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PVC Trip Mine "Build-it-Yourself"

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bullet Build PVC Trip Mines, FREE PLANS
bullet PVC Trip Mine Plans, Method 1
bullet PVC Trip Mine Plans, Method 2
bullet PVC Tripwire Trip Mine Plans, Method 3
bullet Remote Control Proximity Trip Mine Plans, Method 4

Feeling the pressure?

PVC Tripwire Trip Mine Plans, Method 3

Here are the diagrams, along with pictures for reference at the bottom of the page, don’t hurt yourself. Glue all parts except the cleanout plug together and for your own sake, let it dry before using it.

PVC Trip Mine Exterior Fabrication

Tripwire Trip Mine Materials:

bullet 1 clothespin
bullet wire
bullet 3 9 volt batteries
bullet 1 ¾” 18volt rainbird solenoid sprinkler valve
bullet 2 pieces ¾” PVC pipe
bullet 2 2” to ¾” threaded PVC reducers
bullet 2 2” PVC couplers
bullet piece of 2” PVC piping
bullet tie wraps or metal o-clamps
bullet 2 position switch
bullet metal tire valve
bullet 2 stakes (for ground mounting)
bullet 2” PVC end cap
bullet piece of non-conductive material
bullet trip wire
bullet PVC glue

Click to enlarge tripwire trip mine schematic

Fabrication and Assemble Instructions:

I’m not going to go into great detail about how to build this device
because I have labeled the above diagram with all of the parts and
it should be fairly straight forward. Just make sure to glue all joints
except for the threaded ones.

Also make sure to test for leaks by slowly adding air pressure and
allowing it to sit and checking if the same pressure is present. I
would suggest filling the pressure tank to 100psi, but you might
want to experiment for yourself to find a good amount of pressure.

The diagram to the right is a closer view of how the trip mechanism
works to trigger the solenoid.

When someone hits the trip wire the non-conductive material is pulled out and the two contacts touch
providing a path to ground and therefore triggering the solenoid.

The sprinkler valve opens and paint is sprayed in the direction in
which it is pointed.

bullet Build PVC Trip Mines, FREE PLANS
bullet PVC Trip Mine Plans, Method 1
bullet PVC Trip Mine Plans, Method 2
bullet PVC Tripwire Trip Mine Plans, Method 3
bullet Remote Control Proximity Trip Mine Plans, Method 4
 
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