Circular Pattern, varying spacing between each patterned feature

pete_datcuk

Trying to model a cylindrical drill index.  Each level will hold a number of drills, all of different sizes.  I have figured out how to vary the size of each hole in the pattern.  Since each hole is equally spaced, the web between each hole grows thinner as the holes grow larger.  I'd like to increment the spacing between each hole in the pattern in a similar manner as increasing the hole size.  Is this possible?

Thanks,
Pete

S1mon

If you can write an equation to describe the dimensions, you may be able to do this with patterns. The trick is that sketches will only do certain types of recalculations even when "apply per instance" is used in the pattern. You might even end up doing something where you extrude some features and then transform the body based on a calculation, and then use boolean to add that body to the main one.

https://www.onshape.com/en/resource-center/tech-tips/tech-tip-how-to-use-variables-in-patterns-to-vary-features

I've done things with "linear" patterns where the pattern distance is basically doing nothing (other than acting as a for loop), and it's really the equations which are driving.