Interesting technology. The video showed the easy part. Someone had to do the design work in some software like AutoCAD; then a CAM program had to be used to generate the Gcode to tell the printer what to do, I assume. I do not own a 3D printer, so I am only assuming the process.
The acoustic design in the software he was using.
There is a ton of work involved in this project. Several complex skill sets would be needed.
This makes my electrostatic speaker idea look pretty ancient!...lol
There have been some unusual electrostatic speakers built.
There is a ton of work involved in this project. Several complex skill sets would be needed.
I think that if you buy the 3D-printer files (including the DSP config) from him and use the recommended parts, they should be fairly repeatable without the builder having to do any significant design work. He's done that graft already.
As to how they sound, one rather has to trust what he says and the limited ability of YouTube to demonstrate them. They appear quite good, certainly for the size and cost. The addition of the curved cheeks suggest he understands sound pretty well.
There's no information about if/how the water in plaster dries out and/or if the moisture in it has any consequences in the short or long term. I guess that it stays moist long term and it either doesn't matter of is part of the damping.
They're neatly done and appear quite impressive. The "sub-woofers" have a long throw and a good deep roll-surround, so will certainly try, but inevitably of course, they can't shift a significant volume of air, so they can't be all that loud at the lower frequencies. Some would find they lack volume.
Jazz relative beginner, starting at a much older age than was helpful. Kawai MP6, Korg M50, Ui24R, Saffire Pro 40. AVL:MXE Linux; Windows 11; Win8.1: Scarletts BIAB2022 UltraPAK, Reaper, a bunch of stuff.
I looked at the 3D printer and some software you can get for free. It seems that many people are only running code that others have created.
The free software looks like one could design some useful parts. I do not know what tolerances one could get from one of these machines.
One thing I saw was how to make a gear. That looked pretty simple. Machining a gear is anything but simple on a mill.
I have a small four-axis CNC mill and a CNC lathe.
I worked for about six months in a machine to try to learn some real-world skills on a Haas mill.
I discovered that there is no end to the machines and tools needed to make real stuff. It also became apparent that even with money to burn, commercial CNC machines presented a new problem about every two minutes. I have an engineering friend who has put together a prototype shop and spent enormous amounts of money so he can build stuff he has an interest in. He sold his company and retired at forty, and cashed out with $650,000,000 dollars, so money is not an issue. I have access to his shop, and we have made some stuff together, but there are always problems to solve. Terry is a highly skilled C programmer and knows Solid Works really well. He is a super-intelligent guy, but this CNC world had kicked both of us in the butt on a regular basis.
At that time, I was considering a 3D printer. I got a little burned out on the CNC world. I have more time now, so I may dive back in.
I have wanted to make an R2D2-style robot that played a mechanical guitar for a long time and a robot drummer.
Who knows if I will live long enough to get to and finish those projects?
I still lack fundamental computer programing skills. I have looked at C language in several forms and Python. That is a bit of a steep learning curve for an old guy!
Who knows which way the wind will blow?
Billy
Last edited by Planobilly; 06/23/2303:15 PM.
New location, new environment, new music coming soon
Seize the moo-ment If you feel like you’ve herd all these cow puns before, you probably have deja-moo
I looked at the 3D printer and some software you can get for free.
There's plenty out there, but how good or bad each application is is hard to say without asking the right people or trying it out, which will likely prove hard work.
Originally Posted By: Planobilly
It seems that many people are only running code that others have created.
That's not really surprising as there's quite a bit of learning needed for any CAD system, which is what one needs to make ones own models. I believe that's what the speaker design offers. I use CAD mostly for PCB design, which has additional and different complexities, but these days I do so little that even remembering how to do some things is hard ... I just don't now do them often enough.
Originally Posted By: Planobilly
The free software looks like one could design some useful parts. I do not know what tolerances one could get from one of these machines.
The tolerances will depend on all sorts of things, including the material one is printing.
Originally Posted By: Planobilly
One thing I saw was how to make a gear. That looked pretty simple. Machining a gear is anything but simple on a mill.
I've long admired the double-chevron gear designed('discovered'?) by Andre Citroen and said to be the basis of the Citroen logo.
Originally Posted By: Planobilly
I have a small four-axis CNC mill and a CNC lathe.
I would imagine that you could use the mill to cut most parts of the speaker directly, though whether the work in translating outweighs the cost of 3d-printer and materials I couldn't say.
Originally Posted By: Planobilly
I have looked at C language in several forms and Python. That is a bit of a steep learning curve for an old guy!
It is and there are many "gotchas" too. I've been programming for about 50 years now, so I know most of them and don't often get caught out, but I well remember spending many hours, years ago, chasing bugs that today I rarely get, mostly because I've learned how to avoid them in the first place. And I still have bugs.
Somewhere(!) I have a, sadly rather blurry, photograph of a Steam-Punk R2D2, complete with wood shuttering around the body, loads of polished copper and brass and a little 'coal fire' effect in the base.
One of the things 3D printers can do, of course, is closed or near-closed objects that would be impossible to machine in one piece.
Jazz relative beginner, starting at a much older age than was helpful. Kawai MP6, Korg M50, Ui24R, Saffire Pro 40. AVL:MXE Linux; Windows 11; Win8.1: Scarletts BIAB2022 UltraPAK, Reaper, a bunch of stuff.
Jazz relative beginner, starting at a much older age than was helpful. Kawai MP6, Korg M50, Ui24R, Saffire Pro 40. AVL:MXE Linux; Windows 11; Win8.1: Scarletts BIAB2022 UltraPAK, Reaper, a bunch of stuff.
It actually never occurred to me to make the robot out of wood. That was good information.
Back to the general subject, I do have in mind to make a pair of electrostatic speakers. Part of that is a high-quality woodworking project. I have been slowly collecting some woodworking equipment. Some things like the table saw are good machines. Other things are make-do tools.
The video Trev posted was interesting to me, even though I have no interest in making that sort of speaker.
The three-string guitar projects that I am currently dealing with are the first "fun" woodworking projects.
I need a band saw and a jointer. There are good ones used for sale around my area. I will find one soon.
I need a ten car garage and a one-bedroom house. Somehow my wife does not share my thinking...lol
Billy
New location, new environment, new music coming soon
Seize the moo-ment If you feel like you’ve herd all these cow puns before, you probably have deja-moo
Some things like the table saw are good machines. Other things are make-do tools.
A couple of good routers and some carefully made jigs can do an awful lot. I have a 1/2" ELU and a small Makita kit with a selection of bases.
Jazz relative beginner, starting at a much older age than was helpful. Kawai MP6, Korg M50, Ui24R, Saffire Pro 40. AVL:MXE Linux; Windows 11; Win8.1: Scarletts BIAB2022 UltraPAK, Reaper, a bunch of stuff.
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Update your Band-in-a-Box® 2024 for Windows for free with build 1111!
With this update, there's more control when saving images from the Print Preview window, we've added defaults to the MultiPicker for sorting and font size, updated printing options, updated RealTracks and other content, and addressed user-reported issues with the StylePicker, MIDI Soloists, key signature changes, and more!
A few excerpts:
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