regardless if on the wheel or the drive shaft, a dummy weight or another
magnet (with appropriate circumference adjustment) to keep either one in
balance. The magnet would weigh approx. 1 oz. minimum, which would throw
either one way off on balance.
jls '68 2L
-----Original Message-----
From: Dan Neuman [mailto:dneuman@stars.sfsu.edu]
Sent: Thursday, June 15, 2000 2:31 AM
To: VulForge@aol.com; datsun-roadsters@autox.team.net
Subject: Re: Bike speedometers in the roadster
Hi Russ,
I think the driveshaft is the best idea. I just need to figure out
how
to mount the sensor... Hmmmm the driveshaft will move through an angle
as the rear end moves over bumps... maybe if I put the magnet on the output
shaft of the transmission. Then I still have to figure out a way to mount
the
sender within ~5mm. Oh, a trick a lot of MC guys use is to go to radio shack
abd buy the strongest rare earth magnet possible, this will give a better
signal and allow a slightly sloppier alignment. Another drawback is, is that
it
will probably take two people to do the circumfrence measurement-one to
watch the wheel and one to watch the drive shaft-since you need to know how
far forward the car went in one revolution of the drive shaft...maybe I can
get this done this weekend.
Daniel 69 2000\
At 11:29 PM -0400 6/14/00, VulForge@aol.com wrote:
>In a message dated 6/14/00 6:39:59 PM Central Daylight Time,
>dneuman@stars.sfsu.edu writes:
>
><< Now I jsut gotta find a place to mount it. The tolerances between the
> magnet and the sender are very small. ~5mm. I need to mount it somewhere
> where that can happen and somewhere that will not get very hot. Any
> suggestions?? >>
>
>How about the driveshaft? That would be the shortest possible point, and
the
>circumference won't vary. Of course it will read high when you spin the
>tires!
>
>Russ
>67 1600
|