Additional Extruders Not Primed when using AMF

[ajayre]

Sorry if this is a misunderstanding on my part. Please see the test AMF file [1]. This contains two 20mm cubes, one stacked on top of the other. The lower cube is printed using extruder 1. The upper cube is printed using extruder 0.

When I examine the output from Slic3r 0.9.8 in Repetier Host I only see extruder 0 being primed by printing the outline. After extruder 0 is primed extruder 1 is then used.

Slic3r config is at [2]. Windows 7 64-bit.

Andy

[1] http://www.britishideas.com/forumimages/TwoCubes-2.amf
[2] http://www.britishideas.com/forumimages/config.ini

[alranel]

Put more skirt loops, like 2 or 4: they will be alternated.

[ajayre]

I set the skirt loops to three. Repetier-Host shows two loops and they are both generated with extruder 0. Please see:

http://www.britishideas.com/forumimages/TwoCubes-2.png
http://www.britishideas.com/forumimages/TwoCubes-2.ini
http://www.britishideas.com/forumimages/TwoCubes-2.gcode

[spac3man]

I am also experiencing this issue.

[alranel]

Are you sure it's not a Repetier-Host rendering issue? I just tried to slice a cube with --infill-extruder 2 --skirts 4 with the second extruder translated for clarity, and while Repetier-Host doesn't show any skirt for the second extruder, another preview tool (gcode.ws) does:

[spac3man]

We are using Slic3r and Marlin. I will re-slice and verify gcode again.

[repetier]

The host has problems with retractions between different extruders which can result in the length of the previous retraction getting ignored, which is in this case one skirt. This is only a rendering bug and has no effect on the real print.

The problem is fixed in the upcoming Host version 0.85.

[ajayre]

Now able to print with three extruders. Using an AMF file that uses all three extruders and Slic3r 0.9.9 all three loops are printed using extruder 0.

[alranel]

@ajayre, currently you need to configure more than three loops. This is not good, I know. I'll close this one as that issue is tracked in #966