Serious business Bear MK2, MK2.5, MK3 x-axis replacement

thingiverse

TODOs ====== - Complete writing instructions. - Finish compiling bill of materials. - Align STLs for better orientation. - Capture images. Background ========== I sought a stiffer, more impressive X axis for my Bear printer with a more durable idler. Like the Serious Business y-axis replacement, this one employs external bearings in the idler. Also like the y-axis it uses press-fit linear bearings to maintain stiffness and straightness. This mod is somewhat easier and less invasive than the "full" Serious Business Y, but still benefits from a 15 mm reamer and an arbor press. It utilizes the same belt line as the Bear x-axis and extruder, and is therefore compatible with its carriage. Supplies ======= Incomplete. But the items you might not have: - (2) MF148 bearings - (8) M3x0.5 nylock nuts - (1) 20T idler (you must remove the bearings) Instructions ============ I will complete this later. Updates ======= None yet!