It is already some years ago that I tried to find a company to make a prototype following my first William Neile ALO profiles.
The company in question had previously made a good impression on me and I therefore offered to pay the material costs for the prototype with the permission to produce a number of horns to be determined free of charge after evaluation by me. So I send him my design and many months later I finally received these status updates:
Video from CNC milling (zip),
and these pictures:
There was only one small open question concerning the adapter, but this was a minor issue as a simple thin metal plate would do the job.
Then I got what I would call a fake tracking number. All my mail and sms request did not got any further answer. The guy suddenly became very silent. I never received any prototype!
So the valid question from my side is: Have them appeared somewhere? If so, this is a stolen design.
The only positive thing for me is that my calculator had a programming error which produced slightly wrong profiles and later another breakthrough was found by using different flare functions. But besides this, those horns already had very good loading and DI control.
Please don't ask for the company name. I will not disclose it.
The company in question had previously made a good impression on me and I therefore offered to pay the material costs for the prototype with the permission to produce a number of horns to be determined free of charge after evaluation by me. So I send him my design and many months later I finally received these status updates:
Video from CNC milling (zip),
and these pictures:
There was only one small open question concerning the adapter, but this was a minor issue as a simple thin metal plate would do the job.
Then I got what I would call a fake tracking number. All my mail and sms request did not got any further answer. The guy suddenly became very silent. I never received any prototype!
So the valid question from my side is: Have them appeared somewhere? If so, this is a stolen design.
The only positive thing for me is that my calculator had a programming error which produced slightly wrong profiles and later another breakthrough was found by using different flare functions. But besides this, those horns already had very good loading and DI control.
Please don't ask for the company name. I will not disclose it.
Ouch, that's a harsh story... Kind of hoping they never turn up anywhere. Is there a chance something happened to the maker?
Hope you have found a more reliable source to produce horn prototypes since then.
Hope you have found a more reliable source to produce horn prototypes since then.
Quite impressive CNC where the prototype was milled. Would be capable to produce a lot of copies...