Instructables: exploring - play - siege-engines - mini - popular http://www.instructables.com Wed, 10 Feb 2016 05:09:31 PST BLOX v1.01 Mini Siege Engines http://www.instructables.com/id/Mini-Siege-Engines/
Mini Siege Engines - More DIY How To Projects]]> http://cdn.instructables.com/FZC/PA0N/H19RT1K9/FZCPA0NH19RT1K9.SQUARE2.jpg http://cdn.instructables.com/FZC/PA0N/H19RT1K9/FZCPA0NH19RT1K9.SQUARE.jpg http://cdn.instructables.com/FZC/PA0N/H19RT1K9/FZCPA0NH19RT1K9.SMALL.jpg WYE_Lance Ah catapults - a classic and exciting engineering project that introduces students to fundamental ideas in physics and engineering like energy transformation, trajectory, and structural strength. Materials Craft sticksCraft cubesCraft cubes with holeSkewerSmall cupRubber bandsHot glueTape ...
By: WYE_Lance

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Mon, 30 Apr 2012 11:54:36 PDT
Launch It: Torsion Spring Catapult http://www.instructables.com/id/Launch-It%3a-Torsion-Spring-Catapult/
Launch It: Torsion Spring Catapult - More DIY How To Projects]]> http://cdn.instructables.com/FU4/PURA/F54HJ9RD/FU4PURAF54HJ9RD.SQUARE2.jpg http://cdn.instructables.com/FU4/PURA/F54HJ9RD/FU4PURAF54HJ9RD.SQUARE.jpg http://cdn.instructables.com/FU4/PURA/F54HJ9RD/FU4PURAF54HJ9RD.SMALL.jpg i make shooting things True catapult that uses a extremely tightly wound string to power it, it fits in the palm of your hand, it cost under $20. all supplies can be purchased at Michaels. fires small foam objects 40 feet aprox 1053 feet to scale, about 7.5FPS when firing a 14g weight (twice the weight of the catapult its...
By: i make shooting things

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Thu, 16 Aug 2007 10:31:55 PDT
Mini Clothespin Catapult And Crossbow http://www.instructables.com/id/Mini-clothespin-catapult/
Mini Clothespin Catapult And Crossbow - More DIY How To Projects]]> http://cdn.instructables.com/FFS/QC9X/GP7IHWP4/FFSQC9XGP7IHWP4.SQUARE2.jpg http://cdn.instructables.com/FFS/QC9X/GP7IHWP4/FFSQC9XGP7IHWP4.SQUARE.jpg http://cdn.instructables.com/FFS/QC9X/GP7IHWP4/FFSQC9XGP7IHWP4.SMALL.jpg vishalapr A few days ago I went to a local supermarket and I saw that a whole pack of 50 clothespins costs only 3zl(1$) so I decided to buy those as I could make a lot of things from them and they were cheap! So after a bit of thinking I came up with this catapult and crossbow that I made from only 19 clothe...
By: vishalapr

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Sat, 9 Jul 2011 04:12:19 PDT