please could somebody be VERY specific here, I am nervous about poking around randomly and would appreciate some very simple to follow instructions
i know to put my multimeter on 2V DC and put the negative lead on the negative screw of the power connector
but where exactly does the positive end go? (from the photo in the instructions it appears to go into the hole in the circuit board, but this does not give any reading) and then turn the screw to get 0.45v output)
everything else seems to be okay - i just need to complete this before starting printing
just the reassurance I neede to finish the job - first print started - but killed after a few minutes - i think i have issues with bed height and filament feed - but the motors all sound healthier and seem to run smoother
me - no filament coming out of nozzle at all - i have a 1kg reel of 3mm PLA - i can extrude manually but this does not happen when i do a print run - i know tgat i have to feed it initially - but it does not seem to auto feed aftef that - any tips - followed instruction to the letter
Check the gears make sure they are not to close
Check the small gear so it’s not rubbing on the motor
Make sure the hobbit bolt is not to tight
Try fighting or loosening the pressure bear spring
i have had to replace the small cog, it WAS too close to the big cog and the screw fastening inside had become strained and loose as a result all is good now
I am printing at 190 c with a bed temp of 50 c
it is a protracted process starting the warm-up and then slicing and then checking on the heating progress before printing.
my only remaining issue now is that i am waiting for a glass cover for the bed, as many posts have stated, my bed has crowned (not really a dome) but has a 1.5mm differential between the sides and the centre.
one small and temporary solution i have found is to the software reporting a >600 c temperature reading for the bed is to insert a VERY thin piece of stiff plastic packaging material 10mm x 10mm (folded once) between the cardboard of the bed plate and the bed frame - this eliminates the problem imediately and has stayed that way since.
i have tried printing on my uneven bed, i have had to adjust the starting height in slicer to 2.5 mm and have had some success printing at the edges of the bed dome, sometimes the print head becomes grounded and the software reports an error - other times i am more fortunate.
oveerall, i am amazed by the effort required o build the unit - but i feel it has been a valuable lesson and will serve me well if i need to carry out and maintenence or repairs in the future.
