Ender 3 slide on spool mount
thingiverse
When using my Ender 3 as a laser engraver, I use a cover for safety and its too short to fit over the spool holder. This allows the spool holder to slide on and off the back rail. I'm using 2x M4 screws as thats what I had available.
Download Model from thingiverse
With this file you will be able to print Ender 3 slide on spool mount with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Ender 3 slide on spool mount.