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Oliver (Prof. Henry)
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Although I use a metal detector to find hidden nails and metal in reclaimed lumber, the detector doesn’t do a very good job of pinpointing the culprit. Recently I tried old-school Ouija technology to help locate the nails. Here’s how it works.

 

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David - Machinist in wood
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Good info, Oliver. And a fun video, as well!

I had to use a rare earth magnet yesterday when I was cleaning my work area with the shop vac and sucked up the tiny hinge screws for a small box I'm building. The screws were actually stuck in the ribs of the hose but I got them out. I didn't have any fun music, though. :wink:

David
 

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What a great idea Oliver, I have heaps of rare earth magnets but never thought of using one like that.
 

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Good one, Oliver. Nice to know. I have a Bosch PDO Multi detector, very accurate and sensitive and can detect the exact position of the smallest panel pin on the backside of a 2 inch plank. BUT it gobbles batteries!! Magnet is easier, I think.
 

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Oliver sure is a trip...
 

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@ swarfmaker.Hi Ronald,have you tried removing the magnets & storing them when not using your detector. I have found this works with my calipers,otherwise I need a new battery every time . Just a thought, James.
Amusing. I have dumped all my flat battery stuff. If it doesn't have AA or AAA batteries, it's not going into my shopping cart. How is it they run a computer clock for a decade and only last 20 minutes in a tool? Lord save the mechanical gauges!
 

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@ swarfmaker.Hi Ronald,have you tried removing the magnets & storing them when not using your detector. I have found this works with my calipers,otherwise I need a new battery every time . Just a thought, James.
Yes, James, I always remove the battery, ...... WHEN I REMEMBER........>:)
 
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