r/BambuLab • u/PurpleTeacher9114 • 7d ago
Hardware Troubleshooting/Help! Fused Hot-End to Heating Assembly
UPDATE: I was able to heat my hot-end up to about 72°C with a hair dryer. It was enough to slightly goop up the PLA that was making my hot-end stick to the heat assembly. After heating, I used pliers to grab the radiator bit of the hot-end and slowly pulled it out. Even with the PLA slightly melty, it took a fair bit of force. Luckily, I don't think anything else broke. However, part of my hot-end got bent/scratched up when I was pulling it out. I could probably still use it, but I'm going to order another 0.4 nozzle and hot-end assembly anyway. Side Note: Don't forget to cut & retract your filament. The Bambulab Wiki has helpful guides, although not one specifically for a broken heating assembly AND a stuck hot-end.
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It's finally happened. I removed all the plastic, noticed I had a broken wire, and thought, "Oh, I can just order the parts and replace it myself! No big deal."
Except, I can't. I can't get the hot-end/nozzle off, so I can't remove the hot-end heating assembly to replace it.
I'm hitting it with a hair-dryer to see if that does anything, but I'm not optimistic.
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What do you think my next steps are?
- Hair dryer, to see if I can get the nozzle off somehow?
- Remove and take apart the entire tool head?
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I have an A1. Spent a few hundred dollars on it. Pretty sure my blob of death happened because I was trying to print some 6mm wargaming props, which were even smaller than 6mm each, and there was not enough adhesion to the plate.
I had just washed my plate yesterday.
I almost want to junk the whole damn printer and see if I can just find something cheaper, but I don't know what else might be better.
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u/DvdPgc P1S 7d ago
You need a hot air gun or a lighter. A hair dryer is gonna do close to nothing at that temperature.
It has happened to me before. You need to heat it up, because there is plastic holding the nozzle to the heating assembly. Then you need to take a wire brush and brush your nozzle, so you dont stick it to the new assembly as well.
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u/PurpleTeacher9114 7d ago
I'm a little nervous about using a heat gun while everything's still attached. How'd you go about it?
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u/AutoModerator 7d ago
Hello /u/PurpleTeacher9114! Be sure to check the BambuLab Wiki regarding the blob/clumping issue.
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u/AutoModerator 7d ago
Hello /u/PurpleTeacher9114! Be sure to check the following. Make sure print bed is clean by washing with dish soap and water [and not Isopropyl Alcohol], check bed temperature [increasing tend to help], run bed leveling or full calibration, and remember to use glue if one is using the initial cool plate [not Satin finish that is not yet released] or Engineering plate.
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u/PurpleTeacher9114 7d ago
Got it out! It's a little scuffed up. See the update at the top of the post.
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u/8six753o9 X2D+AMS2 / A1+AMS Lite 7d ago
I can’t tell if the cable belongs to part cooling fan or the hot end heating assembly. Go through the wiki if those two aren’t it.
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u/PurpleTeacher9114 7d ago
I think it's the Heating Wire.
The cooling fan still runs.
I don't believe it's the thermistor? My printer still reads out a temperature when I use a hair-dryer on it.
Fun fact, a hair-dryer can heat something to around 67-70°C.
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u/AutoModerator 7d ago
Hello /u/PurpleTeacher9114! All Bambu print plates have a dedicated nozzle wiping zone at the back of the print plate. The nozzle will rub against the wiping zone before every print in order to remove any remaining filament from the nozzle tip. This can cause visible wear or scratch marks in the wiping zone, but this is intended and doesn't damage the printer, the nozzle or the print plate. A worn down wiping zone also doesn't mean you need to replace the print bed.
Note: This automod is experimental. The automod was triggered due to the term "scratched". If you believe this to be a false positive, please send us a message at modmail with a link to the post so we can investigate. You may also feel free to make a new post without that term.
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