Ender 3 Adjustable X Endstop Limit Switch

thingiverse

Update 5/27/2019: The endstop/limit switch cover I used that fits well with this part is located at https://www.thingiverse.com/thing:3394736. UPDATE: 3/3/2019: Version 3 of this part has been uploaded, designed to fit Early Ender3's with longer stepper shafts and pulleys featuring grub screws (not press-fit). UPDATE: 2/2/2019: Version 2 of this part fits for those with press-fit pulleys and more recent Ender3s that have shorter stepper shafts. However, it was found to lack the clearance from the pulley needed to provide a full endstop range, causing issues when printing all the way to the X edge of my bed. The stepper motor shaft slightly interferes. ================ I remixed this design to expand the space for solder joints on the back of the board and make the cutout more symmetrical. Upon inspection, I discovered that my specific solder joint on my X endstop switch was positioned lower/differently than oldcrow66's, resulting in interference. Forcing it into place would have been possible but it would have looked out of alignment from the front. Note that the numbers on the X endstop switches differ between mine and oldcrow's, suggesting Creality may have modified the part. Additionally, I noticed that oldcrow has a press-fit pulley while my Ender3 features offset wheels with grub screw pulleys. Further investigation revealed another difference: I ran the model through netfabb, which caused it to shrink slightly, resulting in a no longer tight friction fit into the V-Slot. Pictures demonstrate what I was attempting to fix with the original part.