Could not calibrate filament sensor with MMU
When I installed the MMU, the calibration series included calibrating the filament sensor. But it wouldn’t let me load filament through the MMU. The solution was simple. I unscrewed the ptfe tub from the MMU and manually pushed it into the filament sensor. Problem solved but it seemed awkward to me.
in all, I’m in awe of the core one.
RE: Could not calibrate filament sensor with MMU
I don't think there is a better way, just take the PTFE tube out. This even makes sense, the MMU couldn't load it as it relies on the working sensor.
>> in all, I’m in awe of the core one.
You mean that funky box that randomly fails to power up then confesses, pants down, "unable to show details"? Respect ... of course, wouldn't want to accidentally hurt its self-esteem 🙂
Looking for a polished user experience, look elsewhere. But the prints are quite nice, usually.
RE:
BTW, random observation: When you're talking filament sensor calibration and have the MMU already attached, you may be taking a more difficult path than necessary. It's just more efficient to first sort out the printer in single-filament mode, then tackle the MMU. Otherwise, it turns into a slot machine "will my print succeed" - possibly addictive but not necessarily productive. Both printer and MMU need to be 100.0 % reliable for non-challenging prints, and it's not more efficient to fight multiple battles at the same time.
Note, the MMU can wear out filament from loading / unloading too frequently, and will outright damage it when something goes wrong (the idler carves a little half-moon shape out of the filament 350 mm away from the tip. And this will crash your next print). One battle at a time... So does e.g. a clogged nozzle, for whatever reason (thinking of heat creep). The catch is, we don't start from a blank slate after running into issues and that can make debugging more difficult than anybody would like.