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Hey guys, im newer to debugging|troubleshooting printers and needing some advice help.

My printer will heat up and start to print, but within the first side of a skirt it will just start putting out material, and will leave like spots. i have tried different files that printed good before, as well as taken the thing apart to make sure they was no blockage... When loading pla into it, it seems to flow great, its seems though when it starts to actually print it has its "hissy fit". Any ideas?

Things ive done so far:
Tried different files that once printed
Tried different temps
taken head apart and cleaned it
tried different filament just in case a bad spot|roll
replaced the Thermocouple
(tried to replace Heating Cartridge but it would not fit in head, was to large )