M3 Nut Knob

Many 3D printer parts and gadgets need a ton of screws and nuts.
Every time I want to work on my printer I have to search for tools in my garage - and I hate this!
So I created a small knob for M3 nuts. Now I am able to release this nuts without any tools. This is very useful for nuts which have to be opened often.

This gadgets is tested with M3 nuts from DIN 934. It should work with other nuts too.
Maybe you need a small drop of glue (depending on print quality) to secure the nut in the knob.

I am using this knobs for my Anroid IP camera quick release mount or my extruder mount for example. See pictures :)