Live data from Hacker News

3D-printed antenna radiation patterns in color [video]

youtube.com

11–20 of 20 posts

Re: 3D-printed antenna radiation patterns in color [video]

#11
post #8
post #3

Is it that much more "enlightening" to 3D print vs just rotate the model on a computer screen? I can rotate a rendered model and get a pretty solid idea of the shape. I don't have to hold a physical model.

And his physical models are now rendered to our computer screens just like a virtual 3D model would be. Just with a bit more noise and shading.

I like how you think. 2D ---> 3D ---> 2D. Nothing has changed and yet we feel the latter is more "comprehendible"!

Re: 3D-printed antenna radiation patterns in color [video]

#12
post #3

Is it that much more "enlightening" to 3D print vs just rotate the model on a computer screen? I can rotate a rendered model and get a pretty solid idea of the shape. I don't have to hold a physical model.

Maybe for some other phenomena, but for antenna radiation it's not that complex, it just looks cool.

Re: 3D-printed antenna radiation patterns in color [video]

#14
post #10
post #3

Is it that much more "enlightening" to 3D print vs just rotate the model on a computer screen? I can rotate a rendered model and get a pretty solid idea of the shape. I don't have to hold a physical model.

You inherently get a better sense of the pattern since you can use stereoscopic vision rather than parallax+movement. It could give you a better sense of what a complicated shape looks like. When you look at something complex enough[1] it helps to get as much information as possible. The eyes alone are not optimal for grokking it, even when the shape is moving around[2]. [1] https://images4.sw-cdn.net/product/picture…

Ok, but why not use VR goggles?

Re: 3D-printed antenna radiation patterns in color [video]

#15
post #14
post #10

Earlier quoted context omitted.

You inherently get a better sense of the pattern since you can use stereoscopic vision rather than parallax+movement. It could give you a better sense of what a complicated shape looks like. When you look at something complex enough[1] it helps to get as much information as possible. The eyes alone are not optimal for grokking it, even when the shape is moving around[2]. [1] https://images4.sw-cdn.net/product/picture…

Ok, but why not use VR goggles?

Because VR still sucks, and even good VR still messes with sense of proportion. Easier for most just to handle the object. But for complex or impractical to print items, it is a fantastic idea used by most modern engineering companies.

Re: 3D-printed antenna radiation patterns in color [video]

#16
This makes me wonder: is it possible to submerge the antenna in a special fluid or powder and send some modulated current through it, so that said fluid hardens in form of a radiation pattern? We could then MR scan it and see the real pattern in 3D. It would be super interesting to compare the result to a simulation. Any ideas on what that fluid should be?

Re: 3D-printed antenna radiation patterns in color [video]

#19
post #14
post #10

Earlier quoted context omitted.

You inherently get a better sense of the pattern since you can use stereoscopic vision rather than parallax+movement. It could give you a better sense of what a complicated shape looks like. When you look at something complex enough[1] it helps to get as much information as possible. The eyes alone are not optimal for grokking it, even when the shape is moving around[2]. [1] https://images4.sw-cdn.net/product/picture…

Ok, but why not use VR goggles?

Part of it is the sense of touch, weight, inertia and angular momentum. Like knowing how full a bottle is when you shake it.

Re: 3D-printed antenna radiation patterns in color [video]

#20
post #7
post #6

Earlier quoted context omitted.

Hard to say. Is it much more enlightening for a doctor to hold a model of a medical scan in their hand, or rotate it on a screen? There's potentially a lot of information to be interpreted in a 3D model, being able to use our natural systems to interpret the model seems like it would make it easier to understand. I imagine VR would be a step from looking at a model on a flat screen. Having the physical model goes a s…

I think this is more of a vanity/luxury than actually TRULY useful thing. Many complex geometries are designed on CAD - from Airplane assemblies to intricate VSLI circuits. Physical model is nice...but its utility is not justified for the expense of 3D printing. Probably in industrial design and architecture. I don't come across a 3D graph where I go "Gee! I wish I had a physical model. I just can't understand this t…

There is value in the 2d -> 3d print -> 2d because the realworld lighting is much better in showing us aspects of the shape than say a raw CAD render.
Post reply on HN