Comment on Help please: heating block gooed up with PLA
Fenderfreek@lemmy.world 2 days agoSort of. As the previous poster pointed out, you need to make sure it’s assembled in a way that the nozzle is seated against the heat break inside the heater block, not against the heater block itself. You’ll have to do a complete disassembly to clean it up properly, and you may need to run a tap through the heater block to clean the threads, but when you assemble it, make sure that you back the nozzle off a turn or so, assemble the hot end so that the heater break is bottomed out against the nozzle, then heat it all up and torque the nozzle up snugly to the heatbreak. There are YouTube vids that will demonstrate hotend assembly better than I can explain it, but solid nozzle to heatbreak seal is critical for preventing this
Prunebutt@slrpnk.net 1 day ago
I’ve cleaned the outside, but I don’t know what you mead by that. Could you explain how I fix the threading?
Fenderfreek@lemmy.world 1 day ago
Most nozzles and heat breaks have M6x1mm threads, so they’re pretty standard (double check yours specifically). Lightly chasing the heat break threads with a tap should clean out any gunk and ensure that your heatbreak and nozzle threads engage properly when you reassemble everything again, and that things get torqued together correctly.
Prunebutt@slrpnk.net 22 hours ago
Sorry, not an english native speaker, so I didn’t know what a tap was. Good thing that context made me not google myself to death with that non-SEO friendly term (it’s the drill thing that cuts threads inno holes).
A new heating block is a bit cheaper and I got no use for a tap, so I just ordered a new one. Maybe I give the torching method a try, too before it arrives.
Anywho: I understand the hotend way better now. I guess that’s worth the 4,50 in a new heating block. (:
morbidcactus@lemmy.ca 3 hours ago
It’s a right of passage, I switched all my hotends to fixed blocks, accidentally loosened the block once on the older style hotend after torquing correctly and enveloped the thing in petg, it kinda vitrified too or something in the heat, was like glass so no getting that off.
Generally, blobs off of your hotend, estop it and take a look, that’s a huge tell for a leak.
Worth keeping a few spares around, at least for stuff like nozzles, blocks, heaters and probes.
Fenderfreek@lemmy.world 21 hours ago
I see. I probably should have been more specific, sorry. If you do try torching the parts, be very careful with the heater block. They are usually aluminum, and can melt much more easily than the steel and brass parts.