3DPrinting

Oof, that's a bad day. Hope the cleanup wasn't terrible.

As a seethingly jealous ender 3 peasant who is still spending most of his time keeping my printer working with kludges and duct tape; it's nice to know Bambu owners are human after all and still run into problems.

Hope you get it sorted and are back printing soon! 🖖

I've had 3 blobs over the years, all caused by an otherwise benign issue turned into that because filament got caught in a silicon sock.

I've been doing 3D printing regularly for a decade or so now... Never had a blob.

I don't think it's supposed to do that

that looks like delicious taffy. like an abba zaba

Nozzle not seated properly?

If you use OctoPrint you can get plugins that use a camera to watch for failed prints like stinging etc and it will stop the print if it fails.

I forget the name of the plugins right now. I went to say “Dr” something.

I had this happen. Pop the whole hotend in the oven on the warm/hold setting for a bit and it should come off fairly easily.

I've run into adhesion problems when the room gets colder.

works 99% of the time, but when ambient temp goes below 70°F everything starts failing.

It's a learning experience. Is your nozzle torqued to spec? Only time I've seen something like this is when the heatbreak/nozzle weren't set correctly on a v6 hotend, and even then it just oozed down, didn't consume the entire heatsink. I kept that in my box of learning lol, swapped everything to hotends that are secured so they don't spin freely after that, was petg so it degraded in the heat and was such a pain in the ass to remove from set screws, was ok writing it off.

Bed adhesion is often caused by surface cleanliness in my experience, some setting will influence it but you're going to chase problems if your surface has residual oils, some surfaces are more sensitive to it but even the oils in your fingerprints can cause a loss of adhesion. Light dish soap and water is the general recommendation for a degreaser but be aware that this will damage some surfaces, I've got some that explicitly want only 99% IPA and another that only wants a clean microfibre cloth.

Drafts can cause an issue too, seen some abs fail becauae I didn't have the enclosure latched properly and the doors worked their way open with vibrations from printing, I keep mine in my garage and live in Canada, enclosures are a must for me.

OH NO

Hey, ummm... I think I see the problem. Your printer has diarrhea

I've a massive blob like this one time when the nozzle got clogged and the extruder created enough pressure to push the filament through the threads of the hotend block. It was on an Anet A8 and I ripped a lead off the thermistor trying to get the plastic off so I ended up replacing the entire hotend.

You can try to heat up the hotend to a fair bit under the melting point of the filament to where it's soft and somewhat pliable but not runny or sticky and then trying to peel it off. Though you'd risk damaging any leads to the thermistor, heater, or your hands if you're not careful.

Good luck on fixing the printer and getting back to printing again. 3D printing is a really time consuming hobby

I don't see a beginning of a print anywhere, did it not even manage to do the first layer?

If that's the case, a word of advice to always be present for the first 2 layers of your prints, at least for the longer ones.

Atleast it didnt get wedged in the heat sink... Thats what happeneed to my last blob, had to replace the entire hot end.