Woodturning Basket Illusion

Hi- I am a woodturner and I’ve recently been doing a technique called ‘Basket Illusion’. It basically involves creating a grid pattern on a turning and then coloring in the grid boxes - see attached. I’ve been using Sketchup to create either a flat or polar grid, then working on the pattern by coloring in the boxes. This works, but what it lacks is creating an accurate rendering of the distortion of the turning. The closest I’ve been able to get in Sketchup is using the follow me tool around a polygon. This works well for my segments in each layer since I can specify the number of sides in the polygon to create my boxes per horizontal ring, but I haven’t come up with a solution for creating the number of stacked rings I need - see attached. Sketchup creates boxes I can fill in, but I need to be able to specify the number of rings to get an accurate drawing.

Boy, I hope this makes sense!! Hopefully the included pics will clarify what I’m trying to describe.

Thanks,

Jack Freed

I’m not really understanding what your question is.
You can specify the number of segments in an arc, you can combine arcs of different number of segments and you can explode the arcs to make the edges hard if that’s what you need.
For example
GIF 24-11-2025 12-13-07 PM

I understood your question differently than Box’s answer, but the idea is the same: to create the arc with 34 segments and the circle with 72 for the FollowMe.
I modeled it, with added small arc to each of the 34 segments, as shown in the right image, the image on the right is the FollowMe schematic with plain 34 segments arc.

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attached file, where you can see the small arcs

Basket.skp (13.0 MB)

Thank you both! I didn’t realize you could specify the number of segments in an arc.

Charevir - could you show me how you added the arcs to the 34 segments? That’s a nice touch!

Select Arc tool, or hit ‘A’, then type in the number of segments to change it from the default of 12. Once an arc has been drawn, provided it’s not connected to too much other geometry, you can change that number in entity info. Better to draw it correctly the first time though.

Sorry, maybe I didn’t explain myself. I know how to draw the arc and change the number of segments. I was asking how you created the scalloped edge along the arc path that gave more dimension to the drawing.

Thanks,

Jack

You can do a radial array.
Here I have made an arc of 36 segments, then drawn a 5 segment arc on one of those segments, then used the center point of the original arc to Array copy the second arc along the original arc.
GIF 25-11-2025 9-58-42 AM

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