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snowygrouch

Dual extrusion head offset gcode

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Hi,

I am trying to sort out my dual extrusion, (I am not using Cura to make

the code directly, so please dont tell me to just use Cura).

There are alot of conflicting stories on various websites about how to

do this in the gcode for Marlin.

http://reprap.org/wiki/G-code

This one says:

"Example: G10 P3 X17.8 Y-19.3 Z0.0 R140 S205"

Why is it assigning the printhead as "P" ?? Everything else I have seen always

says you should use "T" ?

Since the head offset cannot (I think) be set in firmware, it must be done

internally in the slicer (like CURA), or by GCODE if you want to use

a different slicer like Kisslicer. I dont always want to use CURA so would be

good to have opinions on currect GCODE syntax.

Also M104 seems to not be working, its still waiting for heatup. Has M104 been

deleted from latest firmware.?

Ideas ?

Regards

C.

 

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In Marlin, G10 is nothing to do with head offsets - it triggers a retraction. (Didn't we have this conversation before? :-) )

The correct code is M218 Ta Xb Yc, where a,b and c are the extruder number and the x and y offsets respectively.

You should then be able to change extruders with T0, T1 etc, and have the print position be correctly offset.

Not sure about M104... I'd assume it should still work as before, but I don't have the latest code in front of me at the moment.

 

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