Mk3 style Y belt holder for Prusa Mk2.5 / Mk2 / Mk2s [Mk42/Mk52 12v heatbeds]

thingiverse

Don't bother with the old design. Instead, use Prusa's new 2-piece Y-axis belt tension adjustment system that works on printers above the Mk2 model. Check out "Y-axis parts" here: https://shop.prusa3d.com/forum/general-discussion-announcements-and-releases-f61/new-printed-parts-c1-r4-mk3s-mk2-5s-mmu2s-t27888.html?sid=c6442c7f90151ff3df9a1e820c2ae0a3 Wr125x's Y-belt holder was a bit too tight for one of my Mk52 12v heatbeds, so I lengthened the bolt hole near the front of the printer by about 1.5mm while keeping the other hole circular. This model should fit all generations of the Mk42 and Mk52 12v heatbeds. Here are some advantages over the Mk2/Mk2s design: - Consistent with the reliable Mk3 design, which Prusa has proven in their lab - Quicker installation and assembly - More stable since one hole is circular rather than elongated And here are some disadvantages compared to the Mk2/Mk2s design: - Can't adjust end stop location because the holder can't slide with respect to the heatbed