UMR Ultra Mount cho DIN Rail

I needed a replacement DIN rail mount for my UMR Ultra and couldn't find just the right pieces, so I remixed the best pieces I did find to make a really solid mount.

I first tried to make this into one piece, but the DIN clip is really best printed on its side, for both strength and precision. I resized the holes for M3 heat set inserts (I used M3x5.7mm from CNC Kitchen) and added an infill modifier to ensure 100% infill for the diameter recommended by CNC kitchen.

I recreated each of the parts in Fusion 360 to ensure everything was aligned correctly. I cut holes in the router slide for flathead M3 screws, then used M3x6mm to join the parts. It's far more solid than I expected!

Print Recommendations

I printed using Elegoo Rapid PETG, which I've found to be very reliable on my MK4S. I went with PETG because I will be using this in a warmer environment that PLA would definitely give out in. I provided GCode for several Prusa printers with the settings I used.

• Layer Height: 0.20 mm (I used STRUCTURAL in PrusaSlicer)

• Infill: 20%, Gyroid (might be overkill, but it's very solid!)

• Walls/Perimeters (default): 2

I highly recommend you let it cool on the build plate, versus trying to remove it immediately. The thin parts of the DIN clip and the router mount may warp and lose some integrity if you take it off when it's still pliable.