Filament support arm drooping
I am not sure of the formal name, but the support arm that guides filament across the top of the printer to the print head is drooping occasionally. The source of the issue is where the arm attaches to the back wall. The pin in that joint keeps working it way loose. Is there a way to order a replacement part?
Contact Prusa Support via chat. You will need the machine's serial number.
Cheerio,
RE:
The default pin design is poor, Prusa CS will do nothing. Use a 3mm screw and lock nut. You can adjust the tension to remove some of the droop, go too tight and it will not turn. Might as well fix the drooping ptfe while you are at it. Again Prusa CS says there is no problem, Everything's Fine.
https://www.printables.com/model/1673956-cable-chain-anti-sag-mod-for-prusa-core-one-l
Core One L MMU3, MK3S
RE: Filament support arm drooping
potentially overengineered 😀 but here's mine:
https://forum.prusa3d.com/forum/user-mods/core-one-chopstick-mod-umbilical-x-motor-jamming/
RE: Filament support arm drooping
Chat seems to be down at the moment.
RE: Filament support arm drooping
Gosh, this looks massive, I wonder how it influences the print calibrations 😀
See my GitHub and printables.com for some 3d stuff that you may like.