Latest changes to the cone design.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
ghemml,
Good to see your continued efforts to improve the drivers. 🙂
From a driver designer/maker perspective, what were you aiming to achieve with the new cone? Any measurements and/or subjective feedback on the the drivers now?
Good to see your continued efforts to improve the drivers. 🙂
From a driver designer/maker perspective, what were you aiming to achieve with the new cone? Any measurements and/or subjective feedback on the the drivers now?
The embossing is to help cone breakup. As for my users feedback, i didn't got time to record down what they said. Quite busy on my tooling and other work.
Maybe someone from diyaudio.com would want to do a review for me.
Maybe someone from diyaudio.com would want to do a review for me.
For a review, one would need your drivers. 🙂 Then maybe have to build a proper cabinet.
I offer special price for interested buyers if they able to help me do a review write up.
I seldom post here, but i could be reach at
Gamut Magnetic Laboratories - GML Loudspeakers - Home | Facebook
I seldom post here, but i could be reach at
Gamut Magnetic Laboratories - GML Loudspeakers - Home | Facebook
Thanks
Some of the other development design on Alnico magnet.
Some of the other development design on Alnico magnet.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
I´m curious about your Magnetizer , care to share a couple pictures?
What about the yoke? Do you magnetize fully built speakers or just the magnetic circuit and then bolt it to frame?
What about the yoke? Do you magnetize fully built speakers or just the magnetic circuit and then bolt it to frame?
Magnets are magnetized when they are shipped out to me, then assembled to the yoke, using piston guide.
I been thinking of getting a magnetizer too.
I will show u how i get the magnetized magnet onto the yoke when i back in my office.
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This is how I install and assemble a charged magnet onto the motor. I not sure anyone will be interested in this.
There are 2 Jig poles are you can see from the photo below:
The 1st jig pole will be screwed onto the motor pole. This is to provide a guide for the magnet to locate it position on the motor base.
At this stage there is a need to take extra precautions, for neodymium regardless is it N30 to N52 the magnet will slam onto the base. If it is drop too high up, it will end up cracked, too low there is no way to stop the magnetic attraction to the motor base. My method is to place 3 to 4 alu or wooden spacer between the magnet and the motor base, so the magnet rest on top. Then remove the spacers one by one.
Remove the the 1st jig pole
Now I use a 2nd jig pole with a different size, and place the motor plate over it
During the assemble, I used glue like metal epoxy or Polyurethane glue. Only when the glue is dried, then will I remove the 2nd jig pole.
Never remove the jig pole while the glue is drying, the magnetic gap will shift away due to the magnetic close loop attraction.
It is a fairly simple and straightforward jig and fixture design. Or maybe my old job was a mechanical engineer working on Automation Machines, so knowing AutoCAD and designing them wasn't a issue for me.
During my design and planning process phase, there were many thoughts and engineering standardization with the magnet ring size and voice coil size. And from there I design tooling, bobbin, jig and fixtures for them.
Currently I have 3 cone designs, and I had so many jigs and fixtures that I had decided to discard 1 cone design and standardize on 2 cone design with the same VC.
Designing driver is not really a big deal, but it is the continuation process manufacturing accurately is the biggest hurdle to overcome.
There are 2 Jig poles are you can see from the photo below:
An externally hosted image should be here but it was not working when we last tested it.
The 1st jig pole will be screwed onto the motor pole. This is to provide a guide for the magnet to locate it position on the motor base.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
At this stage there is a need to take extra precautions, for neodymium regardless is it N30 to N52 the magnet will slam onto the base. If it is drop too high up, it will end up cracked, too low there is no way to stop the magnetic attraction to the motor base. My method is to place 3 to 4 alu or wooden spacer between the magnet and the motor base, so the magnet rest on top. Then remove the spacers one by one.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Remove the the 1st jig pole
An externally hosted image should be here but it was not working when we last tested it.
Now I use a 2nd jig pole with a different size, and place the motor plate over it
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
During the assemble, I used glue like metal epoxy or Polyurethane glue. Only when the glue is dried, then will I remove the 2nd jig pole.
Never remove the jig pole while the glue is drying, the magnetic gap will shift away due to the magnetic close loop attraction.
An externally hosted image should be here but it was not working when we last tested it.
It is a fairly simple and straightforward jig and fixture design. Or maybe my old job was a mechanical engineer working on Automation Machines, so knowing AutoCAD and designing them wasn't a issue for me.
During my design and planning process phase, there were many thoughts and engineering standardization with the magnet ring size and voice coil size. And from there I design tooling, bobbin, jig and fixtures for them.
Currently I have 3 cone designs, and I had so many jigs and fixtures that I had decided to discard 1 cone design and standardize on 2 cone design with the same VC.
Designing driver is not really a big deal, but it is the continuation process manufacturing accurately is the biggest hurdle to overcome.
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*I seldom post and share my tools due to bad experiences with people online hijacking it, end up posted online or someone else facebook and make it look as it the tools were design and made by them
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My cone assembled using jig and fixtures.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Started making using of handmade paper from China, called 麻纸, it made of mulberry.
I only made one so the recording is just a single driver playing
麻纸 Cone Video Recording
I only made one so the recording is just a single driver playing
麻纸 Cone Video Recording
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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