On 7 Apr 2005 07:15:52 -0700, firstname.lastname@example.org wrote:
If you have access to a wire solder gun you can thread the tweezers
through its wire loop while the solder is lit, and they will be
Be careful, the wire is HOT!
Luca Beato - http://members.xoom.it/huey /
FAQ del plastimodellismo su http://www.ipmsitaly.com/faq/modelfaq.html
/"\ ASCII Ribbon Campaign
X No HTML in
/ \ email & news
On 8 Apr 2005 05:04:52 -0700, email@example.com wrote:
No, he's not. Things get magnetic as their molecular structure get
lined up. That's why you can make a nail magnetic by rubbing it with a
magnet. (same direction, same pole) It usually doesn't stay magnatized
though. That's why vibration or whaking something will demagnatize it.
Randomizes the molecular alignment, no more magnetism.
"Nooooooo! Stop me before I build again."
I was going to suggest the same thing, but since I had a soldering gun and
tweezers within arms reach I thought I'd try it first before I posted.
The first pair of tweezers I grabbed was already magnetized a tiny bit. I
could lift a common pin with it, but it was easily shaken off. I pulled the
trigger on my gun, moved the tweezers into flux field inside the loop formed
by the copper soldering tip. You can easily feel the force of the
alternating magnetic field. The tweezers aren't pulled to either side, but
any motion is resisted.
I slowly pulled the tweezers away fully expecting the magnetism to be
gone..but lo and behold the pin still clung to the tweezers! I tried it
again, and again...no change. I tried releasing the trigger while the
tweezers were still inside the loop...now I can't shake the pin off! I
pulled them out slowly again and was back to residual magnetism. I thought
"I'll fix 'em". I held the tweezers against the hot tip of the gun for a
minute, then pulled slowly away...they still picked up the pin!
The only thing I can think of to explain this is that these tweezers were
used to hold something over a flame one time and were left over the flame so
long they discolored. Maybe the heat created a permanent magnet. Seems
counter-intuitive, but who knows. I'm not a physicist, I don't even play one
Well, it can be done by heating it sufficiently hot, but that may
destroy the temper and ruin the tweezers.
Better to use an AC field to do it. If you want to spend the money, you
can by a CRT demagnetizing coil (can you borrow one from someone?).
Plug it in, hold the tweezers near it, slowly withdraw the tweezers and
place them far away before unplugging coil. Do NOT unplug the coil with
Third, cheaper way. Find a 12 or 6 volt transformer (for safety). Wind
a coil of many turns, hook it to tranformer. Place tweezers inside-
then withdraw and follow instructions above.
I have the perfect tool - a bulk tape eraser (from the reel-to-reel
I bought it on eBay. Search for "akai tape eraser" or degausser.
It ia a motha of an electromagnet (AC). You turn it on and bring your
tweezers (or any other steel tools close to it. They get demagentized
in an instant!
I just demagnetize my entre tool tray at a time (plastic tray with
it will all make tape recorders play better. wave the field
around the play head in a circle and pull slowly away. you
can degauss that old ega monitor. circle around the face of
the tube and pull slowly away.
run it around the surface of your steel bass boat and
prevent those german magnetic mines in your bass lake from
ruining the fishing.
hold it to your mates head to confirm what you've always
suspected about the metal content of her head...and vice
verca. (we are not a chauvinist pig, honest)
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.