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Re: ATM Cast iron tools


>>Then, with an eye bolt up through the 
>>middle to a fender washer that spans the copper tube and wing nut to hold it 
>>snug, you have an inexpensive (<$3) counterweight assembly. 
[snip]
>Why an eyebolt? Is the weight assembly intended to hang from something?
>If so, what are the effects of its oscillation?

The weights are pressed tight against the mount.  The eyebolt was convenient 
because the "eye" hooked an available latch on my mount and the "eye", itself, 
fit nicely inside the copper tube.  The threaded end of the bolt extends a 
short way out the tube with room for the large washer and the wing nut.  By 
tightening the washer against the weights, they press hard and flat against the 
mount and are quite rigid (no oscillation).

For the ascii art gallery (looks better monospaced in Courier)... 

<html><pre>
   ||
   || <<< washer presses weights into this face
   ||
   ||------------\
   ||     |      |
   ||     |      |\ fender washer
   ||-----|------||
   ||/\\  |      ||X wing nut
   || | >=|======|=X==== eye bolt hooked to a latch
   ||\//  |      ||X         
   ||-----|------||
   ||     |      |/
   ||     |      |
   ||     |      |
   ||------------/ cast iron weights with copper tube bore
   ||
   mount
</pre></html>


Chin and eyes up!

Billy Rudock
Santa Cruz, California

     Backyard Astronomer, Bluegrass Musician, 
         Flyfisherman, Disc Drive Dabbler
                     _0_
                    <\B/>
                    _/ \_
- - C'mon people, now, smile on your brother. - -
         Billy_Rudock@notes.Seagate.com