cut on a taper body is not behaving as I would expected

[paulMVAJU]

I am trying to cut this body where the shelf part is there, but I don't need all the edges. 

(I will give more context at the bottom of the post)

Before the cut.

After the cut. The red is my sketch and the orange is what should be removed with what is being removed.

It looks like it should cut the whole thing, but it is not. 

You can pick up these pencil boxes at Dollar General for a buck apiece. I would like to make custom inserts that just drop in. This one is for my rivet nuts and drill. The shelf is for the drill. The top is as tall as the pencil box, so when the lid is closed it will be captured. So I don't need to 3D print all the sides since the box sides will be there. All I need is enough to hold it in place. Here are some pictures where I was printing parts just for proto-typing.

[Warmingup1953]

I think the issue is the Planar location

 of your cutting Sketch: EDIT: Actually I think you also had not selected the entirety of the cutting sketch.

[paulMVAJU]

I moved it to the bottom and still had the same issue. I remember seeing a post where the guy had a similar issue and it had to do with his projection lines. I did project, but none of my lines were based on them. As a long shot, I removed all projected lines and did not touch the block-out part and it worked.

[paulMVAJU · Accepted solution]

For some reason removing the projected lines worked. The easy answer would be that I did not mark all of them, but I did, and looking at the f3d file should show that. I am going to mark this as the answer just to make the forum bot happy. I think it should have worked as it though. So either removing the projected lines or operator error. 🙂