We’ve covered plenty of trebuchet designs here on MAKE:Blog, no relatively lower tech torsion catapult how-to’s though. Well here’s a video and instructable running through construction of a large-scale version – Link
In high school we built catapults for Physics class that needed to hurl a tennis ball 25m exactly. We used the bands from a slingshot and 2×4’s. My team took first place of all the entries. Later on during college, my dad gave me the trigger — all that was left of the rig when he scrapped it.
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I made my treb out of craft sticks.
http://farm2.static.flickr.com/1027/1381232191_d9b1ec473d.jpg
In high school we built catapults for Physics class that needed to hurl a tennis ball 25m exactly. We used the bands from a slingshot and 2×4’s. My team took first place of all the entries. Later on during college, my dad gave me the trigger — all that was left of the rig when he scrapped it.
Holy Cow! I’m on MAKE!
Thank you so much!