RE: [CAD_CAM_EDM_DRO] Re: Newbie-esque problem

Wilson -

Are you just trying to find the max fork travel that you are
using, or do you need to plot fork travel vs. distance ridden? If
you just need an indication of fork travel used, you might be able
to do what mountain bikers do with suspension forks - wrap a
zip-tie around the chromed stanchion tubes, snugly, but loose
enough to be pushed by the seal. After a ride, measure the stroke
with a tape measure.

Carlos Guillermo
VERVE Engineering & Design

-----Original Message-----
From: andy@... [mailto:andy@...]
Sent: Tuesday, October 30, 2001 11:41 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Newbie-esque problem

A more robust solution might be a couple of proximity switches
mounted on your fork reading a metal strip with holes in it
mounted
to the shock tube at the wheel. The holder for the prox switches
would act as a guide for the metal strip. You should be able to
get a
resolution of 4x the hole spacing; the minimum hole spacing
depends
on the size of the prox switch. Andy

--- In CAD_CAM_EDM_DRO@y..., "Dan Mauch" <dmauch@s...> wrote:
>
> Try using a linear encoder strip from www.usdigital.com and
their
7803
> chip.
> The linear strip is $2 an inch and $14 for the encoder read
head.
The
> 7803 is about $4.
> Dan
> -----Original Message-----
> From: Intellicorp001 [mailto:intellicorp001@m...]
> Sent: Tuesday, October 30, 2001 12:15 AM
> To: 'CAD_CAM_EDM_DRO@y...'
> Subject: [CAD_CAM_EDM_DRO] Newbie-esque problem
>
> Hi All,
>
> I've been lurking around here since July. I've been getting a
feel
> for
> whats available, what I might need & what I can afford. The
level of
> expertise on this board is just awesome & I'd like to thank all
those
> who
> generously contribute their time.
>
> I have a teensy problem at the moment & I wonder if I could get
some
> advice. I want to record the movement of my motorcycle front
forks.
I
> have a
> recording device (pic microprocessor based) and I want to feed
it
with
> positional information about what the forks are getting up to. I
had
> first
> thought about a slide potentiometer but pricey much? Wow, I'm
looking to
> spend $50 not $500. Resolution wise, analog would be overkill,
steps of
> 100
> would be great, steps of 20 would be sufficient.
>
> You guys measure position all the time, admittedly with way
more
> accuracy
> than I want, but can you think of a cheapy, rugged (waterproof
would be
> nice
> to have) way for me to 'read' the position of my forks ?
>
> Sorry this isn't on topic but you don't have a coffee_lounge for
> off-topic
> posts.
>
> Time is money & money is beer so there's a case of 'the beer of
your
> choice'
> for the best answer.
>
> Thanks,
>
> Wilson Logan.
>
>
> "Beer is good, beer is our friend".
>
>
>
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> bill,
> List Manager
>
>
>
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