[Ultimaker 3: Best way to extrude 100mm for e-steps calibration.]

Well you can probably just put these gcodes into a text file, save as move.gcode and put it on the sd card and print it:

 

M302 S0G92 E0G0 E100

 

The first command allows cold extrusion (moving extruder without heating up nozzle first).

The second one tells the extruder it is at position 0.  The last one says to move to position 100mm.

This assumes there is no load (the filament is only part way into the bowden).  If you plan to actually extrude at the same time then you need to slow it the hell down using "F" or feedrate.  You probably want it to take about 1 minute so that would be 100mm per minute or F100 and so change the G0 command to this:  G0 E100 F100

I think that should work.  There is an "ultigcode" mode on the UM2 - not sure if UM3 still uses it - I haven't paid attention.  If it is in ultigcode mode then the E100 will move 100 cubic mm.  I'm pretty sure the UM3 doesn't use this volumetric method.  Most printers don't.

Or if it were me I would ssh into the printer.  First put it in "developer" mode on the front display.  Note the IP address while doing that.  Then download PUTTY and ssh to that ip address.  username is root password ultimaker.

Then do:

 

cd /usr/share/griffinpython3 command_util.pysendgcode M302 S0sendgcode G92 E0sendgcode G0 E100

 

 

Thanks I'll go with the ssh method, since I also prefer it.

Thanks all for the quick replies.

[Ultimaker 3: Best way to extrude 100mm for e-steps calibration.]

Hi,

I'm wondering what's the best/easiest way to make the UM3 to extrude 100mm for E-steps calibration.

Thanks.