With the following post I would like to put an idea up for discussion. Anyone who would like to participate is welcome. Even if it is torn in mid-air. But then this is an honest picture of the opinions, that is not wrong. Roughly speaking, I am concerned with the topic of spherical wave horns or horns with a different contour (tractrix, exponential, ...). I have been fascinated by this topic for over 25 years. It was then that I heard the Avantgarde Trio for the first time, and some people here are probably familiar with them. Then as now, however, they are beyond my means. I guess I'm not alone like that. That is why I started making my first attempts many years ago. Solutions made of styrofoam + plaster and wood were implemented. But were never really convincing, especially because of the modest appearance. I put the subject aside because it just wasn't satisfactory to implement. Several years have now passed. The technical possibilities have made a huge leap during this time, the interest has remained. However, I had to observe that the market for these special solutions has not really changed. There are a few providers (Jabo, ...) that offer horns for self-assembly. However, there are always a few predefined models without the possibility of influencing. I had decided for myself that I didn't want to go this way, but rather that I would like to implement what I think myself. I.e. construction of the horns, production, ... The effort involved is not insignificant. However, it is not completely impossible through additive manufacturing (3d printing). It seems feasible to me to implement this. In the course of my deliberations, the question arose whether the effort might not also be of interest to others. The market for this is small, but the world is big. And the advantage of user-specific production is not insignificant. However, this is a chicken and egg problem. You would have to make considerable advance payments to put the whole thing on a broad footing. That is why I had the idea or the suggestion to discuss this project as a crowdfunding project. In my opinion, this would be a good indicator of whether the time and financial investment is worthwhile. How do you see it? Is it just a special interest on my part? Or is it quite the opposite? It is clear that the implementation could never go through to the finished loudspeaker system. That is beyond my capabilities. Rather, it is to be understood as a supplier part for do-it-yourself construction. So in the ideal case an untreated horn which can be used by the respective user in their own application. While that's not much, it is more than has been around for years. At least that is my view of things. Because the adaptation to e.g. special geometrical conditions cannot be made with the usual ABS injection molding. However, my solution would also have its price; this cannot be done with the pure material value. I would appreciate honest feedback / contributions / ideas. If they're entirely negative, that's okay. I would then do it for myself.
Thank you very much.
Stephan
Thank you very much.
Stephan
My major question from a feasibility standpoint is whether you intend to have them commercially printed or if you anticipate the end user printing their own horns? Each path typically has its own issues.
If commercial printing, the prices tend to be quite high for large pieces.
Many individuals have relatively small printers, so that presents another limit.
Or have I misinterpreted something about your intended design or general idea?
If commercial printing, the prices tend to be quite high for large pieces.
Many individuals have relatively small printers, so that presents another limit.
Or have I misinterpreted something about your intended design or general idea?
The idea was to do printing for the end users. The setup needed is very specific. Otherwise you are not able to do it in a reasonable amount of time. That is why I'm looking for seed capital to parallize the build flow (10keuro is a good goal for initial crowding funding, what is comparable low in relation to other auctions.). Typical commercial 3d printing services cannot be used for this. Here in Germany a typical part of 20cm x 20cm x 2cm costs > 150euro. This scales up to an enormous amount of money.
Of course the horn has to by sliced into parts. But this is not as complicated as it looks. Because there are many equal parts if done correctly. I'm testing this at the moment.
Of course the horn has to by sliced into parts. But this is not as complicated as it looks. Because there are many equal parts if done correctly. I'm testing this at the moment.