add modifier objects , custom gcode , feature bug,

[Flyordye]

1. There's a issue with how your using gcode or slice resolution for arcwelder , the way this works currently isnt the same way and messes up geometry while reducing or increasing slice resolutions , thus if possible add a arc welder mm distance factor to the slicer so it can be controlled independently because only some curves get subjected to arcwelder while others are ignored ---

2. it would be nice if modifier objects could issue custom gcode at the start of each layer based on the objects modification , if 1 object could be printed at 125% speed and another at 150% speed or fan changes to each peice on a plate could be very useful and rather required for testing purposes

[Flyordye]

looking into it the gcode arcs has been changed and updated so might be that as a issue