see

https://www.academia.utp.ac.pa/sites/default/files/docente/72/material_de_apoyo_para_asignacion_4_ecuacion_de_lazo_cerrado_para_una_leva_de_perfil_circular.pdf

formula used:

Capture.JPG

did not see your post until today, after a bit of research on cams, (not my field, I'm carpenter and estimator)

need only the rotation and the formula does the rest

automaton demo.skp