I experience the silicone sock to ooze out hard, clearish drops onto the print bed from time to time.
When I removed the sock today, it was britle and hardened with cracks and a molten part.
Happened with an original micro swiss silicone sock.
Has anyone else experienced this and has eventually a fix against it?
No filament leak, it comes from the silicone sock itself.
It is a quite clear substance that hardens to a glass like substance.
The sock itself has lost substance
I am thinking about replacing the sock with some aerogel sheet.
Agreed, there is something else going on. Leaking plastic or maybe bad kapton tape (Edit: I’ve seen some cheap stuff from China that was like asbestos with a yellowish clear plastic tape on the outside).
It is a genuine micro swiss sock and I printed only PLA, mostly at 190°C, max. 220C.
Took some time until I realised it came from the silicone sock.
Maybe it was a monday piece, I’ll try it first with a new sock.
While silicone socks are good as an insulator and protector for the heat block, I believe they are considered a wear item by the manufacturers that use them. There are many online listings for 3d printing silicone socks on amazon, ebay, and even walmart. I think the repeated heating and cooling of the sock causes them to eventually deteriorate such as shown by Erik.
This reminds me of the old saying “nothing lasts forever”.
That’s a good question and why I find the OP’s issue is puzzling. Outside of accidents, I cannot imagine needing to ever replace one. But, because they are so inexpensive, I keep a few spares on hand. I think any thickness can work provided there is clearance for it (especially between the sock and the print bed). My spares are OEM equivalents so I don’t need to PID tune if I’m in a hurry, fwiw.