Feature request: Filament used per extruder #16

verveh opened this Issue Oct 3, 2013 · 6 comments


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verveh commented Oct 3, 2013

Great viewer!

But there is one feature missing for me...

I have a dual extruder 3D printer, and use water soluble PVA as support material, which I store in a drying chamber to prevent it from getting moist. I then transfer the estimated amount of filament needed to another spool before each print. However, it is hard to estimate how much I need and I therefore always use too much filament to be on the safe side. It would be very helpful if I knew how much filament is used per extruder.
Could you add that feature?

hudbrog commented Oct 8, 2013

Implemented, uploaded to gcode.ws
Will only support gcode where different extruders are marked by different axis (i.e. E,A,B,C) Wan't understand extruder change commands.
Since I don't print with dual extrusion - I have no way to actually make sure it works, but from first glance - seems legit.

@hudbrog hudbrog closed this Oct 8, 2013
verveh commented Oct 16, 2013

Hi Alex,

Thank you for your prompt change! What a service…

However, in my case the extruders are not marked by different axis, but the system uses change commands. I have no idea how to change a gcode file to match your application.
As you mentioned you were not able to test, I’ve enclosed a gcode file that uses 2 extruders and change commands… Maybe you can find the time to see if you could support that as well. As far as I know, most 3D printers use change commands for multiple extruders. I use slic3r to generate gcode.


Ok, I'll take a look. I was using kisslicer for tests and it generates different axis names =)

verveh commented Oct 16, 2013

Great! Did you receive the gcode file I tried to attach?

@verveh verveh closed this Oct 16, 2013
@verveh verveh reopened this Oct 16, 2013
verveh commented Nov 14, 2013

Hi Alex, any news? Did you get a chance to take a look at handling extruder change commands to calculate the used filament per extruder?

sirkha commented Oct 20, 2014

+1 on the implementing multiple extruders that don't use different axes.

In addition to showing amount per layer, it would be very useful to allow setting the offset and use a different set of colors for each extruder, so you can see where things are actually lining up on top of each other on systems where the two extruder's are not in the same place. Since I would find this useful, I might fork and work on this if I have time. Do you have any recommendations on where to start?

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