inner height in mm

profile of the teeth/belt

number of teeth

diameter of the axle

create a ring gear with the belt being pushed against from within

overlap of top rim (zero for none)

Thickness of the material [mm]

Burn correction [mm] (bigger values for tighter fit)

Format of the resulting file

Label the parts (where available)

Print reference rectangle with given length [mm] (0 to disable)

Width of tabs holding parts in place [mm]

Add a QR Code with link or command line to the generated output

Style for inner corners

Spacing around parts (multiples of thickness [: extra space in mm])

Print surrounding boxes for some structures