Findings and solution for the Snapmaker J1 clogging problem

[Mechanikus]

@Wombley

I recall it was tricky getting the orientation of the heat block correct while also getting the right depth into the block.

I also recall I didn’t tighten/heat the block properly. Came back to find the left nozzle was oozing from the top once while printing, but caught it in time to not be a big, big mess.

Yes, this is exactly the risk when you add three separate threaded items on top of each other, which is why sonewhere in this huge thread a corresponding warning is buried if I recall correctly - and why I chose to use the spacer shown in the presentation on top instead

@Wombley

I can’t confirm this solved it, but I then started preheating the bed. Theory being it was due to the bed and hotend starting at the same time by default start gcode, but the bed takes much longer.

Hunh… you mention something there which I never wrote about. One of the very first things I did when I created my Prusaslicer configuration based on the initial stuff @McGybeer and @macdylan created about two years ago was to change the start gcode to “let the bed heat up to 5°C below target temp, then let the bed and the hotend(s) heat up to target temp” - easy to do in Prusaslicer since you can use the internal variables, other slicers are probably not so flexible.

And then all the stuff that lead to this thread here came…