Why arent polygons dimensions parametric?

[nikkwong0]

Hi, I want to know why parameters for polygons (like radius) are not parametric (i.e. don't respond to changing parameters). And if this support is going to be added.

Huge bummer for my project. I'm basically brand new to fusion 360, and seeing the first tool I try to use not work as expected leaves a very bad taste in my mouth. Workarounds would be nice too. 

Thanks. 

[TrippyLighting · Accepted solution]

The implementation of the sketch polygon tool is really half baked. IMHO, either it should be corrected and made parametric, or it should be removed.

Anyway, I posted a hand made solution in this thread. It's really not that much work.

[nikkwong0]

Hm, it may be true that it's not that much work. But it definitely does not make me feel like this program is going to be easy to work with in comparison to Inventor. 

And ****, if you have a lot of polygons in your design then this is extremely tedious.

Thanks for the help. 

[nikkwong0]

Unfortunately, with this technique you can not copy / paste the polygon onto other planes and keep the relationships. Try copying the polygon onto a new face and changing the diameter, it completely breaks the shape. 

So fusion 360 is kind of dead in the water. What a frustration. 

[TrippyLighting]

Unless you want the number of sides of the polygon parametric, you can perfect;y fine parametrize the diameter of the polygon individually or for a larger number of polygons. You simply have to dimension the circumscribed, or inscribed circle after creating the polygon. That dimension is parametric!

Simply sketch your polygon starting at the sketch origin. Then sketch a circle and either snap it to an outer corner or create a tangent constraint between it and one of the segments of the polygon  and dimension.