Step Motor - calibration weirdness

Spark

I started with 202ss/mm as Evalue. Used Codes M83 (relative mode) - G1 E100 F100 - send 100mm -  M503, M92 E###.# ( send new E value) - M500 ( save that shit) -  M503 ( did it save?)

I did the test for 100mm and had 8 extra so I changed the E to 219.  Did the test again and had 23 extra. set the value to 284 and now had 15 extra.  Set the E to 334. did the test again. Had a HUGE amount of UNDER extrusion.  Turned the printer OFF walked away.  Came back . Printer shows original value when running a M503 (202) 

Adding the Eagain 334 did test again and I again have a HUGE amount of under extrusion - it only extruded half the amount it should..  .  This is weird...  I thought a HIGHER e value would mean MORE extrusion. I seem to be getting less? 

Going to flash the new firmware and try again all over again..  This is just.. 

Spark

I am really frustrated!  WTF I don't get this. 

The printer shows me: M92 X160.00 Y160.00 Z1600.00 E279.00
I have gone all the way up to E430! 

There is ZERO consistency.  Using pronterface, tried simplify 3d, tried matter hackers for the interface.  

Spark

Someone please help! 

Samuel Pinches

Try calibrating with the filament extruding into air, not into the nozzle, so there is no chance of the filament slipping and giving erroneous results.

Spark

Ok I will try that