a couple hrs with the roll on the holder and it started to skip at the feeder again
gave the tension screw 1/8 turn c/c and put the filament in the Sunlu dryer at 35c
ran all night with no skipping
got the machine dialed in so the feeder doesnt skip at all
but 1 corner lifted
i had peeled 2 bad initial prints off and some of the glue stick
put a good layer of glue stick down and a thin table cloth over the machine
see if that fixes it
the prints shrink
if i want a 3.9mm radius hole i have to enter 4.3mm to get 3.9 off the final print
same goes for height
the aluminum adapter i made was 2.5 inches/63.5mm
the print is designed at 66mm to allow for shrinkage if there is any
it gives me more room in the coupling
this failed print is 3mm thick
now i have a spacer if i need it
but its all dead nuts center and tight
had to pull the table cloth off, filament was getting too warm and started skipping again
i had bought this extruder feeder kit, it has a single brass 40 tooth gear
https://www.amazon.ca/Creality-Capricorn-Upgraded-Pneumatic-Bed-level/dp/B081DN6RM2/ref=sr_1_16?dchild=1&keywords=ender+3+v2+feed&qid=1632067077&sr=8-16
im going to buy this one, looks like stainless dual gear extruder feeder, it also has that yellow spring which is the same as the upgraded springs
https://www.amazon.ca/WINSINN-Extruder-Creality-Upgraded-Aluminum/dp/B07SY745CF/ref=sr_1_13?dchild=1&keywords=ender%2B3%2Bv2%2Bfeed&qid=1632067077&sr=8-13&th=1