I have no idea about the price, but it sure looks and feels expensive, and is a pleasure to use🙂
Sorry but I don't think I can give any advice on that. There are plenty of people on this forum who know much more than I do about CNC machines. I remember seeing discussion on home use CNCs at least in fluid's 2 way waveguide speaker thread.
https://www.diyaudio.com/community/...e-speaker-build-abec-modelling.357792/page-17
Sorry but I don't think I can give any advice on that. There are plenty of people on this forum who know much more than I do about CNC machines. I remember seeing discussion on home use CNCs at least in fluid's 2 way waveguide speaker thread.
https://www.diyaudio.com/community/...e-speaker-build-abec-modelling.357792/page-17
I am building the equivalent of one of these. Hard to beat the price but there is a lot of work, mine still isn't going.
https://bulkman3d.com/product/queenbee-pro-cnc-mechanical-kit/
PrintNC is another good option to look at
https://wiki.printnc.info/#:~:text=...,community participation is highly encouraged!
Still some MDF work left, mainly for the Speakon panels for the back, but it's nice to see them with all drivers mounted drivers for the first time. I intended to apply a layer of epoxy sealer before the measurements, but now that I see them like this, I don't think I have the patience. 🙂
Thank you Martin. I think they look pretty good, and hopefully measure and sound as well. Let's see... The design was inspired by Zvu's project which uses R line UniQ drivers and 7"(?) woofers in a similar configuration.
Wow, Great work!
Gets me inspired to continue to do something with my KEF drivers.
Had my brother printing a shadow flare to the old R-series long before the newer R-series came out. Thought that it might look and maybe even sound better than the old trim ring, if implemented correctly (lager diameter vs original trim ring)
The KEF cone was carefully measured with an optical measurement equipment that we have at work. Pretty sure the cone shape is exactly the same for both the "1632" as the "1753"
Never finished...
I Also have a pair of the newer KEF driver from the Rx-series "1753".
A OD Ø 200 mm aluminum milled from a 12 mm thick plate. Wider and a little deeper vs the org shadow flare (Ø 172 mm)
MrSticha: Not interested in doing something later on with the newer KEF driver?
Gets me inspired to continue to do something with my KEF drivers.
Had my brother printing a shadow flare to the old R-series long before the newer R-series came out. Thought that it might look and maybe even sound better than the old trim ring, if implemented correctly (lager diameter vs original trim ring)
The KEF cone was carefully measured with an optical measurement equipment that we have at work. Pretty sure the cone shape is exactly the same for both the "1632" as the "1753"
Never finished...
I Also have a pair of the newer KEF driver from the Rx-series "1753".
A OD Ø 200 mm aluminum milled from a 12 mm thick plate. Wider and a little deeper vs the org shadow flare (Ø 172 mm)
MrSticha: Not interested in doing something later on with the newer KEF driver?
Nice work @nusse ! That aluminium flare is a beauty. What kind of optical tool did you use for measuring the cone profile? I used a 3D scanner (Artec Eva), which had some trouble recording the highly reflective Al cone. I had to filter out quite a lot of scan data, but eventually I got quite good fit based on checking the shape with cross-sections printed on paper.
I don't really have plans beyond these q100 drivers, but I included a removable MDF ring below the flare so that there is freedom to test different flare shapes and coax drivers in the future.
I don't really have plans beyond these q100 drivers, but I included a removable MDF ring below the flare so that there is freedom to test different flare shapes and coax drivers in the future.
@xorcz I just put the driver on the table and did a height-measurement every mm from the tweeter till the end of the surrounding (the red line in the picture). Then I hade the SW extend the curve 🙂
Below: Bad image (x-section of midrange cone and out) Blue curve is very much like the org R3 shadow flare (I have a pair). And the grey line ending in the upper right corner is the new in aluminum.
Below: Bad image (x-section of midrange cone and out) Blue curve is very much like the org R3 shadow flare (I have a pair). And the grey line ending in the upper right corner is the new in aluminum.
Nice stuff. Would it be possible to post the measured profile of the cone? I have a pair of the older coaxials without the rings and would like to perform a few simulations prior to sorting out the workshop. Many thanks.
Hi, Is it the previous driver from the Rx00- series that you have "SP 1632"? Let me know and I will find the data.
Yes it is part SVC + SP 1632 (i.e. with tweeter) but without the ring which seemed too expensive given I was likely to make my own. It was bought for a built in flush mounted project that didn't happen and is now intended for an alternative subject to working out a design.
Sorry. Forgot this. Don't know where the first measurement is. See if the attached files helps.
I measured SP1716 with modified contour gauge/duplicator, made a picture,
put it in Fusion
and got the profile.
Now I think how to extend it. I played blindly and without any simulation with Mabat R-OSSE formula to match the shape.
https://www.desmos.com/calculator/djbcuw3n53
put it in Fusion
and got the profile.
Now I think how to extend it. I played blindly and without any simulation with Mabat R-OSSE formula to match the shape.
https://www.desmos.com/calculator/djbcuw3n53