大家好，
所以我现在每周都会经历一卷长丝，我注意到比平常更多的失败。Specifically, I’m getting a MTTF of around 30 hours, so I’m limited in the complexity of models I can print, as if I print multiples for around 14 hours, I’m running a high risk of failure and I lose about 30% of what I print. Which is pretty poor compared to my old Up Mini, which had a MTTF of around 500 hours and was rock solid, despite the lower quality print…
无论如何，今天的失败 - 有早期的空气印花，并在6小时内打印到空气。之后，我无法清除喷嘴。所以我拆解它，我注意到当我空气打印太长时，它会在加热器中烹饪塑料。
Previously, the filament was inside the nozzle, but the latest printers use a wide thead nozzle and the plastic is inside the heater - And cleaning/changing the nozzle didn’t work - it jammed almost immediately, so I removed the nozzle and ran an extrude operation, and what came out looked pretty bad. It was crispy, sticky and twisted around a lot before clear plastic came through once again.
然后我在加热器上切掉塑料，改装喷嘴并再次跑。它再次打印。
Anyway, this was a particularly bad jam and I’m thinking that the lack of a filament movement detector is causing major problems with air printing - to the point that once it air prints for a few hours, it cooks the filament inside the heater, and will cause problems unless the heater itself is flushed with clean plastic prior to re-installing the nozzle.
在空气印刷几小时之后，还有其他人是否有类似的观察结果和/或问题？
谢谢
大卫
