Very powerful tool indeed. Lets see if my laptop can eat the ABEC project over night, looks expensive to compute. Funky lookin device, could plow snow on the driveway with it 😀
it took only10 minutes on my 12 core Ryzen and the results are not pretty. Trying again at higher resolution...
The provided model is kept within reasonable limits, it's still only 400 x 345 mm, under 4500 BEM elements.
- It may also not solve correctly simply due to some model issues. It's already quite a weird geometry that may require some adjustments. Unfortunately it's not always so simple.
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People think printing large horn (here Iwata 300) is easy. It is not - lot of hours to make it printable fast and inject concrete inside. I hope Jan Herich and his Chisel slicer will help use achieve light and stiff waveguides/horns/enclosures.
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I'm actually extremely happy with the latest fillable quarter petal construction: https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7063036
It's still some manual work (it's a DIY after all) but I would even call it easy.
It's still some manual work (it's a DIY after all) but I would even call it easy.
I've tried print the Iwata 300 throat plus 4 petals. Nightmare to glue, sand, smooth. 300Hz horns rings like bell. Small waveguides you make are different shape.
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Anyway, good helper locks are essential for a smooth and easy assembly. With the petal side locks (https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7063067) together with the base jig (https://www.diyaudio.com/community/...-design-the-easy-way-ath4.338806/post-7022703) it's really a no-brainer now. Well, at least that is my experience. Of course it took me some time to get there, having a very little experience with 3D printing initially.
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Hi All,
ATH looks like an incredible program. Thank you mabat for putting so much work into this and improving it as well.
I’m trying to get started with ATH 4.7.0 but can’t seem to get it running correctly. It processes the demo1.cfg file but I get DOS errors when ATH tries to run gmesh. I believe that it's because the command string is using single quotes but not sure. Below is the output when running ATH:
D:\Users\Bob\Documents\Speakers\Design Software\ATH\ath-4.7.0>ath demo1.cfg
Ath 4.7.0
--------------------------------------------------
Freeware version for personal non-commercial use
--------------------------------------------------
-destination directory: D:\Users\Bob\Documents\Speakers\ATH Horn Designs\demos\demo1
-initializing
-fixed length: 94 mm
-calculating profiles
-writing ABEC project
-writing geo file bem_mesh.geo
-final mesh average throat angle: 7.000 deg
-matched wavefront radius: 104.21 mm
-running 'C:\Program Files\gmsh-4.10.5-Windows64\gmsh.exe bem_mesh.geo -'
'C:\Program' is not recognized as an internal or external command, operable program or batch file.
-setting mesh elements for radial drive
-running 'C:\Program Files\gmsh-4.10.5-Windows64\gmsh.exe mesh.geo -'
'C:\Program' is not recognized as an internal or external command, operable program or batch file.
-exporting grid ''
Done.
Final width x height = 253.6 x 253.6 mm (9.986 x 9.986")
Final length = 94.0 mm (3.701")
Here is the mesh line in the ath.cfg file: MeshCmd = "C:\Program Files\gmsh-4.10.5-Windows64\gmsh.exe %f -" The path is correct.
Is there something simple I’m doing wrong? Is there an ath for beginners thread somewhere? I haven’t found one yet (I have read through the UserGuide several times but can’t figure this problem out.
Thanks for any help that can be offered.
Bob
ATH looks like an incredible program. Thank you mabat for putting so much work into this and improving it as well.
I’m trying to get started with ATH 4.7.0 but can’t seem to get it running correctly. It processes the demo1.cfg file but I get DOS errors when ATH tries to run gmesh. I believe that it's because the command string is using single quotes but not sure. Below is the output when running ATH:
D:\Users\Bob\Documents\Speakers\Design Software\ATH\ath-4.7.0>ath demo1.cfg
Ath 4.7.0
--------------------------------------------------
Freeware version for personal non-commercial use
--------------------------------------------------
-destination directory: D:\Users\Bob\Documents\Speakers\ATH Horn Designs\demos\demo1
-initializing
-fixed length: 94 mm
-calculating profiles
-writing ABEC project
-writing geo file bem_mesh.geo
-final mesh average throat angle: 7.000 deg
-matched wavefront radius: 104.21 mm
-running 'C:\Program Files\gmsh-4.10.5-Windows64\gmsh.exe bem_mesh.geo -'
'C:\Program' is not recognized as an internal or external command, operable program or batch file.
-setting mesh elements for radial drive
-running 'C:\Program Files\gmsh-4.10.5-Windows64\gmsh.exe mesh.geo -'
'C:\Program' is not recognized as an internal or external command, operable program or batch file.
-exporting grid ''
Done.
Final width x height = 253.6 x 253.6 mm (9.986 x 9.986")
Final length = 94.0 mm (3.701")
Here is the mesh line in the ath.cfg file: MeshCmd = "C:\Program Files\gmsh-4.10.5-Windows64\gmsh.exe %f -" The path is correct.
Is there something simple I’m doing wrong? Is there an ath for beginners thread somewhere? I haven’t found one yet (I have read through the UserGuide several times but can’t figure this problem out.
Thanks for any help that can be offered.
Bob
Space in a folder name anywhere on the path breaks it. Rename your ATH horn designs folder to ATH-horn-designs or something. Also Design Software folder seems to be there. Program files for gmesh should work I think, if not move that one to a spaceless path as well.