Re: To use magnets instead of a spring in chrom design

["Vern Smith" <jevern@xxxxxxx>]

 ----- Original Message ----- 
 From: "Nidalap :D~" <nidalap@xxxxxxxxxx>
 > Just a curious question for chromatic harmonica customizers/designers:

 > Have anyone tried the idea, to use two magnets instead of the spring,
 > to provide force which sets slide back to its original position?

 What would be the advantage?

 There are several reasons why this would not work very well:

 1. Magnets to provide the same force would be physically much larger and
 heavier than the equivalent spring.
 2. The force of a spring is proportional to its compression/extension.  By
 overcompressing the spring, the force on the slide can be almost constant.
A
 pair of magnets would give a non-linear force inversely proportional to the
 square of the distance between them.
 3. Magnets attract ferrous junk.
 4. Magnets cost more than springs.

 "If it ain't broke, don't fix it."

 Vern

 Visit my harmonica website: www.hands-free-chromatic.7p.com