@3dprinting Finally, I upgraded my MMU3's firmware. Prusa released MMU3 performance improvements last week; that's a nice bonus for a printer that's 4 generations old.
🧵 92/∞
The MMU3 has been our workhorse for single-nozzle multi-material printing, and before it hands the baton to the upcoming INDX system, we wanted to give it one last significant upgrade. We usually design our hardware with some headroom, so it can...
@3dprinting The original took too long to assemble, with 20 screws. This one snaps together.
I made a compliant bushing to hold it onto the aluminum rails inside the drybox. I'm not sure that was an improvement. It does hold snugly, though.
🧵 91/∞
@3dprinting While I was there, I decided to replace one of the auto-rewinder spools that had cracked in the last few months. And then I decided to redesign the spool holders. I'd always thought it should be easier to insert a spool.
So I came up with this design. The tall post behind the spool makes it so you can't (easily) push the spool past the slot. Just push it up against the post, then drop it into the slot.
🧵 90/∞
@3dprinting 49 days ago, my printer's hotend fell out. I wrote about it here.
This week I finally repaired it -- travel and procrastination... The repair was straightforward; the hard part was cleaning off my workbench so I had room to work on it. 😒
https://chaos.social/@kbob/116063218020236097
🧵 89/∞
The basic #Prusa #CoreOne build is done! Had a few issues with heat sensor wiring (me being an idiot and flipping two cables) and the Z-axis making loud scary sounds and getting stuck. Wires were switches around, bed mounts were loosened and retightened and now it seems to be working. Right now it's doing the fastest and most aggressive #Benchy print I've ever seen. In lipstick red no less. It's pretty awesome to see something you assembled yourself work so flawlessly.
When I say basic, it's because this printer has some way to go still. I'm mounting an #mmu3 and a top filament box. Forgot the name of it, but I'll post an update. Probably not until after Christmas.
I printed a thing. Just a gift box, based on something I saw on Printables. It has some junk in the lettering, but it'll do. It has a live hinge that will probably survive about 10 uses before the PLA cracks.
To make the rough-cut page edges, I used both geometric ridges and fuzzy skin with a very long point distance -- 40 mm.
It's printing !
PRUSA CORE one with MMU3, advanced filtration and built-in camera. Luxury of a 3d printer 🥰🥰🥰.
Kernel Bob 
Jess Robinson
Saustrup
The one with the headscarf 🧕🏽