Update
I am RP# 741 and a Gold member now! I qualify now yay!
A note before I show my traps, these were all made with my IZULA, and a small outdoor woodsaw. I thought that since this contest was to win an IZULA, it was fitting to use only that knife for the traps!
I made 4 variants of deadfall, each with increasing difficulty to set, therefore increasing sensitivity, and in turn increasing effectiveness.
1: Figure 4 Deadfall
A fairly easy deadfall to make, and if done correctly can be decently sensitive, although it takes more force than other deadfalls to trigger in my opinion. The notching takes a bit of practice, but can be easily adjusted.
It consists of 3 notched sticks, and a leaning weight (a 2x8 in this example, but a large flat rock should be used in a real survival situation). The bait goes on the sharpened horizontal stick directly under the weight.
When the bait stick is moved, it falls out of the way, the slanted stick is released from the notch and is pushed by the weight directly away from the trap and drags the vertical stick along with it because of the notch.
I made another version of this while on vacation with a proper rock, and bait added for effect.
2: Friction Point Split Stick Deadfall
This one is simpler in form than the figure 4. I saw a pattern that when the setups got simpler (fewer mechanisms) they increased in sensitivity. This however will be proven to have exceptions in my last deadfall... but keep reading!
It consisted of 2 notched sticks, a trigger (bait) stick and a leaning weight. When the bait stick is moved/jiggled, it causes the two sticks to lose their grip on each other on the weight comes down.
3: Split Stick Deadfall
The deadfall in its simplest form. One stick cut in half, with a bait stick notched in between them. Basically the trick to this one, is to get the stick cut in half as STRAIGHT AS POSSIBLE. That way when you V notch the ends of it to insert a bait stick, it will still be possible to balance it, otherwise it flops all over the place.
When the bait stick is moved (I even blew on it and it triggered) the sticks buckle and fall out of the way as the weight comes down.
See next post for last deadfall (Split up because of more than 10 images)