Nozzle seal rubber band wear off way too fast because TC parking plate is kind of a fail

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Klaus Krämer

(@klaus-kramer)

Eminent Member

Nozzle seal rubber band wear off way too fast because TC parking plate is kind of a fail

I must say, the nozzle seal ruber band suffers from a failed construction of the TC parking plate;

Its ends are too sharp and wear the seal rubber band too hard. The hard edge cuts through the rubber band and destroys it prematurely.

The end of the TC parking plate should be bent round. So they wouldn't cut through the rubber band. The quality should be improved quickly. The pictures show the wear after only 3 months with 504 hours of printing.

Posted : 11/05/2024 7:35 am

username48

(@username48)

Member

RE: Nozzle seal rubber band wear off way too fast because TC parking plate is kind of a fail

Yes the sharp corners are a pretty silly oversight. My XL showed up with one of the bands torn partially out of the box due to the corners. I just used it this way, but it didn't take long for the band to rip fully.

To Prusa's credit, they did send me a pack of replacement bands once I told them about the issue.

If your bands are really wearing out or showing wear/tear quickly, I would double check that the spring steel pieces are adjusted correctly. The band should just make contact with the nozzle when the tool is parked. If you have it set too high, then the nozzle will basically collide with the rubber band each time the tool is parked.

Can't hurt to take a small file and round off the sharp corners of the steel pieces.