Hi
I have just replaced the complete hot end on my UM2, so thats nozzle, teflon spacer, hot end isolator and spring.
Previously when re assembling the components I have screwed the hot end isolator into the nozzle as far as it can go. This time with the new components I have noticed that if I do this I then have problems with extrusion when inserting the new material. I slackened off the hot end isolator by about a 1/4 turn, this resulted in the filament flowing.
Are there any detailed guides on what the various settings/gaps should be on re assembly of the hot end?
Thanks