topic Re: repeating holes in a sphere in Inventor Forum

repeating holes in a sphere

Anonymous — Tue, 03 May 2016 04:35:51 GMT

Hi all,

I need to make 1600 holes in a sphere as a 3D printing project. The job is essentially a hollow sphere with with tons of holes perpindicular to the surface in a repeating pattern, but I dont know how to get these kinds of holes, nor how to get a cirular repeating pattern going to even start. I've been able to make a hollow sphere, but dont know how to go from here.

Any help would be appricated.

Thanks!!

Re: repeating holes in a sphere

CCarreiras — Tue, 03 May 2016 09:28:57 GMT

What you have so far?

Re: repeating holes in a sphere

Anonymous — Tue, 03 May 2016 14:19:26 GMT

So far I took two half circles and revolved them around a center axis for a hollow sphere with a small wall thickness

Re: repeating holes in a sphere

Curtis_W — Tue, 03 May 2016 15:04:17 GMT

Hi nanospace,

See this golf ball model. It might give you some ideas on how to create the pattern.

GolfBall.zip ‏96 KB

The xip file link comes from here:

http://forums.autodesk.com/t5/inventor-general-discussion/making-a-golf-ball-in-inventor/m-p/2424970#M330761

I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com

Re: repeating holes in a sphere

dan_inv09 — Tue, 03 May 2016 23:21:10 GMT

I wish I knew how they plan to pattern the holes.

I got 1570 and a couple of attempts just below there and some over 1700 ... I think I might have an idea for how to do get exactly 1600 but it might not work (and I may have to fiddle with my elements)

Doing it this way I can also easily count how many holes there are. I was going to post is derived into one part but it was 18 meg and 17 meg zipped.

Re: repeating holes in a sphere

dan_inv09 — Tue, 03 May 2016 23:28:32 GMT

I looks like it did work.

use the element from the other

Re: repeating holes in a sphere

dan_inv09 — Tue, 03 May 2016 23:29:49 GMT

Why did it double post, and double the attachment in the second one?

Re: repeating holes in a sphere

dan_inv09 — Wed, 04 May 2016 00:22:20 GMT

Here I tried to get rid of the straight line of holes.

(If you do the Free Orbit with Shift to spin one of these, at certain speeds it will mess with your mind.)