Slot/remove extrusion inside an extruded spline curve

Tru7h

Hi Onshape people!

Here's a basic version of the model:
https://cad.onshape.com/documents/0c14d84af32292c4fc0de63b/w/3220ffb69412c65a546e6d32/e/7e494a2ec02cac77da9f0d36

I have a slot "cut" for material this part is supposed to support. I also need to have the same .125" slot removed from the "inside diameter" of the arch. I have no idea how I would do that. 

Thoughts?

mahir

I'm not exactly sure what you're trying to do. It sounds like you want to create a slot along the curved inner wall of your extrusion. If that is the case, as usual, there are several way to accomplish what you want.

1) Use an extruded cut similar to the first slot, but use an offset plane (or s second end position) to cut it out of the middle.

2) If the slot is more complicated that a simple extrude, you can use a swept cut. You would need to create a path (just a projection of the inner arch boundary) and a profile (a sketch normal to the path that has the desired slot shape).

3) Another option is to create and trim the inner surface, thicken it, and then subtract it from the main body. I wouldn't suggest this method for your case. It would be simpler to just extrude a cut.

4) Redo the whole shebang using a more complicated sweep that has a profile that incorporates your slots. This is probably more trouble than it's worth, but it's an option.

Good luck!

mahir

I'm not exactly sure what you're trying to do. It sounds like you want to create a slot along the curved inner wall of your extrusion. If that is the case, as usual, there are several way to accomplish what you want.

1) Use an extruded cut similar to the first slot, but use an offset plane (or s second end position) to cut it out of the middle.

2) If the slot is more complicated that a simple extrude, you can use a swept cut. You would need to create a path (just a projection of the inner arch boundary) and a profile (a sketch normal to the path that has the desired slot shape).

3) Another option is to create and trim the inner surface, thicken it, and then subtract it from the main body. I wouldn't suggest this method for your case. It would be simpler to just extrude a cut.

4) Redo the whole shebang using a more complicated sweep that has a profile that incorporates your slots. This is probably more trouble than it's worth, but it's an option.

Good luck!

Tru7h

Thanks! I ended up reworking the shape using the sweep tool, which allowed me to do both grooves and a couple other features!