RepRapDiscount Smart Controller Mount for 2020 Frames

Allows you to mount the LCD screen smart controller on a 2020 frame rail. T-nut shape is printed in the design, so you do not need any hardware to mount it to the frame (you will need 2mm screws to mount the LCD to the holder, though). I designed the printed T-nut section to be a very tight fit, so you will probably have to use a small file to get it to work for you. For the best fit, place the T-nut part parallel with the groove in the rail, and twist 90 degrees to lock it in.

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