In this box, the highlighted check box causes repeating feedrate “F” on every line. Without this checked, Estlcam will guess whether the F is needed or not.
Yes I agree, I think this is your problem. This is defined in the box that lists all your tools. 1200 mm/min means you have 20 mm/sec in your F(z) column which is much too high. Change F(z) to 8 mm/sec and you wont need search and replace to get 480 in your gcode. (Or even slower might be better.)
I did fresh install of latest version Estlcam 11.115.
Brought in a rectangle dxf, holed and pocketed and corner relieved. Gcode was proper all z feeds were as specified.
The problem is the handling of stl files. I brought one in and upon examining the gcode generated from free machining it doesn’t output proper Z feeds.
I realize this is a problem with Estlcam but perhaps you could tell Christian he may have a Z feedrate problem in stl free machining.
@christian-knuell If your not to busy we have two open bugs for you. The one above Z speeds not correct in STL free machining and V carve points are backwards starting from the point not the open pocket at least when using a flat endmill for the roughing.