Quote:
Originally Posted by
dreadsquad
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hey. great work with diffuser blueprints. i couldn't find vector blueprint for cutting fractal diffusers from XPS so i did one myself. first one is like the original 42cm wide and the other is rescaled to 50cm to fit my absorbing panels. from one sheet of XPS (125x60x10cm) you can make 1.5 m2 of fractal diffusers 50cm wide.
i plan stack and glue those 10cm pieces together. what do you think about this idea? i will try it out next few days.
https://gearspace.com/board/attachme...s-cutting-.zip
Thanks so much for posting these vector blueprints! I like how efficiently you've utilized the space on each sheet.
For some reason I could only open the 50cm wide .cdr file (I got an error when trying to open the 42cm wide one).
Yes, I think stacking and glueing these together would work.
Now, a real challenge would be to build these out of something other than expanded polystyrene. I think it's nasty stuff but it just so happens to be one of the easiest materials for implementing this complex Stepfractal design. That's something I should have considered before posting the designs for such a complex diffuser shape.
Anyway, it's my responsibility to suggest an alternative to people, so I'm going to start suggesting A1-Frac "The Leanfractal" as a simpler and more elegant alternative to B2-Frac. A1-Frac actually has better diffusion performance than B2-Frac... IF you mount the A1-Frac modules using one of the Profiled Modulation schemes given in the A1-LF fabrication drawings.
You can see an image of an A1-Fractal diffuser module on the
homepage here. The base shape can be built using the A1-LF blueprints, and the fractal cells can be built in a variety of different ways (Schaap build them using a milling machine and has posted some fractal diffuser photos
like these throughout this thread). I've attached his photos to this post for easy viewing.
Thanks for posting these files and please let us know how the project goes!
Tim
Photos below are of the fractal diffuser (A1-Frac / The Leanfractal) built by Schaap.