Borbin the 🐱

The position at the input shaft for the 3rd gear is usually not oversized so the 3rd gear could be easily pushed through and rotated to fit the 4th gear.
But I don't like any not-fixed part on the input shaft. It will just loosen over time and start wearing out. So thats why the input shaft is at a constant 3/100 oversize.
But twisting the 3rd gear was actually more difficult than I thought. Once the 3rd gear was pushed a bit on the shaft, I tried to make a small angular adjustment. I used a larger wrench made out of a high quality plastic to not scratch the gears. The wrench broke, and I had to come up with a different approach.
I fabricated two square holders that are connected with a 3/4" acme threaded rod to twist the gears. I made sure there would no breaking this time, and as it turned out, the aligning of the gears using the screw was easy.

The parts:
The square frames were cut out from a saw blade for additional strength using a plasma cutter.

The inside of the square holder were cut on the saw to match the gear pattern, and then filled with JB-Weld, and then pressed on the gear while still wet for a perfect fit.

The Mega-Twister is ready.

I used axial bearings to take the load sitting on small curved stainless steel rails. Slightly over-engineered, but it worked so smoothly.

Used a piece of plastic to keep the distance between 3rd and 4th during the angular adjustment.