spiky clicky stim toy v2

This is an improved version of my spiky clicky stim toy, with a bigger knob and better click mechanism (from my fidget click-stick).

This clicker is quite spiky to stimulate a bit of harmless pain ("stim toy"), which can help focus better under some conditions (like ADHD).

Printing: Mostly standard settings, but

• print the piston part (inner part of the knob with the click mechanism) with lower layer height (I used 0.17mm) to reduce friction and scratching noises,

• further use manual layer height on that part to get layer height even smaller right where the clicky nubs are (see screenshot), I go down to 0.08mm layer height there.

• I also uploaded 3mf files for PrusaSlicer and OrcaSlicer implementing those.

• Printing just the inner knob part in a different color adds a nice accent.

There are 2 rear lids, a normal one and one with a keychain attachment hole.

Assemble as indicated in the last image (which comes from the non-spiky version):

1. I strongly recommend applying lubricant (grease, silicone oil etc) on the click mechanism before assembling it (see photo).

2. Insert piston into tube; use optional assembly tool or a pen etc. to push it through, so it sticks out on the other side.

3. Press button part onto piston part. Use some force and the parts join with a strong click (see image).

4. Remove assembly tool. Insert spring and close with cap.

The button might get stuck pressed down the first few times; just pull out and push again to break it in and make operation smother.