Hi everyone. Bought my H2D a month or more ago. Lately, as I get used to the printer, I have noticed there seems to be a stress point where the PTFE tube enters the connector. Most of the time the PTFE tube on the left connector seems straight, but I noticed today that it is at an angle, not broken, but looks like the pull on the PTFE tube is stressing the black cap on the connecter on the nozzle. I have only seen one instance where this has broken and the parts are not available from Bambu. Just wondering if there is something I might be able to do to mitigate a failure down the road.
The part is part of the filament sensor
https://us.store.bambulab.com/products/dual-extruder-idlers-and-filament-sensor
This part has the connector. Not idea but still purchasable.
This PTFE connector can move, it’s actually a feature because depending on the selected nozzle, the cam will move the filament path below left or right so the connector can move at an angle to get it aligned. Also, depending on the position of the tool head on the bed, the connector will be angled a little or a lot but has never been caused for concerns unless your PTFE is too short. The one connector I’ve seen damaged was only due to someone who had pulled the PTFE without releasing it fully and damaged the connector grip below the black insert.
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I’ve noticed the tubes have some scoring on them from all the flexing as well where the connector holds the tube in, so something else to keep an eye on when checking for worn tubes. I noticed it first when doing some TPU.