Can I make a Hole through this part

cyrus_costa541

I want to make a hole that starts from on of the red surfaces and ends at the other how can I do this.

Matt_Shields

Sketch a hole profile on one red surface.
Sketch a point on the other red surface. 

Create a 3D spline between them. 

Sweep remove the profile. 

cyrus_costa541

Ya I thought about doing that but the hole needs to be different sizes as you can see cuz the red profiles are sized differently. So is there any way I can make a surface that changes sizes?

NeilCooke

Loft

Matt_Shields

Loft.  With a Path.

cyrus_costa541

I tried that but it says it would create a self intersecting body. What is that and how do I avoid it?

Matt_Shields

To avoid self-intersecting bodies, avoid loft paths with tight radius bends.  See the examples below.  The first one works because the path has gentle bends.  The second one self-intersects, meaning the lofted shape runs into itself.