I just came across this Nest smoke alarm, and got curious about the pattern on the front: https://nest.com/blog/2013/10/08/meet-the-nest-protect-smoke-and-co-alarm/
Is it possible to somehow through one or more pattern features to create something like on the attached picture? I can't crack it myself. Help is appreciated 
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Interesting patterns came up when trying to do this without the reference. For the most part, I got the jest of how to make sure it could be mirrored. I used the arc to get a good pattern and the linear pattern with a "twist" for hole sizing and extrusion.
Full version of Creo 2.0 attached (minus the underlay image so it doesn't mess anyone up).
Ah, I see.
My mind was stuck on the fill pattern, but I can see how it is possible with a sketch and a pattern around the center axis. I'll give it a try.
Thanks.
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Quick and dirty test:
It needs some adjustment to look more like the pattern on the nest, but it's definitly possible. Thanks for the help.
Here's a more examples in Grasshopper with a grab of how you would do it in there. You might be able to look at the nodes and extract an idea of how to do it. I could give you more info if you have any questions, I'd give a detailed response now, but I don't have time. 
Here is a great reference with interactive examples. Probably your best bet.
Oh, I meant the Spirograph, great value at $14.99 for a full set at your local Target.
Agreed Matt. The Nest was brought up in the context of a conversation about the "internet of things" (further reading if you're intetrested), where we're seeing a big shift toward internet-connected home products (think thermostats, smart TVs, and small appliances). Nest is on the bleeding edge of this trend, so hopefully the price will come down over time to the point where your next purchase decision won't be prohibited by cost.
Dale Rosema wrote:
You sure there's not an app for that?
I was thinking that.
And then I looked.
Appears to be a bunch of them.
This is what I came up with so far. The mirror overaly is not resolved yet but I have an idea. One of the difficulties is the 84/360. But that is how it would be resolved. In this case, I just snuck up on it by checking a mirror circle in the sketch. You should be able to constrain it to be perfect.
As for constant webbing and such, it will require significant sketch control but nothing that can't be done.
This pair?
The arc actually helps this in some respects but yes, these are the two key elements.
I went through the "great circles" for each of the hole series and they are not expanding at a specific rate. On a graph, they actually curve. In my sample from 6 to 7 back to 6.5. The photography is part of the distortion, but it may not be linear either. That "true circle" effect is done purposefully. That is why that inner pattern, the 1st one seems "odd".
This is what a true linear interpretation looks like and the constant arc disappears.
Interesting patterns came up when trying to do this without the reference. For the most part, I got the jest of how to make sure it could be mirrored. I used the arc to get a good pattern and the linear pattern with a "twist" for hole sizing and extrusion.
Full version of Creo 2.0 attached (minus the underlay image so it doesn't mess anyone up).
