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Hi members. Mad scientist, wetsub Bill
here.
In my search for some kind of waterproof
variable speed switch for my wetsub,I have read many articles about the magnetic
reed switch.
I am enclosing some links below that mention this
type of switch. A lot of the links are about DPV's (diver propulsion vehicles)
and
dive scooters and the type of reed switches they
use. I noticed some of the highter end DPV's have a VARIABLE SPEED
magnetic reed switch.
I intend to contact the manufacturer of these DPV's
and ask them about those switches. I need to make sure they will work with my 24
volt minnkota and that the amps and volts would
work with their switches. I believe a magnetic switch is the way to go because
it precludes
having to worry about using an "O" ring on the
shaft of a rheostat to waterproof it, plus the switch itself can be completely
waterproof encased and
activated by a magnet that I can attach to my hand
or to a lever that moves the magnet close to the encased switch when I apply
pressure on
the lever. I will let you know what I find out
after calling some of the manufacturers as to how their magnetic reed switches
will work for controlling
my wetsub's motor speed. Here are those links if
you want to take a look.
I also found out that an idea I had a while back
has already been made. I once proposed here that if someone could encase an
electric motor into a waterproof housing
wherein the motor would spin a magnetic plate and
that plate's magnetism would then transfer thru the waterproof housing to a
clutch that would then turn a prop, this
would enable us to make motors that we would
not have to worry about equalizing because there would be no exposed motor shaft
with a motor shaft seal to leak from
outside water pressure. Well an outfit called
Rimtec has made it. This could really be something we could use. No more
worrying about equalizing our motors or shaft seals
leaking! We can completely enclose our electric
motors in a waterproof container and let the magnetic plate attached to our
motor shaft turn the clutch that is OUTSIDE of the
housing and attached to the prop. Here's the
links.
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