Dropped by the hardware store today, and realized that things cost lots and lots of money. like...15 dollars for the angle iron I would need to make the grappling hook, and nothing made of spring steel for the crossbow prods. the new plan is to drop by an auto parts yard and pick up a set of parabolic leaf springs off of a car. the longest spring is perfect for a crossbow, and a shorter one can be used for the grappling hook, with no risk of it bending under my weight. I'll probably try to make knives out of the shortest ones.
For now I've got another tetanus inducing piece of metal I can use to test crossbow design.
Thursday, 28 April 2011
Grappling hook pictures! Keep in mind that once I build this from metal from a hardware store, and not from terrible scrap from my backyard, the risk of tetanus will go down considerably. This is also a very convenient anti-zombie device. look at the frightening point on it!
Tuesday, 26 April 2011
Monday, 25 April 2011
Saturday, 23 April 2011
This falls more under science than nerdy, but still...I'm planning on building a two pronged grappling hook. Hoping to pick up some steel pipe, or even better, thin rebar. then all that's left is to bend it so it forms a "V" of approximately 30 degrees, and bend the ends over so they are 1/3 as long as the central shaft and form a 45 degree angle with it. pics to come