About E-step default value and its change

[Food24 0]

Dear all,

I'm using a printer Wasp mod. Delta 2040 equipped with clay extruder. Also, Marlin firmware.

As reported in the firmware, the default values for X,Y,Z,E axes are:

* D e f a u l t A x i s S t e p s P e r U n i t ( s t e p s / m m ) * O v e r r i d e w i t h M 9 2 * X , Y , Z , E 0 [ , E 1 [ , E 2 [ , E 3 ] ] ] * /

#define DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 4000, 500 }

my questions are below: 7

1. The value 500 is on mm/min. if so, the acutal value should be 8.33 step/mm of filament in a time of 1 s.

2. If I leave on CURA software an -Estep=0 this means that i'm using the default value of the firmware that is 4000 ?

2. What's happen if i change the E-step value on CURA software for instance at +0400 ?

Can you help to explain me exactly how change the E-step when I modify it on CURA software ?

Thanks

Food 24