Re: Newbie-esque problem

Wilson,

Dan already pointed out a good linear solution.

My concern is the movement may bind with the motorcycle
forks. You might want to look at how a rotary encoder
is used for linear measurement.

Darn... can not find the DRO stuff, but basically
you are converting linear motion into rotary motion
and measuring the rotary motion.

A wire is wrapped around a drum, that has an internal
spring. As you pull the wire the drum rotates, and will
also draw the wire back in. At least no problem with
binding, but vibration of the wire may cause errors.

Tom Walter
Round Rock, TX.


--- In CAD_CAM_EDM_DRO@y..., Intellicorp001 <intellicorp001@m...>
wrote:

> 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".