Silicon socks?
Just built my 5 head and took ~1hr of actual assembly/calibration. The extruder boxes had silicon socks included, but there was no instruction on how to install them. I left them off as I’ve never used them with my mk3, and all the instruction pictures didn’t show them. Anyone know how to fit them or if it’s worth adding them?
RE: Silicon socks?
Just push the sock over the heaterblock and check that it sits evenly around the heaterblock. Don't know if you really need them, but the silicone is much easier to clean than the bare heaterblock when using sticky stuff like PETG...
RE: Silicon socks?
Just use the right tool through the face of the head to loosen the nextruder nozzle so you can drop it down- it makes it a lot easier to get the sock on and square. I’m a big fan of them as they keep the nozzle from getting too caked on- from little goobers, to when the print goes full crazy spide.
RE: Silicon socks?
I’ve read complaints the socks block the part fan so for now I’ve left them off. I’d welcome feedback from others. It’s odd Prusa make no mention of them.
RE: Silicon socks?
Here is a modified design of the fan shroud. I printed it, but haven't had the time to test yet.
RE: Silicon socks?
The socks are a good tight fit that I don't think will sag or look like they're about to fall off like the ones that you can buy for the MK3.
Installation is much easier if you disconnect the two wires and completely removing the heater assembly from the extruder. Or at the very least, disconnect the two wires so you can pull the nozzle out of the extruder, but not completely pull the wires out from under the fan 'hole'.
Seems everyone has a bit of stringing to fix at the start because temps seem to be 10C too high by default. That alone makes the silicone socks worth. One caviat to that is if you're using the adapter with a v6 nozzle, you may want to abstain the sock so you can more easily spot possible leaks.
XL-5T, MK3S MMU3 || GUIDE: How to print with multiple-nozzlesizes do read updated replies || PrusaSlicer Fork with some flags removed || How Feasible is Printing PETG for PLA supports very
RE: Silicon socks?
I only have an MK4, but as we have similar extruders, I guess I can chime in.
I once attached such a sock to my hotend, and I got unbelievable stringing issues - yes, I had thought of configuring the sock in the firmware, but that didn't change much. I did a number of test prints, and my conclusion was that the socks probably aren't that good of an idea without further tweaking...
@mvikman : it would be really cool if you could report your findings regarding the shroud!
RE: Silicon socks?
I always install the socks. Protects the hotend from the cooling fan. On both my nextruders the nozzle was installed square-on and the socks didn't fit without fouling the fan shroud. I needed to loosen the nozzle, twist it clockwise a few degrees, then retighten the nozzle. This gave it enough room to fit the socks.
RE: Silicon socks?
I also just turned the nozzle but how do you retighten it?
RE: Silicon socks?
I also just turned the nozzle but how do you retighten it?
There is a hidden grub screw as in Step 13 of these instructions https://help.prusa3d.com/guide/how-to-replace-the-prusa-nozzle-xl-multi-tool_506481 and pay special attention to the warning to not overtighten.
How did you turn it without loosening the grub screw first?