Adding hole to side of cylinder

dave_schrat

The only way I can add a hole to the side of a cylinder is to create plane and “attach” the hole to it.  Then, when the cylinder is moved the hole does not move with the cylinder.

 

Is there another way to add a hole to the side of a cylinder?

 

I have spent a lot of time looking for a solution.  Previously posted another question under “Newbie looking for Structure” with no responses.  Now I am trying to simplify my question.  With all the things Onshape can do this seems like it should be simple.  Am I asking to much? 

 

https://cad.onshape.com/documents/641092563879ce25f2542d37/w/d403deadbb366c301f51af1e/e/b5791dbf429d941f87f5a326

jordan_cannon

Create a sketch on the front plane. Select the use command and project the side of the cylinder. Create a plane using the plane point command and select the right plane and the centerpoint of the line from the sketch you just created. Locate a point on this plane to define the hole. This plane is defined using the part geometry, so it will update when you change the diameter.

https://cad.onshape.com/documents/d828db7c9be2da79e30ab341/w/cb7714819c4e03aae37f05ff/e/99f3b8e45359bad3365ddd23

jordan_cannon

Create a sketch on the front plane. Select the use command and project the side of the cylinder. Create a plane using the plane point command and select the right plane and the centerpoint of the line from the sketch you just created. Locate a point on this plane to define the hole. This plane is defined using the part geometry, so it will update when you change the diameter.

https://cad.onshape.com/documents/d828db7c9be2da79e30ab341/w/cb7714819c4e03aae37f05ff/e/99f3b8e45359bad3365ddd23

dave_schrat

Thanks for the response.  Not sure my brain is designed to work with Onshape.  Before I looked at your example, I projected the sides of the cylinder.  Which did move the hole location with diameter change and moving the cylinder. The hole location did not move with change in cylinder height.  Then I looked at your example.  When projecting the top and bottom as you did, hole location changes with all dimension changes.  For reasons that do not make sense to me, projecting the sides has different constrains than projecting the top and bottom.

I’m putting a point in my original sketch to orientate the Point Plane and eliminating one of the sketches.

Thanks again.

wayne_smith059

need help - like very much the "use" command but where is it? how to access it? 

Jake_Rosenfeld

Hi @wayne_smith059

The "Use" command is a sketch command, so it is only in the toolbar while you are sketching.  Here is what it looks like and how to use it:
https://cad.onshape.com/help/Content/sketch-tools-use.htm