Filament can't enter extruder
This may be a stupid question, and I know I can use chat but I thought I would try this first, since the help chats take a long time.
I recently replaced the hotend in my S3+ after being frustrated by a stuck filament I couldn't resolve. When I reassembled I found I could not get the filament to load. What I mean is, when I push the filament through the hole in the top, it does not go through. Because of the previous bad clog had caused the filament to fray badly, I had had to cut the previous filament above the gears and pull it out forcibly. I also had to clean up some debris in the chamber. But now, with the inspection port open, I can't see the inserted filament at all - it only goes down about 15mm, the gear seems to be blocking the hole. Is that possible? Could it have been shifted somehow? Is there a guide or video about disassembling and reassembling the Bondtech extruder I can reference? The assembly guide for the S3+ doesn't go into it, since it is apparently pre-assembled. Any help or insights appreciated.
RE: Filament can't enter extruder
Does your new hot end have the PTFE tube installed?
RE: Filament can't enter extruder
Yes, I bought the replacement from Prusa and it had the PTFE tube in it. But the filament isn't getting anywhere near that. it is getting stopped above the gears.
Take a look at this page:
https://help.prusa3d.com/article/checking-re-aligning-the-bondtech-gear-mk3s-mk2-5s_133176
Pay particular attention to the last two pictures.
Cheerio,
RE: Filament can't enter extruder
SOLVED - Duh on me. I took the thing apart again, and found a little glob of filament in the upper passage that was blocking it. I thought I had removed the filamen cleanly when I pulled it out, but it left a hidden blockage. Obvious in retrospect. I suspected it was a dumb question. thanks.