It is referring to this last line in the gcode. The program is looking for a notation similar to this:
“(PS120)”
The 120 would signify the Program Speed of 120. Your speed may be different but it is looking for that format.
It is also looking for something similar to this in the beginning of the gcode:
(v1.6-af) or (v1.6-sc) [where “af” means AutodeskFusion and “sc” means SheetCAM]
G90 G94
G17 [xy plane]
G20 [inches or G21 for metric]
H0 [Turn off THC
Make sure you have the correct post processor loaded on your computer and then tell Fusion 360 where that file is located. This link will show you where to find the post processor file on the Langmuir site and the graphic will show where you would enter that in Fusion 360.
