Custom Gcode with relative coordinates: extrusion?

[lars-busack 0]

Hello,

I am planning to print some tests in mid-air with a custom gcode.

When i use relative coordinates (G91) in the gcode, will this also affect the extrusion length?

So, is it possible to just use constant values for E like this?

G1 X 5.00 Y 0.00 Z 2.00 E 0.0024

G1 X 5.00 Y 0.00 Z -2.00 E 0.0024

G1 X 0.00 Y 5.00 Z 2.00 E 0.0024

G1 X 0.00 Y 5.00 Z -2.00 E 0.0024...

Or would i have to do it this way?

G1 X 5.00 Y 0.00 Z 2.00 E 0.0024

G1 X 5.00 Y 0.00 Z -2.00 E 0.0048

G1 X 0.00 Y 5.00 Z 2.00 E 0.0072

G1 X 0.00 Y 5.00 Z -2.00 E 0.0096...

Thank you very much!

Lars

[nallath 1,124]

I think it's the first option.

[Dim3nsioneer 558]

By default it's the same as the mode as the first three axes. But you can change it for the E-axis only by using M82 (absolute) and M83 (relative).

[peetersm 124]

cool idea, post pictures when you get it printed.