topic Re: Grid pattern on a torus shape? in Fusion Support Forum

Grid pattern on a torus shape?

Anonymous — Thu, 02 Jan 2020 22:07:34 GMT

I have a Torus shape with som holes in it and i want to have lines that are extrude/cut between them about 1 mm deep or so and i have not succeeded to make so.

I have med the holes by making one extrude of a hole and then circular patterns to get the amount i want to have.

But when i do the same and to a sketch with the lines an cut from object it looks okej but when doing the circular pattern it either will not do it due to problem or it becomes wierd.

Any suggestion how to do it?

Re: Grid pattern on a torus shape?

jeff_strater — Thu, 02 Jan 2020 22:57:33 GMT

@Anonymous - not sure what is "weird" about this pattern, it looks correct to me. But, there are a couple of optimizations you can make to make this more efficient. You can do it in 2 pattern features, not 3, and if you use Optimized instead of Adjust, it will be much faster:

screencast: https://knowledge.autodesk.com/community/screencast/04c50763-5e3e-4ca6-9254-0624faf48262

(screencast embedding is fiddly these days, I'll post again with the screencast embedded)

Re: Grid pattern on a torus shape?

jeff_strater — Thu, 02 Jan 2020 22:58:19 GMT

trying again with embedding:

Re: Grid pattern on a torus shape?

Anonymous — Thu, 02 Jan 2020 23:12:53 GMT

Thanks for educating me on those functions 🙂

But my problem is to make a 1 mm deep line between the holes. here is lines between 3 holes (almost. some fault if it goes over a hole.

Re: Grid pattern on a torus shape?

wmhazzard — Fri, 03 Jan 2020 02:29:19 GMT

Here is a start for you, the radial grooves were easy, the horizontal grooves are not. There might be a better way though. I recommend finishing the top half and then cut off the bottom and then mirror the top to finish the bottom. Basically I made an axis through the hole, used a plane at an angle of the axis, sketched the groove, offset a plane to the center of the groove, sketched a circle on the plane and swept the groove profile around the circle.

Re: Grid pattern on a torus shape?

jeff_strater — Fri, 03 Jan 2020 03:32:13 GMT

I got to the same point - got the radial grooves, and then was scratching my head for the horizontal grooves.

The one difference for me was I used Pipe for the groove - one less sketch. I used a square profile in Pipe, assuming the desired result was a square groove.

Re: Grid pattern on a torus shape?

wmhazzard — Fri, 03 Jan 2020 04:26:52 GMT

Good idea on the square pipe. I just realized that I didn't need to make all the unnecessary planes and axis either, you just need to use the XZ plane for the rest of the sketches.

Re: Grid pattern on a torus shape?

Anonymous — Fri, 03 Jan 2020 10:04:11 GMT

Thank you so much for the solutions 🙂

It was bit more complicated then i thought. I thought i just missed something but it was a bit more to it!

Now the hard part to se if it is 3d printable 😛

Re: Grid pattern on a torus shape?

wmhazzard — Fri, 03 Jan 2020 14:03:47 GMT

After sleeping on it, I figured out a faster way of doing the grooves. The timeline after the group is what I came up with to speed up the process.

What is the torus for?

Re: Grid pattern on a torus shape?

Anonymous — Fri, 03 Jan 2020 16:28:00 GMT

Sweet i will look into that.

It to make a toridal Go board game. To be able to have a Go board game without borders. Not sure if it will be good in reality 😛