I've run into an interesting issue when trying to print with G code generated by Slic3r I built from GIT source.
What happens is after the skirt loops are printed, Smoothie retracts, moves to begin printing the actual piece, and then freezes. I've tried printing several things and every time the outcome is the same.
Looking at the GCode it looks like the freeze may be occurring due to a negative feedrate value. I'm not a G code expert, but am I right to assume negative feedrates are invalid?
Has anyone else experienced this when using Slic3r built from source?
Here's a snippet of the offending G Code.
G1 Z0.450 F7800.000 G1 X129.694 Y121.278 F7800.000 G1 Z0.250 F7800.000 G1 E4.00000 F6000.00000 G1 F-360.595 G1 X106.300 Y121.278 E5.15010 G1 X106.296 Y120.642 E5.18137 G1 X109.185 Y120.639 E5.32340 G1 X109.730 Y120.572 E5.35041