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Offline ehssanehsTopic starter
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« on: October 29, 2009, 07:33:59 am »
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HI
is there a hole or cave detector?
and is there a schematic for making some hole detector?
I need one if there is.

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Offline GoldDigger1950
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« Reply #1 on: October 29, 2009, 05:46:12 pm »
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As to schematics or plans, you may be out of luck but a GPR or Sonar unit can detect a hole or cave. They are both too complex to build at home.

Consider renting one.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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« Reply #2 on: October 30, 2009, 09:00:15 pm »
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Quote:Posted by ehssanehs
HI
is there a hole or cave detector?
and is there a schematic for making some hole detector?
I need one if there is.


A two box detector will detect caves, and other voids, but do not ask me how. The only thing I can suggest is it detects the ground discontinuity, as though it was metallic?

The commercial machines have a switch, so you can switch between *void* and *metal.*

goldigger

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