Plane to follow a curved angled surface.....

dannyi

 I'm looking to add tread pattern along this surface. Need the extrusion to follow the angle into the surface as well. A top or right plane make the extrusion shallow at one end and deep at the other. Tried a line angle, point plane and curved point...but can't get them to work, also not sure if they are the right ones to try.

NeilCooke

Hi @dannyi try offsetting the surface inwards by the depth you want (move face / create) then in your extrude use "up to part" and select the surface you created. If you need the tread normal to the surface, split the face with your sketch then use thicken/remove. 

NeilCooke

In fact you could just extrude up to face with offset. 

dannyi

Hi Neil, I tried what I thought you were telling me but never could get it to work. But I did have success with this way....(see pic)..I did 2 sketches on each side far enough away to be able to get the plane on the right angle plus work on the sidewall pattern. Problem is I now can not remove or modify the the sketches or I loose all the side wall pattern. Shapeway will not print this because of the 2 separate pieces and the bounding box is too big. Is there a way to delete/remove the sketches and keep the sidewall pattern? 

NeilCooke

You could export just the tyre as STL for Shapeways?

dannyi

I did, but the STL picks up the 2 other pieces. I tried to move them to almost touching the tire but moving them erases the pattern. Also tried to "remove" in the extrusion, same effect, patten disappears.  Is there a work around like "fixing" the sketch to the tire, maybe boolean all the parts?

dannyi

I sketched the 2 rectangles so I could add a sketch plane at the proper angle for the sidewall. The 2 planes are there in the pic, why does the original rectangles have to be present? The rectangle were used just to generate the planes.

dannyi

Also, how could I generate those planes without the parts?

mahir

You can use the "Delete Part" command to remove any leftover unused parts/bodies. To pattern without the sketches, you'll need to perform either a face pattern or a part pattern followed by a boolean subtract. You're probably using a feature pattern, which also patterns the sketch required for the extrusion.