Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

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cferraz411
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Joined: Wed Aug 23, 2017 8:48 pm

Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby cferraz411 » Wed Aug 23, 2017 9:03 pm

Hello fellow Raise3D users,

I've been printing with my Raise3D for over a year now with less than 5 total failed prints over that time (my Raise3D N2 is my workhorse for prototyping). Anyway, I set a 14 hour print to print over night and I woke up to a banging noise coming from my prototyping lab. PETG had wrapped itself around the extruder and hot end, so much so, that the blob was pushing into the buildtak scratching it, while also pushing it away from the glass underneath. Me writing doesn't do it justice so I will attach images.

My initial ideas was to use my dremel to slice away at the blob, or use my soldering iron + heat gun combo to melt the blob down, and cut away the sagging plastic. Any other ideas or recommendations? You will see in the picture that I cannot remove the hot end because the mass has wrapped around the whole area, incuding the wiring.

Any help is grateful!

Cory Ferraz
Attachments
3dprint1.PNG
3dprint2.PNG
21081469_10159297004510512_716027625_o.jpg
21039518_10159296988270512_1035597962_n.jpg
21039802_10159296982945512_445846251_n.jpg

cferraz411
Posts: 4
Joined: Wed Aug 23, 2017 8:48 pm

Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby cferraz411 » Thu Aug 24, 2017 6:47 am

Fixed the issue with what I thought would work.

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Mecha_Monster
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Location: Mexico
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Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby Mecha_Monster » Thu Aug 24, 2017 2:12 pm

That thing is huge :/

I had a smaller one that I removed by heating the extruded and pulling it with pliers. Then dismounting the extruder and heating it with direct flame of my stove. The resistance and the thermocouple where a little more difficult, those had a thin layer of plastic that i could not quite remove, so when reassembling the extruder, I had to warm it up a little bit to soften the plastic and be apple to insert both elements.

What you did? pics of the aftermath?

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walshlg
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Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby walshlg » Thu Aug 24, 2017 3:25 pm

is your isolation tube loose?? Did it leak out the top of the block?? If so, that is something that you need to learn how to fix before using again.

cferraz411
Posts: 4
Joined: Wed Aug 23, 2017 8:48 pm

Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby cferraz411 » Thu Aug 24, 2017 7:44 pm

It didn't leak out the top of my isolation tube. I took off 90% of the mass (whose origin seemed to be at the nozzle), and melted/scraped off all the remaining plastic on the wires. Went for a test print and realized my calibration is off my a mm or two. Put a pretty thick scratch into my BuildTak before the print cancelled.

cferraz411
Posts: 4
Joined: Wed Aug 23, 2017 8:48 pm

Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby cferraz411 » Thu Aug 24, 2017 7:47 pm

Pictures.

Everything is clean now. Pretty much looks the same as it did before the incident minus the fan holder being broken off. Need to find the stl to reprint that.
Attachments
p1.jpg
p3.jpg
p2.jpg
p4.jpg

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Brandon
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Joined: Fri May 05, 2017 1:22 pm

Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby Brandon » Fri Aug 25, 2017 2:40 pm

The files your looking for are in ideaMaker in the file menu.

File - > Examples -> 35mm fan.stl & 35mm fan cover.stl

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walshlg
Posts: 1272
Joined: Wed Mar 23, 2016 12:01 pm

Re: Urgent! Blob of PETG all over Extruder, Print head, and Wiring (pics attached)

Postby walshlg » Fri Aug 25, 2017 2:51 pm

yeh, I've done that too


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