Looks like an interesting spider replacement. I wonder how it will hold up to continuous use though? All that bending around the joint...
Hola Mexican,
What advantages do you perceive the Sarrus link to have over the usual surround and single or double spider arrangement?
Art
perfect linearity, large excusrion
My dear friends will help me explaining this:
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Fusor says (diyAudio Member):
The right angles of a sarrus would seem to maintain alignment even with only two sides. Also much higher Q and more linear than the circular stretching/pulling of a conventional spider.
Excellent idea sir. Further plans?
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ICG says (diyAudio Member):
The kept alignment is a very big advantage. The downside is, the spring tension of the spider is missing to get the cone back which can lead to a coil offset position in resting position. The progression of the spider can prevent the coil from hitting the back pole plate (if the driver is designed that way) and that is also a feature which is missing. That are two important drawbacks but both could potentially be eliminated if used in an active position feedback system. Such a system would allow huge but extremely precise excursions and excellent impulse response if designed properly.
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Mexican here (me, myself and I):
Hi, thaks a lot for your commets on my post !!
Initialy it is just the motor to be used in a bass radiator of a new kind, but it can be interesting to adapt it to a standar cone with rubber surround...it is just an idea to add limits and a resting position of the linear motion, Hope you like it!!
To be sincere I have my doubts if putting springs against springs will resoult in a different force if I change the lenght !!??!!
Sorry for my poooor English
Can not change title!!
My dear friends will help me explaining this:
*********************************************
Fusor says (diyAudio Member):
The right angles of a sarrus would seem to maintain alignment even with only two sides. Also much higher Q and more linear than the circular stretching/pulling of a conventional spider.
Excellent idea sir. Further plans?
*********************************************
ICG says (diyAudio Member):
The kept alignment is a very big advantage. The downside is, the spring tension of the spider is missing to get the cone back which can lead to a coil offset position in resting position. The progression of the spider can prevent the coil from hitting the back pole plate (if the driver is designed that way) and that is also a feature which is missing. That are two important drawbacks but both could potentially be eliminated if used in an active position feedback system. Such a system would allow huge but extremely precise excursions and excellent impulse response if designed properly.
*****************************************************
Mexican here (me, myself and I):
Hi, thaks a lot for your commets on my post !!
Initialy it is just the motor to be used in a bass radiator of a new kind, but it can be interesting to adapt it to a standar cone with rubber surround...it is just an idea to add limits and a resting position of the linear motion, Hope you like it!!
To be sincere I have my doubts if putting springs against springs will resoult in a different force if I change the lenght !!??!!
Sorry for my poooor English
Can not change title!!
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Thanks for asking gentleman!
I think it has to be a Compliant Mechanism Structure
image from:
Fascinating World Of Compliant Mechanisms
I think it has to be a Compliant Mechanism Structure
An externally hosted image should be here but it was not working when we last tested it.
image from:
Fascinating World Of Compliant Mechanisms
You are just right !!!
any idea? double coil? the new monopolar magnet sandwich?
Thanks sir!!!
any idea? double coil? the new monopolar magnet sandwich?Thanks sir!!!
Maybe something like this will prove more durable:
YouTube
However there will be mechanical "losses".
I would recommend Butyl/Santoprene for the surround due to longevity.
Foam might be easier to work with but will detoriate far more quickly.
Maybe some shop already carries the required diameter?
YouTube
However there will be mechanical "losses".
I would recommend Butyl/Santoprene for the surround due to longevity.
Foam might be easier to work with but will detoriate far more quickly.
Maybe some shop already carries the required diameter?
Now I have a path to follow with Butyl/Santoprene!!!
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