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Klangfilm spherical wave horn calculator - from round to elliptical
Klangfilm spherical wave horn calculator - from round to elliptical
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Old 14th March 2019, 07:39 PM   #91
docali is offline docali  Germany
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Quote:
Originally Posted by Patrick Bateman View Post
Click the image to open in full size.

You can get nice results by using two horn profile, rotating each one by about thirty degrees, then smoothing the results.

You wind up with a profile that's similar to the JBL progressive transition waveguide.

Click the image to open in full size.
Basically you want the beamwidth to be longer on the diagonal. The net result, based on my measurements and sims, is that the resulting waveguide has *wider* beamwidth. Which is a bit non-intuitive, that narrowing the vertical and horizontal parts of the waveguide actually *widens* the beamwidth.
These strange looking JBL waveguides. We can use a mathematical function that was suggested by Giovanni Domenico Cassini and play around with some parameters then we can get this here:

drba_r18.JPG

drba_r19.JPG
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Old 14th March 2019, 11:32 PM   #92
Patrick Bateman is offline Patrick Bateman  United States
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Originally Posted by pinkmouse View Post
Yup, it is, but you can set an offset in your slicer for different material presets, (I've done it using Cura and Prusa Slic3r, I know it works in S3D as well, and probably most others). and never have to do a level again. I set it with the pre-print initialization g-code, as a line after the auto level commands.

I use my printers for lots of things, so the purple diy job will stick with 0.4 for now, the JG will get a Volcano and 0.7-0.8 for big/fast stuff, and I'm not sure about the Big IDEX job I'm currently designing.
I'll take a look at my settings, thank you!
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Old 14th March 2019, 11:33 PM   #93
Patrick Bateman is offline Patrick Bateman  United States
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Quote:
Originally Posted by docali View Post
These strange looking JBL waveguides. We can use a mathematical function that was suggested by Giovanni Domenico Cassini and play around with some parameters then we can get this here:

Attachment 742828

Attachment 742829
WOULD YOU JUST TAKE MY MONEY ALREADY

Set up a gofundme or something, I need this software
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Old 15th March 2019, 07:37 AM   #94
docali is offline docali  Germany
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Thanky you for the flowers:

drba_r23.JPG

drba_r24.JPG

drba_r25.JPG

But this is currently "only" a theoretical work without practical justification. Pleae be patient.
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