Drawbot fixed joints. GE. STEP.

The goal of the remix is to fix the odds of the original drawbot.
The joints should fit better into the rods.
The bearings are snug fit.

Complete remodelling of all questionable parts and release of the STEP file for easier modification.

Because everyone should add their CAD files when building open-source stuff.

UPDATE 1:
Important!
You need to redownload joint3. I mirrored it wrong previously. Sorry for that.