Anycubic i3 Mega S - Oh nuts!

[curious aardvark]

to use locking nuts you need a 'knob/wheel' with a void that you can press the locking nut into.

You don't screw it together :-)
{looks at thingiverse page)

Don't think that's at all what I meant lol

Are the brass things the knobs that came with the printer ?

I don't think I've posted either of mine on thingiverse yet.
But they use these: https://www.amazon.co.uk/M3-3mm-Nylo...5797280&sr=8-5

So instead of a normal 3mm nut your blue wheel would seat one of those.
They have a nylon insert that grips the bolt thread very firmly and stops the nut from moving by itself.

You could simply replace the brass part with afully 3d printed knob with the locking nut in the base.

[thegoodguy]

So instead of a normal 3mm nut your blue wheel would seat one of those.
They have a nylon insert that grips the bolt thread very firmly and stops the nut from moving by itself.

You could simply replace the brass part with afully 3d printed knob with the locking nut in the base.

This is essentialy what I did, only, effectively, I printed the nylon resistance-ring as part of the knob. I checked the plate level after a couple of prints and it's holding firm

[Xanthe]

I have a similar solution: the PETlock - printable in PET, ABS or Nylon:
https://www.myminifactory.com/object/3d-print-142792

Easier to assemble: no hammer needed, just an M3 screw to form the thread in the plastic (doing this before fitting to the printer is easier than doing it underneath the bed).