Hi George
- Add a new plane above the curved surface and draw a sketch on it.
- Click on Offset on the Edit Tab
- Select the curved surface (hold down the Alt key to do this)
- Select the 'With Draft' option top left corner of screen
- Click in the sketch collector box and select your sketch
- Add the depth you require
- Add a draft angle if required
Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
I hope this is what you want.
