how to preheat and extrude without a PC

[mrbi11]

You can preheat with the LCD menu, but its lots of steps.
I could not find a way to actually extrude.
Create files below.
BE SURE ALL GCODE IS UPPER CASE!
The repetier host upcases for you, so its easy to think case doesn't matter. Got me anyway.

PREHEAT.gco:
M140 S80
M104 S230
Insert your heats at the Sxx parameter.
These were for my ABS.

xtrud10.gco:
M109 S230
G91
G1 E10 F100
G90

xtrud100.gco:
M109 S230
G91
G1 E100 F100
G90

Change length with Exx parameter.
DON'T SKIP the extruder wait/heat command,
or it will try and extrude while solid.

PS
xtrud100.gco is great for calibrating steps per mm, which manual says is 92.65,
but tests put mine at 100.7.
first warm it up and extrude a bit till filament is coming out, so its in printing state
without any air gaps.
Mark filament 10 cm above extruder, and at 11 and 12 just in case yours is going too far.
Run xtrud100.gco, mark should just get to extruder.
If not, calculate actual measured distance
Multiply your steps-per-mm by 100/measured and save it to eeprom.

[Eaglezsoar]

Thanks for posting this, tried it earlier and it works fine.