What to do…Filament extruded string flips to outside of poop tray. Sometimes the filament will extrude to the outside of the tray and land on the plate. Sometimes it ends up on the bottom of the printer and sometimes it get into the print. Anybody found a solution for this?
The stock nozzle wipe leaves a lot to be desired and IMO is a bad design which many people, including me, have replaced with better designs. There are various designs on Printables and Maker World to choose from.
That would be my first suggestion. Many incorporate the silicone nibs that are part of the A1 Heatbed Nozzle Wiper
Only one I’ve heard that works with PETG/CF well…
That may be so but I suspect it is a rare user that their sole focus is PETG/CF
Consequently many of the designs will work fine for almost everyone.
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LOL I made that.
It works with anything so far. Haven’t touched it in like 700 hours btw.
It’s based off of the physics of pinching, not some inaccurate wiping across stuff. It also includes a lean to compensate for the bend the wiper support develops over time.
It’s the only one I’ve ever used that prevents stringing from petg, that was my entire purpose in making it, only to find out it’s a damn fine piece of tech. Took me a few weeks of different designs. Never thought it would turn out as good as it did.
Okay.
I made a more mainstream wiper and since the intent is to just break off the .2 or .4mm (typical) filament and those mainstream ones seem to be satisfactory to most users, thats what I recommended to the questioner.
Looks like you need to replace it and make a new one based on the photographs.
It would probably be better to post the design pre-slice also.
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I had a feeling it was a competitor defending something 
Anyways to the OP, leftover filament is a thing of the past, really wish Bambu would issue a hardware update for it. I thought the printer was amazing when I got it, then realized the wiper bent quite quickly and became unreliable. I was disappointed to say the least.
For the ‘extruding outside the dump area’, does it start with a bigger section hanging from the nozzle, then when it moves to the dump area it’s still there?
I’ve seen that anyways, if you add ‘M104 S0’ to your machine end gcode:
The nozzle turns off sooner preventing the ooze during the final few instructions at the end of a print. Nozzle temp remains high enough to still retract filament from the AMS. This way there is never a big hanging section to catch on the outside of the bin.
Thanks [kungpaoshizi] I will give that a shot
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You do realize most of the wiping and nozzle cleaning is done by oscillating the nozzle back and forth against the slot at the rear center of the build plate.
Not by the quick pass over the silicone tubing.
