Hiprecy LEO - Y-axis linear rail conversion

This mod uses 2 MGN12 linear rails with 1 MGN12H block at each side. The plate which carries the hotbed is directly bolted to the MGN12H blocks in this mod. This requires some drilling/milling in this carrier. As an aid to do that I made 2 templates, with the first you can mark the position for the holes with a punch tool, with the second you can mark the outlines for the holes with a scratch tool.

I used 2 slightly oversized slotted holes, 3.2mm x 6mm to prevent strain to the linear bearing block which they don't like. I highly recommend to perform the drilling or milling with a stand to achieve a perfect 90 degrees angle. You can attach the carrier to the blocks with 10mm M3 screws and washers. Position the bed before tightening the screws.

Also included are 2 endstops. These are attached to the sides of the Y extrusions using 2 8mm M3 screws and T-slot nuts. You can use one or two as you wish. Carefully position these stops as they are the reference for the zero-position in Y.