Improved A/B motor mount for Voron 1
Description
While everybody are busy with their fancy-pantsy Voron 2.1 builds I decided to make little upgrade for good old Voron 1 (and 1.5). I noticed that proper belt tension on V1 tends to tilt stepper motors off axis and therefore the toothing between pulley and the belt is compromised. Also the tiny bearings inside the motors will not like the high tension applied to them. This leads to annoying belt grinding and poor noise insulation. This modification adds similar small closed loop belt stage as V2 has which enables crazy belt tensions on V1, saves your motor bearings and helps with noise insulation. Part is designed to look like the original. Only downside is that you will lose 1 mm of Y-axis length. E1: Fixed chaotic orientation of STL files. E2: Changed bearings to F695 flanged ones. Some tweaks to ease printing and made sensible sized STL files. E3: Decreased thickness of the parts by 2 mm. Added one additional support post to avoid bearings to come out of their place. Updated BOM for new hardware. Renders are not updated yet. E4: Added special version of part A for Astrosyn dampers (marked with _ast ending)
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