Extruding at an unwanted small angle: My fault or bug?

[rshouker]

I Extruded two boxes from rectangles in a sketch.

I Wanted to add create the convex closure of the two (which means adding an extruded triangle.)

I created a sketch on the joint front face of the boxes, and drew a line which create the triangle.

I created an 0 offset plane of the joint back face of the boxes.

I extruded the triangle to the offset plane, and for some reason I got a small angle between the triangle and the boxes.

Is it my fault? Is it fusion 360's fault.

I'm working on a mac.

here is the design:

 http://a360.co/1UnvJZu

[TrippyLighting · Accepted solution]

Yours 😉

Your first extrusion follows the circle and is not rectangulay.

The second extrusion is perpendicular to the construction plane and that leaves the small wedge shape open. It's actualy not perfectly triangular in shape but has one side with a large radius.

[rshouker]

Thanks 🙂