CNC was getting a bit sloppy (inaccuracy of about 0.5 mm) so I had to do some rebuilding because my current solution doesn’t have any adjustment possibilities.
Just made this on the lathe. Shaft is now 7mm so I can make my own collars and the end is 6.5 for the shaft coupler.
I’ve tested the direct drive setup and it allows speeds about 3-4 times compared to the old setup. That’s good because I’ll need that speed with one of my other projects:
This should be a part of my extruder. Already has a 3mm hole for 3mm filament. Most of the metal will be removed to create cooling ribs. Bottom will probably have an M8 thread to attach a couple so I can attach various nozzles.