A ball with a recess. Possible?

I want to make a ball with a recess to put on sharp corners. I will use the model for 3D printing. But is it possible? Thanks

Sure. Model a ball and make it a group or component. Model a box and make it another component or group. Make sure both are reported as solid. Use the Solid tools to subtract the box from the ball.

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Great. Thanks :grinning: :grinning: :grinning: :grinning:

Sorry. Its new for me :grinning: I can make a ball, but how do I make it solid ?

To help achieve your goals, some time spent at the SketchUp Campus and at the SketchUp - YouTube channel will be very worthwhile. Both sites are from the SketchUp team. On the YouTube channel, pay attention to the Square One Series. It covers the basics for each tool.

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I will do. Thanks :grinning:

Select it and make it a group.

But it might help if you understand the geometry of sketchup. It’s not magical, it is just edges and faces. By turning on hidden geometry you can see the underlying structure and work with it.
What I am doing in this vid is basically what ‘Solid Subtract’ is doing under the cover of code.

Select it by clickin 3 times on ii, then right click and make group or component, you can use the solid inspector plugin to check if your geometry doesn’t have errors, sometimes stray edges can get inside of a group and it could take some lime to find it, solid inspector gets rid of them with one click.

Keep in mind how the ball relates to the block. You can use the corner to align the sphere when creating it. This is centered on the bottom corner, but I could have used the midpoint, or made the circle larger and so on.
Trim from the solid tools will leave the block in place.

Great input from all of you. Thanks.
It was my ball that was corrupt.
Have a nice day :grinning: