topic Re: Sweep Profile Not Perpendicular To Path in Fusion Support Forum

Sweep Profile Not Perpendicular To Path

Anonymous — Tue, 17 Sep 2019 05:15:41 GMT

I'm attempting to make a bolt hole that follows a particular path. I created a sketch line to use for the path. I have the sweep set to be perpendicular, however it doesn't cut perpendicular to the path.

The face at the bottom of the counterbore is parallel to the front face. How can I make the profile be perpendicular to the path?

Re: Sweep Profile Not Perpendicular To Path

davebYYPCU — Tue, 17 Sep 2019 05:27:42 GMT

The profile sketch needs to be on a Plane on Path, type Construction Plane. Will create the circle at the base of the counterbore and an Ellipse on the face of the material.

Might help....

Re: Sweep Profile Not Perpendicular To Path

hpekristiansen — Tue, 17 Sep 2019 13:19:14 GMT

The parallel sweep is a sweep where every cut parallel to the profile has the same shape.

The perpendicular sweep is a sweep where every cut perpendicular to the path has the same shape. Notice that this shape is only the as the original profile, if that profile is indeed perpendicular to the path.

To show the difference, here are two circles sweeped perpendicular an parallel (the cross section along the start of the path is an ellipse because the profile is not perpendicular to the path):

Re: Sweep Profile Not Perpendicular To Path

Anonymous — Tue, 17 Sep 2019 23:49:07 GMT

So I understand why the parallel mode behaves the way it does. I don't get why in my case the perpendicular setting bottoms out on a face that is parallel with the source plane. I would expect it to end perpendicular to the path like in your example (if the body on the left is the perpendicular sweep).

Re: Sweep Profile Not Perpendicular To Path

davebYYPCU — Wed, 18 Sep 2019 01:46:49 GMT

Your source profile is not perpendicular to the path, therefore at the other end of the path it remains not perpendicular.

I thought you were after a circle shape at the base of the hole.

Use a circle profile on a Plane on Path Construction Plane. This will develope an ellispse on the top face. If you were after a circle on the top face and the base of the hole, you need two sketches and a Loft.

Re: Sweep Profile Not Perpendicular To Path

Anonymous — Wed, 18 Sep 2019 02:32:38 GMT

It seems to form the circular shape, but I was hoping that the circle would be perpendicular to the path. That way the bolt would seat flat in the bottom of the hole. I'll figure out a way to make a plane perpendicular to my path.

Re: Sweep Profile Not Perpendicular To Path

davebYYPCU — Wed, 18 Sep 2019 02:58:08 GMT

It’s Construction > Plane on Path, Select your Path, drag the handle to your desired location,

create Sketch on your new Plane and centre a circle in this sketch. Extrude the hole. Does not need to be a Sweep anymore.

Might help.....

Re: Sweep Profile Not Perpendicular To Path

Anonymous — Sun, 22 Sep 2019 23:09:11 GMT

That's what I wound up doing. Works well.