get 90 degree, unfortunately.
Can someone suggest what could be done to get it square?