problem with coupling "camma"

[Claudio2606]

start with a presentation being my first discussion:

my name is claudio, I am a 26 year old boy who studied at i.t.t.s alessandro vault (perugia), then continue with a specialization through its (superior technical institute) always at perugia, here I have done hundreds of hours of cad. however, my first work experience was as a turning machine for about 3 years, as before starting the cam (current ambition) I wanted to experience cn machines.
Currently working in technical office as a cad designer (use solidworks 2022 and autocad lt 2019), as the company produces oil plants but does not possess cn machinery, all mechanical processing is carried out by external companies, moreover, the company works with an external designer for more complex works.
that we pass on to the problem:I’m fixing the company pumps, as the external designer loves to work in multi-body, I’m remaking all the pieces by assigning to these a respective code, this to have a better traceability of the individual pieces, also because first with the same code responded 5-6 different components and this created huge problems for orders etc...
I came across the cam coupling (image constraint_camma-1.png), the problem is that turning the elliptical rotor (the pink piece corresponding to the cam path of the function), the point of the function sometimes crosses the elliptical rotor (image constraint_camma-2.png), nailing permanently.

I think I understand why: It is possible to do so as the tip is a circle the cam path can be tangent both above and below the circle of the spike, thus crossing the body.

I already tried to divide the point but the function does not recognize me anymore as it is no longer a circle.

How could I solve this?

 

[teseo]

Hi.
I don't have much clear the mechanism you've done, it can be as you say but it seems to me to see that the cam is formed by two half-circumferences and by two planes, according to me it is there the problem there is a transition too dark, I would try to smooth those planes, moreover it seems strange that you can't change the shape of the spike, try to draw a semi circumference, or to put only a sketch point in the center of the tip.
see below the definition by soloworks. Hi.

couplings of tips​

a pair of props is a tangent or coincident coupling type. allows to couple a cylinder, plane or point to a series of extruded tangent faces like those present on a cam.
the following image shows three components in contact with the cam as it rotates.