Ender 3 V3 spool holder quick release

I'm going to build a box for the printer, and to save 20ish cm in height I was looking to a way for a quick removal of the spool holder instead of unscrew the two bolts every time. This is the solution I found. 

It is designed to fit M7 bolts, including slots for 1 cm washers. You can modify based on what you have. 

I suggest to print the pieces vertically, so the print ridges help preventing the two pieces to not move.

If you want to improve you can make it 1 or 2 mm longer in order to be flush with the printer black beam on the front.