Cutting square notches on Cone

[Anonymous]

Thanks for your help. I am trying to cut 4 equally spaced rectangular notches around the bottom of this cone .135" wide X .075" deep. I have tried extruding a rectangle through the walls, but I can't seem to get it on a right plane, and once I pull it through, how do I get rid of this new shape. And, how do I get these notches in the right place (at zero, 90, 180 and 270 degrees).

Much appreciate any help you can offer - I have to print this one prototype.

Eric

[Johnc911]

Quick look at your model, are you aware it's not a solid? Do you know how to make it solid? Is that your intent?

[Johnc911]

If you meant it to be solid, do this to make it solid. Then, would you be able to cut your squares?

[Anonymous]

The cone is not a solid. It is megaphone like, with .20" walls.

[Anonymous]

Very new to this. I thought I made a "megaphone" cone with solid .2" walls - how can I tell?

[Johnc911]

Ah, OK. That's not exactly what I meant by solid.

In CAD terms, solid means it's a closed, watertight body. As opposed to what you started with there, which was a surface body - which is really just a wall with no thickness.

If you make the correction I suggested, I think you will understand what I mean.

[Johnc911]

Here is the file with the corrections to make it a solid. Look at the two steps I added in the timeline. See the difference? Try your cuts now.

[laughingcreek · Accepted solution]

I wouldn't mess with the surface tools at all for this.  just the solid tools. 1 sketch and 1 revolve and the megaphone is done.  Not sure what you are meaning by the square notches, but here is my best guess from your description.  see attached

[Anonymous]

Thank you laughingcreek! I think that's it - now I need to go through the timeline to see how you did that. This is all very cool!

[Anonymous]

Thank you JohnC911! I didn't know about the timeline - so this helps!