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Open source Waveguides for CNC & 3D printing!
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Old 10th January 2021, 03:47 PM   #761
Todd Williams is offline Todd Williams
diyAudio Member
 
Join Date: Aug 2020
Thanks to augerpro and others for their initiative and creativity on this fantastic effort. I have made a contribution to augerpro’s GoFundMe campaign.

I recently completed a SB15CAC30-04 and SB26CDC two-way for my son using the 5” waveguide design that was printed by my other son in matte white. He wanted a small speaker with the “all-white” designer look and the SB15CAC30-04 modelled the “smallest” cabinet of the candidate midwoofers. See picture below.

I’m very happy with the sound of these. Crossover is about 2500 Hz. This was my first design with a waveguide and I plan to do more. Happy to share crossover details if anyone is interested.

I was able to use the router template generously posted by BearX. I mounted the tweeter to the waveguide using “threaded rod” cut from a machine screw and set with epoxy into the waveguide. Pictures are posted below for anyone who has concerns or questions about how this is done.

Sorry if the picture orientation seems odd - I couldn't sort out how to upload the correct orientation.

Todd
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File Type: jpg IMG_7239.jpg (452.3 KB, 182 views)
File Type: jpg IMG_7236.jpg (440.8 KB, 177 views)
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Old 10th January 2021, 04:02 PM   #762
Todd Williams is offline Todd Williams
diyAudio Member
 
Join Date: Aug 2020
As I indicated in my previous post, I plan to do a couple more waveguide designs:
• One using the SB26CDC in a 6” waveguide with an MW16P-8, and
• One using the Peerless/Vifa OT19NC with an SB15NBAC-8.

Question for augerpro: The 5” waveguide model filename shown in the Peerless/Vifa OT19NC page of the somasonus website is “5x.75 A SS19 V2” which is the same filename as the 5” model in the ScanSpeak Revelator D2104/7120 page. Are the two files identical, or is there a different model and filename for the 5” waveguide model for the Peerless/Vifa OT19NC?

Thanks,

Todd
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Old 10th January 2021, 11:41 PM   #763
augerpro is offline augerpro  United States
diyAudio Member
 
Join Date: Aug 2006
The Vifa fit perfect with the Scanpeak waveguide, so used it for both.

Great looking speakers! Definitely a great way to introduce your son to the hobby.
__________________
~Brandon
Please help my waveguide and box construction research by donating to my gofundme via my website:Soma Sonus
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Old 10th January 2021, 11:59 PM   #764
Todd Williams is offline Todd Williams
diyAudio Member
 
Join Date: Aug 2020
Thanks, Augerpro. I will proceed with the 5" waveguide for the Vifa tweeter

Todd
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Old 12th January 2021, 03:51 PM   #765
aznowicz is offline aznowicz  France
diyAudio Member
 
Join Date: Mar 2015
Location: Lille
Hello

Here is a first print with help from NicoB for 3D modeling.
Still some work to do (fine tuning, sanding and painting...).
But first listening tests are just amazing.

Sb17 nbac (400Hz - 1800 Hz for now)
Sb26 adc
4th order LR slopes

Sb23 for bass duties in 40L BR box

Big thank you for your work, giving me the opportunity to create something really special Open source Waveguides for CNC & 3D printing!

Best regardsFB_IMG_1610466416903.jpg
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Old 12th January 2021, 05:28 PM   #766
NicoB is offline NicoB  France
diyAudio Member
 
Join Date: Feb 2012
Yes , attached the next one lol, finally we do a plain front, tweeter fixation rotate 45° for be able to plug/unplug when tweeter is mounted, printed tweeter fixation larger than existing one, rear hole for pass Allen key...

glue in one piece then surface treatment + painting for both of us.

For me SB26ADC + Sica 6.5 H 2 CP + doble passive SB16PFCR-00
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Old 12th January 2021, 08:41 PM   #767
454Casull is offline 454Casull  Canada
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
Quote:
Originally Posted by aznowicz View Post
Hello

Here is a first print with help from NicoB for 3D modeling.
Still some work to do (fine tuning, sanding and painting...).
But first listening tests are just amazing.

Sb17 nbac (400Hz - 1800 Hz for now)
Sb26 adc
4th order LR slopes

Sb23 for bass duties in 40L BR box

Big thank you for your work, giving me the opportunity to create something really special Open source Waveguides for CNC & 3D printing!

Best regardsAttachment 910951
Although I'm not in love with that printed finish, I can tell the amount of effort that went into the work. Congrats!
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