How to make a circular pattern of a revolve?

to_ca

I am trying to create an enclosed gear to hold a beaded cord. I can create a cylinder with a single semisphere cut out. I then saw the circular pattern feature, which seemed perfect. However when I use it it seems to go wrong. The first time I used 'new' which just created a shape inside a shape of course. Now I'm trying to use 'remove', but now I get an error.



My document is here

bradley_sauln

The way I would approach it is to use the revolve to create the sphere as a new part. Then use the Circular Pattern > remove option. This will cut the sphere into the cylinder and even get rid of it for you after the action is complete: https://cad.onshape.com/documents/6df6eb576dc7b1e5066caa73/w/899142034f3ca7ead9d915ae/e/a7fe6ae67d6600e71f9b0cd6

bradley_sauln

The way I would approach it is to use the revolve to create the sphere as a new part. Then use the Circular Pattern > remove option. This will cut the sphere into the cylinder and even get rid of it for you after the action is complete: https://cad.onshape.com/documents/6df6eb576dc7b1e5066caa73/w/899142034f3ca7ead9d915ae/e/a7fe6ae67d6600e71f9b0cd6

ilya_baran

The other option is to do a face pattern instead of a part pattern.

mahir

Or yet another method, use a feature pattern to pattern the revolve cut feature.

ilya_baran

@mahir
That will work, but feature patterns take longer to regenerate than part or face patterns (because they reapply the features, not just replicate the geometry).

to_ca

bradley_sauln said:

The way I would approach it is to use the revolve to create the sphere as a new part. Then use the Circular Pattern > remove option. This will cut the sphere into the cylinder and even get rid of it for you after the action is complete: https://cad.onshape.com/documents/6df6eb576dc7b1e5066caa73/w/899142034f3ca7ead9d915ae/e/a7fe6ae67d6600e71f9b0cd6

Thanks Bradley, this is what I did. I created a single sphere and then when I used the repeat I did it with remove. I was a bit confused conceptually because I assumed the the circular repeat would repeat the removal, but I think what it did was repeat the shape inside the original shape, leading to confusing results.