Despite everything. I will now post pictures of the progress of my project here. My intention is to build a Planar Bass panel. as a friend this gets a planar midrange and treble line sources.
One piece of advice I can give. If you can’t find a huge amount of patience. don't even think about this.
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Nice job🙂. I'll try to follow later at the spring, now have other jobs to do. But I will follow...😉
Some off-topic posts have been moved to - 
Apogee like Planar Magnetic
APOGEE "like" Planar magnetic - Part 2 - plot cut attempt 1 and 2 - YouTube
APOGEE "like" Planar magnetic - Part 2 - plot cut attempt 1 and 2 - YouTube
Up to part 7 now, a very entertaining watch. Joppe is is very capable and uses a CNC machine to both build the frames as well as cut the membranes (drivers). Nothing I'd ever be tempted to do. Imagine all of this being done in the 80's/90's before computers were used!
well thank you. but the result is ... well mediocre to be honest. i know its a small panel but i can do better with typical planar 🙁 of the same size. maybe not rach as low. but at least with far less distortion 🙁
allot of things did not work out as i planned. or think it supposed to work either 🙁
allot of things did not work out as i planned. or think it supposed to work either 🙁
Don't beat yourself up too much - this was your first effort! As I tell my 8 year old daughter, practice makes perfect - rarely does the first time ever turn out right. 😉
Well, there were pictures in the Hifi News & Record Review back then in the 80's, showing how they cut the aluminium foil and sealed the gaps with tape. Later, I think the started using a laminate of plastic film (Kapton) and aluminium, probably etching the "cuts". That is how Eminent Technology is doing it. A friend of mine tried that technique as well but never finished his project.
well e thing or cutting both are the same 🙂 , down side depending on the design when ethcing is the glue is left behind. most plotting/cutting to but in my latest attempt that is completely different then the apogee side ways coil.. uses only glue on the alu parts. the rest is clear mylar.
uploaded video 7 and 8 🙂 it plays allot better then the apogee style i made before.. the insane failed one. although i must admit i managed to drop my allen key in the magnets twice... 🙁
uploaded video 7 and 8 🙂 it plays allot better then the apogee style i made before.. the insane failed one. although i must admit i managed to drop my allen key in the magnets twice... 🙁
Here are pictures of the bass diaphragms from Clarisys that I just installed on my left Duetta speaker, one more to go🙂. Clarisys use white felt for the damping material around the edge of the diaphragm like felt used on a piano to damp strings. In my opinion the diaphragm looks like the original.
Andrew
Andrew
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Felt? I would think it would be overdamped for one and unable to fill in the uneven panel consistently and completely, like foam. Why not use a modern foam - similar damping, similar complete contact, lasts a lifetime.
You need to take some measurements with a signal generator to see the response.
You need to take some measurements with a signal generator to see the response.
Yeah you would think you'd want something more "spongey" that moves with the panel, not something rigid like felt. An odd choice and a graph would be ideal.
Foam or felt is compressed when the panels are glued and screwed down so any ridges in the panel are flattened.
I'll measure them at some point, just gonna take a while. I will post when I do the measurements.
I'll measure them at some point, just gonna take a while. I will post when I do the measurements.
No, the foam is not compresed beyond its function. There's a ridge (rabbit) where it rests to keep it mostly uncompressed.
It looks like Clarisys offers a foam kit. In appearance, it looks similar to the foam stripping used to seal windows. Is this the felt you speak of? $1200 for a pair of Caliper Sig panels sounds reasonable. I'm very interested on your results and comments on the install.
OK, maybe you should ask Clarisys. I'm not here to defend the way they damp their bass panels. I'm just letting people know that there are Apogee diaphragms available from other suppliers. There always the other supplier where you have to pay to get it installed, you take your chances either way.
I am very glad to see all the unique and creative talents in this thread, all with wonderful results. We use felt because it does not rot over the years and works perfectly fine for rebuilds and also on our new and upcomming speakers. Of course, if someone doesnt "trust" the felt, he can choose to use foam, its DIY after all 🙂 --- Keep enjoying it - Florian
PS: My Grands, and the Divas i restored for my friend also use the felt to no ill effects.
PS: My Grands, and the Divas i restored for my friend also use the felt to no ill effects.
Those panels are beautifully made and nice to know people have another option for the diy crowd and not over priced for what you get
Interesting these have a V notch cut on one side and a round cut on the other
More movement area on the V cut side I,m guessing
One could literally make a complete clone with these panels with the information in this thread.
It’s actually a very simple speaker when you look at all the pieces.
Interesting these have a V notch cut on one side and a round cut on the other
More movement area on the V cut side I,m guessing
One could literally make a complete clone with these panels with the information in this thread.
It’s actually a very simple speaker when you look at all the pieces.