Looking for a named parameter for gear ratio that I can use in a relation

[mburlone]

I have an assembly that includes a Gear Pair connection defined in the Mechanism Application.  The models of the gear components themselves are adjustable based on a few input parameters like tooth count, and module etc.

However, if I change the tooth count of either of the gears, I have to manually re-input the new gear ratio in the assembly model.  I'm looking for a way to relate the gear ratio in the assembly to these same component parameters, but I cannot find the name of the variable to use for this gear ratio.

How do I find the names of the dimension/parameters in a GearPair connection?

Thank you,

[TomU]

To the best of my knowledge, most of the mechanism "stuff", including gears, cannot be controlled outside of the interface where they are created.  See https://community.ptc.com/t5/Creo-Parametric-Ideas/Mechanism-Set-Gear-Pitch-Circle-via-Parameter-or-Relations/idi-p/456363

[mburlone]

Hmmm, that's frustrating; especially since there are parameters for more obscure variables in other types of connections.  In the relations window under Local Parameters, if I filter by Current and all sublevels, I can see parameters for kinetic friction and restitution of each of the joints.  Even the coefficients of servomotor profiles can be found here.  But sadly, I see no such parameter for gear ratio.

[pausob]

I checked the same as you and came up with the same lack of results.  No parameters accessible for the gear connections.  This software should be called "Creo (mostly)Parametric"