[Shop-talk] Tachometers

[David Scheidt]

On Jan 11, 2012, at 8:17 PM, "Randall" <tr3driver at ca.rr.com> wrote:

> Has anyone tried either the contact
> http://goo.gl/BZ98H
> or non-contact tachometers from HF?
> http://goo.gl/usd3Q
>

I've used one much like that.  Worked fine.  I was using it on a pulley.
$30 seems steep. Look around. ( but even $30 is cheap enough to try it )

One thing to investigate is what the smallest diameter it can deal with is.

> I'd like to map out the various spindle speeds for my 10" lathe, vertical
> mill & drill press; plus I occasionally want to know how fast some other
> shaft is turning.  For example, at the moment, I'm trying to repair an old
> speedometer and it would be a lot easier to test if I could spin it with a
> drill motor and know what it should be reading rather than having to
install
> it in the car and take a drive.
>
> -- Randall
> _______________________________________________
>
> Shop-talk at autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:
http://autox.team.net/mailman/options/shop-talk/dmscheidt@gmail.com