Support for Y-axis endstop Ender 3 Pro dual HGR20 linear rail mod
Description
Print in 100 % infill PCTG or similar, very sturdy materials. This is an elongated support for the Y axis endstop PCB on the Ender 3 Pro. I designed a bracket to hold the X-shaped support of the buildplate, to TWO HGR20 linear rail bearings. This is overkill for a machine like this, yet it makes it extremely stiff, with absolutely no play in the parts. However, the Y-axis endstop needed to be moved, as it was now right behind the rail. So, to make the HGR20 block click the microswitch, you have to use this support. First, use two hex socket M5 screws and T-slot nuts to block the support to the central 4040 extrusion, right behind the linear rail, as close as possibile. This is to avoid the block going beyond the end of the rail, possibly losing bearing balls. Use then the two cross-head M3 screws that hold the PCB to block it to my support.
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