Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Wed, 09 Apr 2003 23:58:38 -0400
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 originator="Paul Davis <pdavis@pdavis.bmc.com>"
From: "Paul Davis" <pdavis@bmc.com>
Reply-to: "Paul Davis" <pdavis@bmc.com>
Subject: Re: [LML] Re: Epoxy pump AR-100 
In-Reply-To: Your message of "Thu, 03 Apr 2003 21:20:05 EST."
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Several folks (Marv and Don come to mind) have recommended scales in 
lieu of epoxy pumps.  Appeals to me, so I've been shopping.

Marv seems satisfied with the Ohaus Scout (300G capacity with 0.1 
resolution).

I'm also looking at the Ohaus CS200 (200G capacity with 0.1G 
resolution and 0.1G accuracy (for $68.00).

I think most of these scales do "tare to capacity by subtraction"
which I understand to mean you can tare up to the capacity of the
scale in multiple steps.  So I could put an empty container on the
scale, tare to 0, weigh resin, tare to 0, weigh hardener, all without
removing the container from the scale -- so long as the total of
container, resin and hardener is less than the capacity of the scale.
Is that the way "tare to capacity by subtraction" works?

We have the fast-build Legacy and did the one week workshop so most
of the big volume steps are complete.  And of course we could always 
just measure several cups individually and then mix.

My question is what capacity scale do we really need?
My instinct is to go with "just big enough" on the assumption that 
I'll get best accuracy.  Any thoughts, recommendation or regrets?

-------------------
Potest ex casa magnus vir exire
A great man can come from a hut
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