This PR adds a rack() module to the involute_gears() module. It is basically a section of the rim of a gear of infinite teeth.
It has a subset or the gear() arguments:
number_of_teeth: will affect the length of the rack.
circular_pitch or diametral_pitch: must match that of the gear.
pressure_angle: must match that of the gear.
rim_thickness: there is no disk or hub so this is the only thickness.
rim_width: width of the flat ribbon behind the teeth.
clearance
flat
The other ones do not make much sense for a rack.
A rack and a gear will match if they have the same pitch and pressure angle. The origin point or a rack is set to the middle point of the "pitch line", so to align it with a gear, just move it to the pitch circle of the gear.
I've added a small rack to the test_gears() module, but feel free to change of remove it if it is not appropriate.
This PR adds a
rack()module to theinvolute_gears()module. It is basically a section of the rim of a gear of infinite teeth.It has a subset or the
gear()arguments:number_of_teeth: will affect the length of the rack.circular_pitchordiametral_pitch: must match that of the gear.pressure_angle: must match that of the gear.rim_thickness: there is no disk or hub so this is the only thickness.rim_width: width of the flat ribbon behind the teeth.clearanceflatThe other ones do not make much sense for a rack.
A rack and a gear will match if they have the same pitch and pressure angle. The origin point or a rack is set to the middle point of the "pitch line", so to align it with a gear, just move it to the pitch circle of the gear.
I've added a small rack to the
test_gears()module, but feel free to change of remove it if it is not appropriate.