I would venture to say this is bad

a year ago by _thebrain_ to c/3dprinting

This is my 400mm 110v silicone heat made on my bed. Suddenly nothing would stick toy bed any more, regardless of temp, offset, and adhesion assistance agents. I finally looked at the center of the bed was puffy. I was able to slide a ruler in between the aluminum bed and the pad. It took a bit of elbow grease to pull off the edges. Dunno how close to disaster I was but it's a little too close for comfort. It never overheated in all my use and the thermal fuse is still in tact but the scorch mark is still disturbing.

fulg 20 points a year ago

Oof, I can smell this picture. 🤢 Good thing you caught it before it burned.

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path: 0 17292055, hotness: undefined, score: 20, children: 0

SoulWager 5 points a year ago

Looks like the glue failed and so heat was building up instead of transferring.

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path: 0 17304501, hotness: undefined, score: 5, children: 1

_thebrain_ 2 points a year ago

Exactly. I don't know the expected life span of 3m 468mp but apparently I exceeded it in my environment and duty cycle. I'm still working on getting the residue off of the bed however, and I can say that where it stuck, and did not fail, it did an excellent job, even pulling off bits of silicone with the glue.

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path: 0 17304501 17307628, hotness: undefined, score: 2, children: 0

papalonian 2 points a year ago

I didn't look super closely at first and thought this was one of those full build plate adhesion tests and was getting ready to say how it was a waste of time to get it that dialed in. Yeah, melting heat mat is definitely a problem.

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path: 0 17297799, hotness: undefined, score: 2, children: 0

roofuskit 2 points a year ago

What printer?

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path: 0 17291898, hotness: undefined, score: 2, children: 4

_thebrain_ 8 points a year ago

Custom. It started life as a tronxy x5sa-400 but I think only 2 steppers and the frame are original still. I changed the bed to a 16"^2^ *3/8 thick aluminum tool plate about 5 years ago. It always worked well for me. Unfortunately the silicone mat I used doesn't seem to be made any more. I'm going to try one meant for a creality cr10 S4. I may have to re-machine the mounting holes for the thru holes on the mat tho.

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path: 0 17291898 17291964, hotness: undefined, score: 8, children: 3

Kuinox 6 points a year ago

tronxy x5sa-400

Ah you too decided to torture this printer.

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path: 0 17291898 17291964 17300830, hotness: undefined, score: 6, children: 2

_thebrain_ 3 points a year ago

I have had it since probably 2018? It was one of the original x5sa kits. Honestly it has been a good platform to learn off of

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path: 0 17291898 17291964 17300830 17301774, hotness: undefined, score: 3, children: 1

Kuinox 3 points a year ago

I'm starting to build a voron trident on it.
For now I stripped everything and only have the base frame.

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path: 0 17291898 17291964 17300830 17301774 17301905, hotness: undefined, score: 3, children: 0

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