No extrusion from second extruder

robertalpha

Hello,

I have encountered a problem printing with the second extruder of my 3d printer:
When I want to print a part (with g-code generated by slic3er) using extruder 1, with support material using extruder 2, the printer only extrudes from extruder 1, all movements for extruder 2 are made, but no material is extruded. When I extrude manually, both extruders work fine.
When I write a small g-code-file myself, the print with both extruders also works.

Is there any setting (in slic3er or the firmware?) that could explain this problem?

Thanks,
robertalpha

Repetier

In SLic3r print settings is a tab multiextruder. There you can define which extruder to use for support. Default is 1, which is your problem.

robertalpha

I do have selected extruder 2 for support material, and the printer makes the correct movements for the second extruder, including the offset, but it don't extrude any material.
In g-code, the commands for selecting the two extruders (T0 and T1) are at the correct positions, and the E parameters in print commands are also correct

Repetier

Is extruder 2 hot? It will not extrude if temp. is below min temperature. 

Also have you tested extruder 2 manually to see if it was configured correct?

robertalpha

Ok,
I have found that the feed rates for extruder 2 are way to small, and started a new discussion in the slic3r category
Thank you so far