Open source Waveguides for CNC & 3D printing! - Page 33

Guerilla · 10th February 2019, 09:50 AM

I havent seen it anywhere, but shouldnt phaseshields be starshaped instead of round?

augerpro · 11th February 2019, 12:50 AM

Rokytheman> the SB26 designs are all the same, regarding dome material. Basically I measure the metal domes first, then cut off the phase shield and measure the fabric dome, and remeasure the metal domes. I'll get some non-PS versions up, your right that it might risk a failed print.

kalleDH> The phase shield was damaged on that print so I never measured it. Next session I will measure it anyway with the phase shield.

Guerrilla> I did a bunch of phase shield variants early on, including the scalloped version below. There was only minor differences versus a simple disc of the same diameter (tested .47" and .25" diameter versions).

Arnandsway · 15th February 2019, 05:28 PM

Awesome project, many thanks.

What kind of materials are recommended for 3D-printing a waveguide?

Mayuri · 16th February 2019, 10:24 PM

Slightly modified 6" waveguide to fit the ScanSpeak R2604. Works nicely!

manudrz · 17th February 2019, 08:27 PM

A little off-topic-question, sorry for that...
I want to design wave-guides (and rear-mont) for fullrange Vifa TC9FD18. What shape/profile would you use for that ?

Mayuri · 17th February 2019, 08:42 PM

I would use more of a diffraction control than a real waveguide. Maybe a torus shape with TC9FD in the middle?

jarkaa · 20th February 2019, 10:38 AM

Hi Augerpro,

When I opened the 5x.75 G v5.stl file in a viewer it show the size as:

6x4x1 in millimeters. Would it be possible to get the file in real size?

Also question for those who are capable of modifying the files. Would it be possible to modify the 5inch guide for Seas 27tdfc?

Keep up the good work!

Mayuri · 20th February 2019, 12:27 PM

Quote:

Originally Posted by jarkaa

6x4x1 in millimeters. Would it be possible to get the file in real size?

Also question for those who are capable of modifying the files. Would it be possible to modify the 5inch guide for Seas 27tdfc?

Keep up the good work!

The size is in inches, you need to convert to metric. It can be hard or easy to modify the waveguide, depends on the geometry of the new tweeter.

Rokytheman · 21st February 2019, 05:39 PM

Augerpro: Cool! I just got confused

11th February 2019, 12:50 AM	#322
augerpro diyAudio Member Join Date: Aug 2006	Rokytheman> the SB26 designs are all the same, regarding dome material. Basically I measure the metal domes first, then cut off the phase shield and measure the fabric dome, and remeasure the metal domes. I'll get some non-PS versions up, your right that it might risk a failed print. kalleDH> The phase shield was damaged on that print so I never measured it. Next session I will measure it anyway with the phase shield. Guerrilla> I did a bunch of phase shield variants early on, including the scalloped version below. There was only minor differences versus a simple disc of the same diameter (tested .47" and .25" diameter versions). __________________ ~Brandon DriverVault Soma Sonus

20th February 2019, 10:38 AM	#327
jarkaa diyAudio Member Join Date: Feb 2004 Location: Tampere	5" waveguide Hi Augerpro, When I opened the 5x.75 G v5.stl file in a viewer it show the size as: 6x4x1 in millimeters. Would it be possible to get the file in real size? Also question for those who are capable of modifying the files. Would it be possible to modify the 5inch guide for Seas 27tdfc? Keep up the good work!

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10th February 2019, 09:50 AM	#321
Guerilla diyAudio Member Join Date: Feb 2018 Location: Aalborg Denmark	I havent seen it anywhere, but shouldnt phaseshields be starshaped instead of round?

15th February 2019, 05:28 PM	#323
Arnandsway diyAudio Member Join Date: Nov 2018	Awesome project, many thanks. What kind of materials are recommended for 3D-printing a waveguide?

17th February 2019, 08:27 PM	#325
manudrz diyAudio Member Join Date: Feb 2012 Location: Fougères	A little off-topic-question, sorry for that... I want to design wave-guides (and rear-mont) for fullrange Vifa TC9FD18. What shape/profile would you use for that ?

17th February 2019, 08:42 PM	#326
Mayuri diyAudio Member Join Date: Mar 2009 Location: Finland	I would use more of a diffraction control than a real waveguide. Maybe a torus shape with TC9FD in the middle?

21st February 2019, 05:39 PM	#329
Rokytheman diyAudio Member Join Date: Jul 2009	Augerpro: Cool! I just got confused