# How do I draw disdyakis triacontahedron (in Solidworks)?

**URL:** <https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849>\
**Category:** Factual Questions\
**Created:** [May 25, 2021, 4:49am UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849 "2021-05-25T04:49:11Z")\
**Posts on this page:** 9\
**Page:** 2

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**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\
**Post date:** [May 27, 2021, 7:36pm UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/21 "2021-05-27T19:36:20Z")

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> [@DPRK](#):
>
> If you have a stencil cutter like Dr.Strangelove

My 40 watt CO2 laser is offended at being called a “stencil cutter” 🙂 .

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [May 27, 2021, 8:22pm UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/22 "2021-05-27T20:22:58Z")

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[Computer, please recharge this battery so we can armor that meat-sack.](https://www.schlockmercenary.com/2011-05-18)

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**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\
**Post date:** [May 27, 2021, 9:50pm UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/23 "2021-05-27T21:50:37Z")

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I miss that comic.

That said, there are definitely lasers out there that put mine distinctly in the toy category. A laser suitable for small children, maybe. So I’m possibly inviting a kind of _you call **that** a laser?_ response.

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**Author:** ![komolono](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/komolono/32/532_2.png) [@komolono](https://boards.straightdope.com/u/komolono)\
**Post date:** [May 28, 2021, 6:05pm UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/24 "2021-05-28T18:05:32Z")

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Thanks for helping me with this. I finally got it made. No calculations - just Solidworks features.  
This is how I made it:  
Parts 1-5  
The following on all planes(Front plane, Top, Right)  
Circle diameter 50 units  
Circle diameter 49 units  
Boss 1 unit (mid plane)  
After choosing material Custom plastic (Appearance Black, Red, Blue, Green & Orange) save using their color in filenames like bl3x, re3x…

Part 6  
Circle of diameter 49 units boss 1 unit  
Circular pattern 5 times around 360 degrees  
Save as finSphere

Part 7 (optional)  
Sphere of 49 units (Custom white plastic)

Next mating (Assembly)  
Load finSphere and place it’s origin in Assembly’s Origin (OK sign does it) aligning the axis.  
One by one insert the five parts (bl3x, re3x…) mating them with the assembly’s origin (but not aligning axis) and parallel to the fins. You should use the same order as seen in the image above  
(black, blue, red, green, orange).  
Half way through - now you can insert the white plastic sphere to hide the other side. Look at the image again. This pentagon in upper left corner is your map of mating the rest. Black circle is intersected by orange and blue. You may have noticed that they have small knobs of their color on them. It means that they are crossed with their orthogonal circles. Other crossings have white knobs. Every pentagon has a knob of each color and a white one in between. So before mating the intersections of this pentagon, look at the other pentagons and intersecting circles to match the size. It will be easy if you placed the optional white sphere.

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**Author:** ![komolono](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/komolono/32/532_2.png) [@komolono](https://boards.straightdope.com/u/komolono)\
**Post date:** [June 1, 2021, 8:01am UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/25 "2021-06-01T08:01:51Z")

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Here is my 3D-printed (bad quality) disdyakis triacontahedron. If I explained the fin-part of the design poorly, maybe this image clarifies things…

> **[disdyakis3D.jpg](https://drive.google.com/file/d/1iYTrIfNBJn88P7HnE-0FyHrb6Q6dBFnK/view?usp=sharing)**
>
> Google Drive file.

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**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\
**Post date:** [June 1, 2021, 8:41am UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/26 "2021-06-01T08:41:41Z")

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Interesting.

What kind of 3D printer is that? The surface quality is variable, but some of the surfaces are quite smooth. It does not look like either a filament or resin printer. Or maybe you used some postprocessing step, like acetone vapor treatment?

I see some interesting tools in the background. A nice machinist’s vise, some ER collets, a good size face mill… and a spoon 🙂 . Is that your personal space or do you have access to a nice shop?

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**Author:** ![komolono](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/komolono/32/532_2.png) [@komolono](https://boards.straightdope.com/u/komolono)\
**Post date:** [June 1, 2021, 9:17am UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/27 "2021-06-01T09:17:25Z")

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Well, it isn’t my living room. Those collets and other equipment are for Hyundai cnc milling machine I work with. 3d printer Makerbot Replicator +. I know the person who owns the spoon, but I haven’t seen him in two to three years…

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**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\
**Post date:** [June 1, 2021, 9:26am UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/28 "2021-06-01T09:26:36Z")

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Nice! Any kind of Hyundai CNC is a serious piece of equipment. I might be able to justify a Tormach someday… for now I do have a spoon (and laser cutter).

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**Author:** ![octopus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/octopus/32/3716_2.png) [@octopus](https://boards.straightdope.com/u/octopus)\
**Post date:** [June 5, 2021, 6:07am UTC](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849/29 "2021-06-05T06:07:06Z")

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Looking at that first example it looks like the vertices lie on circles in 3 sets of 5 planes that are rotated around 3 axes. I’d create a set of 15 planes and draw a circle on each plane with a constant diameter. I’d use the intersections as vertices and then fill in each triangle with a surface. I’d take those surfaces and knit them into 1 surface and then convert that surface to a solid.

[Previous page](https://boards.straightdope.com/t/how-do-i-draw-disdyakis-triacontahedron-in-solidworks/942849.md?page=1)
