Summary

I needed to print a spool holder for my Ender 3 Pro, and I was waiting on a cable to use OctoPrint with it (mini usb). I liked the Long With Skrew Holes model from which this is remixed, but obviously it wasn't going to fit on my Wanhao i3 Mini print bed. So I split it in two parts and added M3 bolt holes to connect the two parts together, with a press fit slot for the M3 nuts.

I only had M3x12mm bolts on hand, but I think it might work with M3x10mm bolts.