A project is never finished! :)
Nice, not suitable for this setup, they are more for 4wd crawlers.
The big scoopy sand type ones? I’ve no TPU and no sand, but we can fix that in the future!
A little model engine, early sidevalve type, guy has quite a few variations, but the second gen single now has proper cam timing. which I am unreasonably excited by.
I have my 3kg spools above the printer as well, not having your issue, I think the difference is I’m using a guide pulley on a skate bearing to direct the filament straight into the extruder.
I can imagine oversize novelty tp dispensers keys being peak insider humour in little and larger oss projects to come.
I wish I could upvote this more