Did I destroy my Prusa Printer?
Hello, I had an overnight print and came back to this:
I had to cut the print off. What kind of failure does this suggest? (PLA)
I had very good print results so far. Crash detection is turned off, since this led to a lot of faulty print. The only thing i changed from the last print is the filament manufacturer and the spool holder (see below)
I am thankful for any kind of tips how to get rid of the excess PLA and how to get the printer running again.
RE: Did I destroy my Prusa Printer?
Probably poor adhesion.
Maybe contaminated build plate.
Maybe poor first layer.
Probably a bit of both
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
RE: Did I destroy my Prusa Printer?
Probably poor adhesion.
Maybe contaminated build plate.
Maybe poor first layer.
Probably a bit of both
So you're saying the part detached from the build plate and then clogged the nozzle? Do these kind of blobs usually form like this?
Any suggestions on how to clean it off?
Thanks
RE:
The Blob Of Doom often times looks much worse than it is.
The rule of thumb is that heat got you into this, heat will get you out of it.
From what I can see from the photo, the bracket holding the Pinda looks like it has survived, which is a good thing. The fan shroud looks like it could be damaged, but in a pinch you can probably reprint that with the piece missing.
If this were my issue, I would start by heating the nozzle to 250C or a bit higher and let it sit for at least 1/2 hour or so to let the heat spread, and see if the blob has loosened at all. Sometimes they actually fall off when heated.
You can then 'divide and conquer' by using things such as a hot knife, a soldering iron, or a hot wire cutter to remove the pieces of the blob.
You should probably avoid the temptation to use a heat gun unless you are VERY careful, as it can easily melt and deform the good pieces of the extruder assembly.
Another thing to be VERY careful about are the wires for the heat block heater and thermistor. Do NOT force things. If those leads are surrounded by plastic, carefully melt it away. Those are probably good, so don't get impatient and make a bad thing worse.
Once you get the blob removed, you can then inspect things to see exactly how much damage remains.
If you want to see some examples of issues such as this, take a look at the Blob Of Doom Gallery here: https://www.flickr.com/groups/14741465@N23/pool/