How to add revolves into an extruded cylinder

henry_feldman

So I have this cylinder (just a simple extrude with a chamfer on each end. This is a pin going onto a handle, and I want small bulges to keep the pin from falling out of the handle. I cannot figure out how to add a revolved shape (yes I realize I could recreate the entire shape as a revolve, and if that's the only way, then fine) of the little bumps (i.e. a toroid) to each end (essentially where the boxes/arrows are)?

jakeramsley

Since you already have your part and want to do some modifcations, I would suggest splitting the face and using the direct edit command Move Face with an offset to create it.

1. Start a sketch that is orthogonal to your revolved part.


2. Sketch some lines that you want to split the face.  Create the start and end side profile of the rings.  I dimensioned them to my part so that it will all updated parametrically.


3. Save your sketch and start a split command.  Change the options to split face and select the face to split (I was lazy and box selected every face).  Add the sketch in for the split entities.  This will create two faces that correspond to what you want to raise.


4. Select the faces and then start a move face.  Make the type offset and pick the distance you want them to be offset.

matthew_menard

Should be very easy.  Make a sketch on a plane that is along the middle of the extrude.  Add two rectangles and dimension them per your specs.  I did have to use some construction geometry to make them coincident with the outer diameter, see my example.  Finally just revolve around the center of your part.  Below is just one way of doing this.  You could also make one rectangle and mirror the resulting faces to the other side (I think, didn't try).  Hope this helps

https://cad.onshape.com/documents/4d3a3befc86f475c86e135ad/w/ea2bd8a23ebc4bdcbf2079cf/e/e6db51c1526b49d3948583c7

jakeramsley

Since you already have your part and want to do some modifcations, I would suggest splitting the face and using the direct edit command Move Face with an offset to create it.

1. Start a sketch that is orthogonal to your revolved part.


2. Sketch some lines that you want to split the face.  Create the start and end side profile of the rings.  I dimensioned them to my part so that it will all updated parametrically.


3. Save your sketch and start a split command.  Change the options to split face and select the face to split (I was lazy and box selected every face).  Add the sketch in for the split entities.  This will create two faces that correspond to what you want to raise.


4. Select the faces and then start a move face.  Make the type offset and pick the distance you want them to be offset.