Re: Torque Meter Question
Yep. Mine that came apart was on an F1L motor and it hurt. I don't use any sort of release device on mine so that I can put a hard looped connection at the back end.
To anchor the front end of my big meter I put a length of 1/16 brass tubing over the wire. The tubing is long enough to extend back through the bearing. In front of the dial face I put a hard 90 degree bend in the tubing with the wire inside and then finish bending the hook from the tubing and wire in front of the 90 degree bend. This doesn't require any solder but if you have any doubts about it hanging together you can solder the wire and tubing together.
----- Original Message -----
From: LeRoy C Cordes
To: Indoor_Construction_at_yahoogroups.com
Sent: Tuesday, October 16, 2007 10:50 AM
Subject: Re: [Indoor_Construction] Torque Meter Question
Cal, my only input is to make sure that the wire element is looped and
connected to the extremeties - one of the guys here had a lapped solder
joint on his and it let loose and the front came flying at him.
Fortunately he was using smaller rubber so it only smarted a bit but
winding hard like you're talking about, if the front end came loose it
could do some serious damage.
LeRoy Cordes
AMA 16974
Chicago, IL
In God We Trust
On Mon, 15 Oct 2007 20:58:02 -0000 "calgoddard" <calgoddard_at_yahoo.com>
writes:
> Our team has a torque meter it built several years ago that embodies
>
> the Cezar Banks design. It works quite well, especially the release
>
> trigger.
>
> We are concerend about over-torquing the element because of larger
> rubber our team is winding this year.
>
> The element is 0.015 inch music wire, about 12.5 cm long.
>
> When they used to wind .080" - .083" width rubber, the needle would
>
> rarely go much over one turn. Now, when winding rubber motors with
>
> larger widths above 0.100" the needle can go over two turns. This
> means the .015 inch musicer wire element is twisting more than two
> full revoltions along its 12.5 cm length.
>
> I understand that if you overstress the elment, it will lose its
> memory and cease to give active measurements. Should we replace
> the .015" element with a larger diameter element, e.g. 0.020" music
>
> wire? Unfortunately, we have not calibrated the torque meter to
> ounce inches, and just use relative numbers and fractions read off
> the dial face to determine optimum winds.
>
> Any help would be appreciated.
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
LeRoy Cordes
AMA 16974
Chicago, IL
In God We Trust
[Non-text portions of this message have been removed]
Received on Tue Oct 16 2007 - 08:25:50 CEST
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