Epee Problems Continue....

Epee Problems Continue....

Post by Peter Dickinson M » Wed, 23 Feb 1994 02:05:57


Thanks to everyone who responded to my original
post....unfortunately I have yet to find the problem.  I'll try
to make my explanation clearer than last time:

Blade is wired up and connected to a test box.  Both lights on
the box are dark.  I press the tip, and both the epee
and foil lights go on.  I take out the weight spring and try
a few different tips, but the problem remains.  I remove
grip, socket and guard and check the insulation on the wires
and there is no exposed wire.  I peel the wires away from
the blade about a third of the way down, and find no
exposed wire.

Now, with the wires partially peeled away from the blade, I
reconnect the them to a socket not in contact with the
blade.  Under these circumstances, it works properly.  Whenever
I touch the metal of the socket to the blade, however, the foil
light goes on as well (with tip depressed).  With different
sockets and different tips, the same thing happens.

If I only plug the two close-together prongs of the body cord
into the socket, the blade works properly.  When the third
prong makes contact with the third hole of the socket, the
weapon fails (both lights of the test box goes on with tip
depressed).

I'm confused!  If there is exposed wire touching the blades
somewhere, shouldn't the foil light go on even when the tip is
not depressed?  The strange difference between when the socket
touches the blade and when it doesn't seems to suggest that
exposed wire is not the problem.  The body cord and test box
work fine with other weapons, so that's not the problem.
Things go wrong with no pressure spring and different tips, so
contact with the barrell doesn't seem to be problem either.
Same problem occurs with each socket I try.  

What's left to go wrong?

In frustration,

Peter May
UVa Fencing Club

 
 
 

Epee Problems Continue....

Post by Daniel P. Vun » Wed, 23 Feb 1994 04:02:09

Pete,

I would try using a ohm meter instead of a test box.  With the meter
you can check each part of the circut indenpendtly, and see where the
grounding problem is.  (if you bring it to the tournament at VCU on
Sunday, I will give you a hand tracking it down.)

Dan Vunck
VCU Fencing Club


 
 
 

Epee Problems Continue....

Post by CALVIN MENYENNETT (k » Thu, 03 Mar 1994 21:34:54


Quote:

>Subject: Epee Problems Continue....
>Date: Mon, 21 Feb 1994 17:05:57 GMT
>Thanks to everyone who responded to my original
>post....unfortunately I have yet to find the problem.  I'll try
>to make my explanation clearer than last time:
>Blade is wired up and connected to a test box.  Both lights on
>the box are dark.  I press the tip, and both the epee
>and foil lights go on.  I take out the weight spring and try
>a few different tips, but the problem remains.  I remove
>grip, socket and guard and check the insulation on the wires
>and there is no exposed wire.  I peel the wires away from
>the blade about a third of the way down, and find no
>exposed wire.
>Now, with the wires partially peeled away from the blade, I
>reconnect the them to a socket not in contact with the
>blade.  Under these circumstances, it works properly.  Whenever
>I touch the metal of the socket to the blade, however, the foil
>light goes on as well (with tip depressed).  With different
>sockets and different tips, the same thing happens.
>If I only plug the two close-together prongs of the body cord
>into the socket, the blade works properly.  When the third
>prong makes contact with the third hole of the socket, the
>weapon fails (both lights of the test box goes on with tip
>depressed).
>I'm confused!  If there is exposed wire touching the blades
>somewhere, shouldn't the foil light go on even when the tip is
>not depressed?  The strange difference between when the socket
>touches the blade and when it doesn't seems to suggest that
>exposed wire is not the problem.  The body cord and test box
>work fine with other weapons, so that's not the problem.
>Things go wrong with no pressure spring and different tips, so
>contact with the barrell doesn't seem to be problem either.
>Same problem occurs with each socket I try.  
>What's left to go wrong?
>In frustration,
>Peter May
>UVa Fencing Club

Here is a test you can do BUT unfortunately you need an ohmmeter. (I'm sure
you can get hold of one somewhere). Remove the tip from the barrel.
Connect one of the leads of the ohmmeter to the blade. Connect the other
lead to first the one and then the other blade wire. I'm sure one of them
will register a short(i.e. to the blade). If you don't get a short try the
following. Do the same test but insert a non-conducting piece of material
such as a wooden match down the barrel. Press against the contacts lightly
with the match and check if any of the blade wires registers a short to the
blade. I am nearly 100% sure one of the above will register a short. My
guess is that one of the blade wires is touching the barrel (or blade)
inside the barrel.

I hope you solve it!!

Regards
  Calvin

:-) --------------------------------------------------------- (-:
Calvin Menyennett                 Tel: +27-11-489-2107
***netics Laboratory            Fax: +27-11-489-2357

P O Box 524                   //=====\\   //\\         //      //
Aucklandpark                 //      //  //  \\       //      //
2006                        //=====//   //====\\     //      //
SOUTH AFRICA               //   \\     //      \\   //      //
                          //     \\   //        \\  \\=====//
=================================================================