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Cannot make a rack and pinion
daniel_ramirez154
Member Posts: 2 EDU
https://cad.onshape.com/documents/3c16bf67fdbb0dcdfa5ccc50/w/055c0b5a7bf71dd581774b01/e/ff548af1f3aa1c27b3f89bf0
On the left gear and middle vertical gear on the assembly whenever i use the slider and revolute mate it gives me an error. Any way i can do this?
On the left gear and middle vertical gear on the assembly whenever i use the slider and revolute mate it gives me an error. Any way i can do this?
0
Answers
- Base (a convenient frame of reference to mate the other components to)
- Pinion
- Rack
Note that I added a mate connector to the rack in the Part Studio, with the Z-axis oriented along the center-line (for the slider mate). I added a similar mate connector to the base plate in it's Part Studio (also oriented in the direction that the slider mate will move).- FIX the Base Plate (to lock it in place)
- Apply REVOLUTE mate from Base Plate to Pinion
- Apply SLIDER mate from Base Plate to Rack (using the custom mate connectors created in the part studios)
- Apply RACK & PINION relation between the REVOLUTE and SLIDER
Back in the Part Studio I edited the Z-offset on the RACK mate connector to get at least crude visual alignment between mating teeth in the assembly. In the gear relation I entered 0.55*PI inches for the DISTANCE PER REVOLUTION (because 0.55in appears to be a reasonable approximation of the "pitch diameter" of your pinion).