I'm in middle of setting up my Kossel Mini with 5.18:1 stepper motor and Johann's extruder but running into an issue when calibrating the extruder. Using x16 stepping I decided to start out with M92 E465, and when I run a check using M501 I see the calibration changes are taking hold. My issue is that at 465 I'm seeing about 97mm vs 100 when I send G1 E100 so I make a change, say 466 vs 465 and sometimes the number will increase the filament travel distance and other times a higher number might decrease the filament fed.
I know it's not my testing method because if I leave the extruder at say 465 and run 3 tests each time I will get a consistent 97mm. After doing a few google searches I have read of others having this issue but so far nobody has offered up a solution.
I also find that when making long movements all my stepper motors sound as if they make a brief pause with a tone change every few rotations but it's so quick I can really only detect the sound change.
Edited 2 time(s). Last edit at 10/25/2014 09:21AM by ChrisT88.
