On the website of the snail enclosure speakers it is stated that they finish with a special layer because else the material is too brittle, are you aware of this? And have you gotten info from the manufacturing company about the possibillities to make the material less brittle?
I can imagine that some sort of epoxy coating could be applied, maybe sprayed on.
I can imagine that some sort of epoxy coating could be applied, maybe sprayed on.
Sure, as I already said, it will be impregnated with epoxy resin. They said it's like stone then. Only during the initial manipulation it may be prone to breaking if too thin.
It's a little hard to see - on one picture it looks like its "filled" - like if you would place it with the mouth down on a table and fill water in it to become like a ring shaped pond.
But maybe its 12 mm everywhere?
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But maybe its 12 mm everywhere?
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Probably one of the reasons/advantages (no additional supports needed). See the video, it's fascinating. The print speed and size available is just amazing.
Because of boundary layer separation the surface of devices for fluid dynamics should rather be coarse.
So what do you think will be a measurable difference between coarse and smooth/glossy surface?
(We are talking about sub-milimeter coarseness here, just to be clear.)
(We are talking about sub-milimeter coarseness here, just to be clear.)
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I don't see how any roughness small compared to a wavelength could have much of an effect acoustically.
This is true of static flow, but acoustic waves are different and this kind of concept is ill-applied in this situation. There is no static flow, only oscillations.
I have always been interested in porous boundaries as they would have a big effect on all but waves parallel to the surface (the zero mode). In this later case the effect would be smallish, but for HOMs it would be large.
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