A Standalone print is different from a print with host

Vertex 3D Printer Vertex - Printer software (repetier, slicer, ...)
1

hi,

I use s3d and my prints is very good but when I export my gcode to run the vertex in standalone mode, the print is really bad.
Wrong size, wrong extrusion flow, only temprature seems to be good …

Someone could explain to me why ?

Thanks