"Robert McGregor" <rob### [at] mcgregorfineartcom> wrote:
> "Kenneth" <kdw### [at] gmailcom> wrote:
>
> > Would the real-life project be easier (and still perform as intended) if the
> > blocks were made from some kind of plastic foam, instead of wood?
>
> I don't think so, the mass of the wood helps to scatter the sound waves, lighter
> materials don't work as well.
>
> > I also play in a classic-rock band; but for the past nine months, we have
> > managed to play only about once per month, and only *outside* due to safety
> > precautions re: Covid-19. (And we all wear masks except when performing/singing
> > on-stage.) Still not a truly safe environment, I admit. Personally, I would have
> > preferred to stay safe at home instead. But I was out-voted :-\
>
> Yeah, I opted to stay home
>
> > Our band's bass-guitar player is currently setting up a home recording studio;
> > I'll tell him about your experiment.
>
> This is render of a 1D QRD design based on prime number 13, also a 2x4 foot
> profile. The diffusion range isn't quite as wide (~520 Hz to ~4500 Hz) but it's
> a LOT easier to build, and sounds really good in a small space. I built three of
> these a couple of months ago. The the wells are 6" deep and 1.5" wide, with
> 0.25" wide slats. Blocks for the wells are symmetrical and simple to cut and
> glue at depths (in inches, from my POV file):
>
> #declare BlockScale = array[13] {
>    1.0,
>    0.001,  // 0 IRL
>    4.5,
>    1.5,
>    4.0,
>    5.5,
>    6.0,
>    5.5,
>    4.0,
>    1.5,
>    4.5,
>    0.001,  // 0 IRL
>    1.0
> }
>
>
> Cheers,
> Rob

Both look great ! Would you mind it if I Shared the pictures on Facebook with
proper credit and your small explanation of what they are?
If so I would ask you: Did you use front end 3D editor(s) or not at all?
depending on it I would share on one group or the other.
I like to advertise elsewhere as I noticed many people
don't come here and still enjoy  getting to see what is actually achieved with
POV.

Post a reply to this message