Hi @Joseph_Chiu I have a bowden feed and when it blocks (as @Tim_Sills does) the extruder starts to chew the filament - all quite visibly a long way from the head.
I have a fan pointed at the bit above the hot-end and initially there was an issue where there was a wire blocking the flow of air - but that is all clear now.
Right - so if it’s chewing up the filament, it’s likely because there’s no space for the filament to go under the nozzle – so just let it air print a bit until it goes up a couple layers and then let it resume printing.
@Rex_Bigger are you sure that your extruder can do .040 layers. that is crazy thin so flow rates are low. The extrusion looks clumpy. I dont know what your hot end is but .04 mm requires some careful consideration on flow rate.
@Rex_Bigger is your extruder geared? cuz if it isn’t it is quite likely you can’t reliably print at .04 mm per layer. I have never printed below .1mm
I can also vouch for @Joseph_Chiu 's reference cause at one point my bed wasn’t level and the head was smashed in too close to the bed and you’d see something like this where it looks like it’s under extruding or even tearing across layers. I releveled everything but still had the funky extrusion issues.
What temperature are you extruding at? And with what material?
@Camerin_hahn I’m printing at .16 layer height. The printer is apparently capable of going to .04 but if like to get a working print out first.
@Evan_Gillespie 190 with PLA
.4mm layer would be a better starting size to get started after the jamming is fixed but is the small size you are using too much back pressure.
Its bed levelness… Run your extruder head manually over the area (x,y) and observe the change in gap.
It’s more than just bed levelness. Need to try more things tonight.