http://www.instructables.com Thu, 23 May 2013 04:08:29 PDT BLOX v1.01 http://www.instructables.com/id/AIR-CANNON-6/ http://www.instructables.com/files/deriv/F7L/AKNI/HFPTICVH/F7LAKNIHFPTICVH.SQUARE2.jpg http://www.instructables.com/files/deriv/F7L/AKNI/HFPTICVH/F7LAKNIHFPTICVH.SQUARE.jpg http://www.instructables.com/files/deriv/F7L/AKNI/HFPTICVH/F7LAKNIHFPTICVH.SMALL.jpg Angrierbeaver  Here is an air cannon I made with on old air compressor tank and some other junk I had lying around. The only cost to me was the ball valve that cost about $50.  I may need to move the pressure gauge to another available port that is not on the fill stem, I'm not sure if I am getting a true read. T...
By: Angrierbeaver

Continue Reading »]]> Tue, 30 Apr 2013 21:37:19 PDT http://www.instructables.com/id/Weight-Bearing-Grappling-Hook/ http://www.instructables.com/files/deriv/FSI/VSGQ/HFPTONLP/FSIVSGQHFPTONLP.SQUARE2.jpg http://www.instructables.com/files/deriv/FSI/VSGQ/HFPTONLP/FSIVSGQHFPTONLP.SQUARE.jpg http://www.instructables.com/files/deriv/FSI/VSGQ/HFPTONLP/FSIVSGQHFPTONLP.SMALL.jpg forestguard1995 Weight Bearing Grappling Hook: Project Cost: $25+ (actual price depends on length and material of rope) Construction Time: 15-30 minutes Materials: Trolling Anchor (I suggest a collapsible one with a locking ring, I found a decent one at Dick's Sporting Goods. See Picture 2) Rope (The diameter ...
By: forestguard1995

Continue Reading »]]> Mon, 29 Apr 2013 20:37:14 PDT http://www.instructables.com/id/Easy-Adjustable-Catapult/
Easy Adjustable Catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZU/YWKC/HELXCIOM/FZUYWKCHELXCIOM.SQUARE2.jpg http://www.instructables.com/files/deriv/FZU/YWKC/HELXCIOM/FZUYWKCHELXCIOM.SQUARE.jpg http://www.instructables.com/files/deriv/FZU/YWKC/HELXCIOM/FZUYWKCHELXCIOM.SMALL.jpg LikeASir This catapult takes only about a weekend to build, and once it's done it can hurtle a reasonable size projectile high into the air. The cool thing with this catapult is that you can adjust the angle at which it fires. Making The Frame You will need a piece of wood about 20-30 cm wide, 2-3 cm thic...
By: LikeASir

Continue Reading »]]> Fri, 22 Mar 2013 19:07:04 PDT http://www.instructables.com/id/Potato-Cannon-10/
Potato Cannon - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FKB/W04P/HEBNAOVV/FKBW04PHEBNAOVV.SQUARE2.jpg http://www.instructables.com/files/deriv/FKB/W04P/HEBNAOVV/FKBW04PHEBNAOVV.SQUARE.jpg http://www.instructables.com/files/deriv/FKB/W04P/HEBNAOVV/FKBW04PHEBNAOVV.SMALL.jpg poppop159 Me my dad and my brother went to Home Depot and got PVC pipe and put together a potato cannon it shoots very far about 300ft Barrel The barrel is a 1"1/2 by 5ft PVC pipe with the Combustion Chamber The combustion chamber is basically a 3" by 3ft piece of PVC pipe with a screw cap on one end a...
By: poppop159

Continue Reading »]]> Mon, 18 Mar 2013 16:02:27 PDT http://www.instructables.com/id/Ping-Pong-Catapult/
Ping Pong Catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F3R/E6MW/HE081PCB/F3RE6MWHE081PCB.SQUARE2.jpg http://www.instructables.com/files/deriv/F3R/E6MW/HE081PCB/F3RE6MWHE081PCB.SQUARE.jpg http://www.instructables.com/files/deriv/F3R/E6MW/HE081PCB/F3RE6MWHE081PCB.SMALL.jpg frstoe I built this ping pong catapult for the kids but they are a great stress reliver in the office you can have some real fun with these I looked at a few good designs over the internet and everyone i saw had a tendancy to use standard lolly sticks, i wanted something a little stronger and more durable...
By: frstoe

Continue Reading »]]> Tue, 12 Mar 2013 08:34:29 PDT http://www.instructables.com/id/how-to-make-a-mini-trebuchet-catapult/
how to make a mini trebuchet catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FLJ/37WL/HDOW3O0D/FLJ37WLHDOW3O0D.SQUARE2.jpg http://www.instructables.com/files/deriv/FLJ/37WL/HDOW3O0D/FLJ37WLHDOW3O0D.SQUARE.jpg http://www.instructables.com/files/deriv/FLJ/37WL/HDOW3O0D/FLJ37WLHDOW3O0D.SMALL.jpg swisel Hi in this instructable I will be showing you an awesome way to make a trebuchet.  you will need: the base If you have seen some of my previous instructables you should now know that i always start wit the base. Cut two pieces of wood in half. Put one of them away. Now glue them on to two oth...
By: swisel

Continue Reading »]]> Sat, 2 Mar 2013 08:50:09 PST http://www.instructables.com/id/Tiny-Catapults/
Tiny Catapults! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FRA/06J0/HDHW5A5K/FRA06J0HDHW5A5K.SQUARE2.jpg http://www.instructables.com/files/deriv/FRA/06J0/HDHW5A5K/FRA06J0HDHW5A5K.SQUARE.jpg http://www.instructables.com/files/deriv/FRA/06J0/HDHW5A5K/FRA06J0HDHW5A5K.SMALL.jpg pariahcycle Construct your own miniature siege engines! What you'll need. 1. A couple of nasty looking boards. 2. A 1/2" diameter dowel. 3. A short piece of a 2x2. 4. A length of thin rope. 5. Two 1" wood screws. 6. A 1/2" drill bit. 7. A 3/4" spade bit. 8. A drill or drill press. 9. A table saw or circular ...
By: pariahcycle

Continue Reading »]]> Wed, 27 Feb 2013 11:37:52 PST http://www.instructables.com/id/Torsion-Onager-175-yards/ http://www.instructables.com/files/deriv/F6X/GNO2/HDHXNPIL/F6XGNO2HDHXNPIL.SQUARE2.jpg http://www.instructables.com/files/deriv/F6X/GNO2/HDHXNPIL/F6XGNO2HDHXNPIL.SQUARE.jpg http://www.instructables.com/files/deriv/F6X/GNO2/HDHXNPIL/F6XGNO2HDHXNPIL.SMALL.jpg Alex and Joey Productions      I am a 8th grader and I built this onager for my science fair project.  All the metal was laser cut at my dad's work.  It took about two weeks to build, just because of all the trips we made.  This compact machine launches a golf ball over 175 yards.  I am working on a better trigger system now...
By: Alex and Joey Productions

Continue Reading »]]> Sat, 23 Feb 2013 10:22:11 PST http://www.instructables.com/id/Trebuchet-2/ http://www.instructables.com/files/deriv/F16/R6LS/HD7TZDQ6/F16R6LSHD7TZDQ6.SQUARE2.jpg http://www.instructables.com/files/deriv/F16/R6LS/HD7TZDQ6/F16R6LSHD7TZDQ6.SQUARE.jpg http://www.instructables.com/files/deriv/F16/R6LS/HD7TZDQ6/F16R6LSHD7TZDQ6.SMALL.jpg Probuilder123 What did I/we make? A trebuchet How did you make it? Wood and nails and 3 pieces of pipe. I think it took like 15 pieces of wood. It took a while but we had a superviser watching us telling us if something was wrong or something was right.We did it by our selves and had no help but for if there was ...
By: Probuilder123

Continue Reading »]]> Sat, 16 Feb 2013 15:55:11 PST http://www.instructables.com/id/Bic-Pen-Blow-Gun/
Bic Pen Blow Gun - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FO3/MIGQ/HCJOBDQY/FO3MIGQHCJOBDQY.SQUARE2.jpg http://www.instructables.com/files/deriv/FO3/MIGQ/HCJOBDQY/FO3MIGQHCJOBDQY.SQUARE.jpg http://www.instructables.com/files/deriv/FO3/MIGQ/HCJOBDQY/FO3MIGQHCJOBDQY.SMALL.jpg hobby king To Build a miniature blow gun. You will need: Bic pen Paper Tape Straight pin with ball or flat head on back end Hot glue gun Scissors Note: this same process can be scaled up using PVC pipe for a more typical blow gun size. Disassemble A Pen Remove both ends of a pen and discard the two ends....
By: hobby king

Continue Reading »]]> Sun, 3 Feb 2013 20:27:31 PST http://www.instructables.com/id/How-to-Make-a-Coaxial-Air-Cannon/ http://www.instructables.com/files/deriv/FZ3/VMR0/HCB8RFBS/FZ3VMR0HCB8RFBS.SQUARE2.jpg http://www.instructables.com/files/deriv/FZ3/VMR0/HCB8RFBS/FZ3VMR0HCB8RFBS.SQUARE.jpg http://www.instructables.com/files/deriv/FZ3/VMR0/HCB8RFBS/FZ3VMR0HCB8RFBS.SMALL.jpg NightHawkInLight This video shows how I make a compact 2" bore air cannon with a coaxial piston valve. To understand how these valves work examine the third animation in the following link: http://www.spudfiles.com/forums/piston-valves-explained-visually-t8157.html I also go into more detail of how these cannons fun...
By: NightHawkInLight

Continue Reading »]]> Tue, 29 Jan 2013 15:22:12 PST http://www.instructables.com/id/Giant-Trebuchet/
Giant Trebuchet - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FKL/JQFE/HAQ31958/FKLJQFEHAQ31958.SQUARE2.jpg http://www.instructables.com/files/deriv/FKL/JQFE/HAQ31958/FKLJQFEHAQ31958.SQUARE.jpg http://www.instructables.com/files/deriv/FKL/JQFE/HAQ31958/FKLJQFEHAQ31958.SMALL.jpg Ganhaar Make a giant trebuchet in less than a day with a couple of trees, some rope and a few other easily found parts.   Best made in a paddock with plenty of room for hurling and a tractor with a loader will make it easy to get the throwing arm onto the support frame. Prepare Materials Actions require...
By: Ganhaar

Continue Reading »]]> Tue, 8 Jan 2013 05:41:50 PST http://www.instructables.com/id/2-Bicycle-Trebuchets-Forks-and-Frame/
2 Bicycle Trebuchets - Forks and Frame - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FTQ/CXLL/HBFFJJJN/FTQCXLLHBFFJJJN.SQUARE2.jpg http://www.instructables.com/files/deriv/FTQ/CXLL/HBFFJJJN/FTQCXLLHBFFJJJN.SQUARE.jpg http://www.instructables.com/files/deriv/FTQ/CXLL/HBFFJJJN/FTQCXLLHBFFJJJN.SMALL.jpg chuangt2u Good morning from Cambodia. This Instructable is a guide to building 2 simple traction trebuchets from a single bicycle. One trebuchet uses the front forks and front wheel - the other uses the frame and bottom bracket. With careful dismantling, use, and reassembly - there's no real reason why you...
By: chuangt2u

Continue Reading »]]> Sat, 5 Jan 2013 21:03:06 PST http://www.instructables.com/id/Juicebox-Dart/
Juicebox Dart - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FPA/X5YC/HAQ39ZNJ/FPAX5YCHAQ39ZNJ.SQUARE2.jpg http://www.instructables.com/files/deriv/FPA/X5YC/HAQ39ZNJ/FPAX5YCHAQ39ZNJ.SQUARE.jpg http://www.instructables.com/files/deriv/FPA/X5YC/HAQ39ZNJ/FPAX5YCHAQ39ZNJ.SMALL.jpg Mythbuster Kid This is how to make a dart launcher out of a juicebox. Materials What's Needed: Juicebox with a Straw Optional: Scissors Bend the Bendy Staw Bend the bendy straw like in the picture.  You may want to roll it up then unroll it a few times. Curl the Bendy Straw Twist the bendy straw like in t...
By: Mythbuster Kid

Continue Reading »]]> Sat, 29 Dec 2012 12:07:30 PST http://www.instructables.com/id/Make-a-desktop-trebuchet/
Make a desktop trebuchet - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FLP/HE2Z/HA5M7KQ8/FLPHE2ZHA5M7KQ8.SQUARE2.jpg http://www.instructables.com/files/deriv/FLP/HE2Z/HA5M7KQ8/FLPHE2ZHA5M7KQ8.SQUARE.jpg http://www.instructables.com/files/deriv/FLP/HE2Z/HA5M7KQ8/FLPHE2ZHA5M7KQ8.SMALL.jpg dustinandrews A trebuchet is a gravity powered catapult. This one is my own design. It's made to be laser cut (or scroll sawed) out of 1/8th MDF or plywood. This kit is an intermediate difficulty. There are lots of parts to glue and some need to be lined up by hand. It takes me about 30 minutes to go from a pile...
By: dustinandrews

Continue Reading »]]> Mon, 3 Dec 2012 19:59:25 PST http://www.instructables.com/id/How-To-Make-a-Carrot-Rifle/ http://www.instructables.com/files/deriv/F2Q/PGTA/H994S6W3/F2QPGTAH994S6W3.SQUARE2.jpg http://www.instructables.com/files/deriv/F2Q/PGTA/H994S6W3/F2QPGTAH994S6W3.SQUARE.jpg http://www.instructables.com/files/deriv/F2Q/PGTA/H994S6W3/F2QPGTAH994S6W3.SMALL.jpg HowToLou Have fun with a few $ in plumbing and a bag of carrots.  Nice Science Fair project, illustrating pneumatics.
By: HowToLou

Continue Reading »]]> Sat, 10 Nov 2012 16:32:48 PST http://www.instructables.com/id/How-To-Make-a-Coil-Gun/ http://www.instructables.com/files/deriv/FVZ/YAAF/H994S6UE/FVZYAAFH994S6UE.SQUARE2.jpg http://www.instructables.com/files/deriv/FVZ/YAAF/H994S6UE/FVZYAAFH994S6UE.SQUARE.jpg http://www.instructables.com/files/deriv/FVZ/YAAF/H994S6UE/FVZYAAFH994S6UE.SMALL.jpg HowToLou This video shows how to make a simple coil gun from an electric stapler and about $3 worth of PVC pipe.  This would be a great science fair project to show the power of electromagnetics.
By: HowToLou

Continue Reading »]]> Sat, 10 Nov 2012 16:32:48 PST http://www.instructables.com/id/Portable-pumpkin-catapult/
Portable pumpkin catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F9Q/OQJX/H91LGJWU/F9QOQJXH91LGJWU.SQUARE2.jpg http://www.instructables.com/files/deriv/F9Q/OQJX/H91LGJWU/F9QOQJXH91LGJWU.SQUARE.jpg http://www.instructables.com/files/deriv/F9Q/OQJX/H91LGJWU/F9QOQJXH91LGJWU.SMALL.jpg meikj #next_pages_container { width: 5px; hight: 5px; position: absolute; top: -100px; left: -100px; z-index: 2147483647 !important; } I built this catapult (actually a trebuchet) based on an article in Make Magazine by William Gurstelle.  It worked extremely well!  Was able to launch basketballs 80 - ...
By: meikj

Continue Reading »]]> Tue, 6 Nov 2012 10:48:38 PST http://www.instructables.com/id/how-to-make-a-pen-cap-catapult/
how to make a pen cap catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FD1/UDKG/H82UHBN0/FD1UDKGH82UHBN0.SQUARE2.jpg http://www.instructables.com/files/deriv/FD1/UDKG/H82UHBN0/FD1UDKGH82UHBN0.SQUARE.jpg http://www.instructables.com/files/deriv/FD1/UDKG/H82UHBN0/FD1UDKGH82UHBN0.SMALL.jpg Mr. tony stark this is a great little catapult to annoy people with. all you need is pen cap paper( this will be the ammo ) tape first, crumple up the paper to make a little ball. you now have ammo. (sorry for the fuzzy pic) now for the catapult. take the pen cap and put a piece of tape on the back, foldin...
By: Mr. tony stark

Continue Reading »]]> Sun, 7 Oct 2012 21:29:21 PDT http://www.instructables.com/id/Baby-Potato-gun-with-some-Kick/
Baby Potato gun with some Kick. - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FA0/PE3U/H7ANSST9/FA0PE3UH7ANSST9.SQUARE2.jpg http://www.instructables.com/files/deriv/FA0/PE3U/H7ANSST9/FA0PE3UH7ANSST9.SQUARE.jpg http://www.instructables.com/files/deriv/FA0/PE3U/H7ANSST9/FA0PE3UH7ANSST9.SMALL.jpg Homepwner So, I had built a potato Cannon 7 years ago.  I still use it but , I thought it would be cool to build a compact one. Then , I saw a couple of mini or micro guns meant to fire air soft pellets, on the Web.  I then thought of building a Mini Potato gun rather than simply  building  a compact version....
By: Homepwner

Continue Reading »]]> Fri, 21 Sep 2012 23:51:10 PDT http://www.instructables.com/id/wooden-slingshot/
wooden slingshot - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FVS/DKKI/H78T8IVY/FVSDKKIH78T8IVY.SQUARE2.jpg http://www.instructables.com/files/deriv/FVS/DKKI/H78T8IVY/FVSDKKIH78T8IVY.SQUARE.jpg http://www.instructables.com/files/deriv/FVS/DKKI/H78T8IVY/FVSDKKIH78T8IVY.SMALL.jpg Dzony9933 So i wanted to make slingshot to take care of some doves that nested under my roof and i cant sleep caus of em so this is what i made . :) geting started So i began with a piece of Y wood it is black locust and it has been drying for about a year maybe more. Cutting and taking of bark here i...
By: Dzony9933

Continue Reading »]]> Tue, 18 Sep 2012 07:46:50 PDT http://www.instructables.com/id/The-Stinger-Enemy-of-Small-Mammals-Everywhere/
The Stinger, Enemy of Small Mammals Everywhere - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FOW/H8N0/H6MF3ZWH/FOWH8N0H6MF3ZWH.SQUARE2.jpg http://www.instructables.com/files/deriv/FOW/H8N0/H6MF3ZWH/FOWH8N0H6MF3ZWH.SQUARE.jpg http://www.instructables.com/files/deriv/FOW/H8N0/H6MF3ZWH/FOWH8N0H6MF3ZWH.SMALL.jpg purpAl-chAos Don't you just love inflicting pain upon small mammals? What, you don't? OK I guess that's just me. Even if you aren't a sadistic freak you can still enjoy the wonders of shooting stuff. The Stinger is a small, very simple air cannon that I designed and made awhile ago. It's one of the first air can...
By: purpAl-chAos

Continue Reading »]]> Mon, 3 Sep 2012 08:59:28 PDT http://www.instructables.com/id/Build-a-CheapnSimple-Air-Cannon/
Build a Cheap'n'Simple Air Cannon - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F4T/0O5X/H4AGJZ9X/F4T0O5XH4AGJZ9X.SQUARE2.jpg http://www.instructables.com/files/deriv/F4T/0O5X/H4AGJZ9X/F4T0O5XH4AGJZ9X.SQUARE.jpg http://www.instructables.com/files/deriv/F4T/0O5X/H4AGJZ9X/F4T0O5XH4AGJZ9X.SMALL.jpg purpAl-chAos Hi there! This air cannon is a great project for anyone. It's easy to make, fun to play with, and not to eat. This is the first air cannon I ever built, but the most recent one I have finished. What? Let me explain. I started this project 3 to 4 years ago. This was a time were I really didn't know w...
By: purpAl-chAos

Continue Reading »]]> Mon, 23 Jul 2012 09:46:59 PDT http://www.instructables.com/id/Folding-Pocket-Catapult/
Folding Pocket Catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZ4/PFLE/H4AGLNSA/FZ4PFLEH4AGLNSA.SQUARE2.jpg http://www.instructables.com/files/deriv/FZ4/PFLE/H4AGLNSA/FZ4PFLEH4AGLNSA.SQUARE.jpg http://www.instructables.com/files/deriv/FZ4/PFLE/H4AGLNSA/FZ4PFLEH4AGLNSA.SMALL.jpg Jonnyboy-productions Description is in the name. Materials - thin popsicle sticks - duct tape - rubberband - hot glue - small thing like a bottle cap for the ammo to fit into - card box Get the container Get a container from a card box [ you can usually get them from a souvenier store] Cut sticks Cut the popsicl...
By: Jonnyboy-productions

Continue Reading »]]> Tue, 17 Jul 2012 18:03:40 PDT http://www.instructables.com/id/30-Minute-Desk-Catapult-I-made-it-at-TechShop/
30 Minute Desk Catapult (I made it at TechShop) - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F0F/TZL2/H4AFZIP5/F0FTZL2H4AFZIP5.SQUARE2.jpg http://www.instructables.com/files/deriv/F0F/TZL2/H4AFZIP5/F0FTZL2H4AFZIP5.SQUARE.jpg http://www.instructables.com/files/deriv/F0F/TZL2/H4AFZIP5/F0FTZL2H4AFZIP5.SMALL.jpg madaro Here's my guide on how to build a small catapult out of simple wood scraps. Once you have the parts, you could be 30 minutes away from flinging small objects at friends, family, and coworkers!  TechShop Website Materials All measurements are approximate. Also, the picture has extras of some mate...
By: madaro

Continue Reading »]]> Mon, 9 Jul 2012 18:56:38 PDT http://www.instructables.com/id/Backyard-Ballistics/ http://cdn.instructables.com/FFZ/BYH9/H2WEZDK4/FFZBYH9H2WEZDK4.SQUARE2.jpg http://cdn.instructables.com/FFZ/BYH9/H2WEZDK4/FFZBYH9H2WEZDK4.SQUARE.jpg http://cdn.instructables.com/FFZ/BYH9/H2WEZDK4/FFZBYH9H2WEZDK4.SMALL.jpg mikeasaurus TAKE COVER! Potato cannons, rockets, and explosions; does it get any better than this? I think not. Backyard Ballistics is a collection of creations made by the Instructables community around all things dangerous. We've got net guns, fire breathing and firework making. Of course, we also have severa...
By: mikeasaurus

Continue Reading »]]> Tue, 19 Jun 2012 15:10:28 PDT http://www.instructables.com/id/HarpoonGrappling-Hook-Gun/ http://www.instructables.com/files/deriv/F56/O6CD/H3BL0E30/F56O6CDH3BL0E30.SQUARE2.jpg http://www.instructables.com/files/deriv/F56/O6CD/H3BL0E30/F56O6CDH3BL0E30.SQUARE.jpg http://www.instructables.com/files/deriv/F56/O6CD/H3BL0E30/F56O6CDH3BL0E30.SMALL.jpg Toga_Dan Wild Wild West had the derringer which fired a piton and cable into a distant wall. Batman had grappling hooks + guns. I wanted a harpoon/grappling hook which could be launched hard enough togo through the roof or car body and latch itself there. Here it is. The tip of the harpoon is 3/4" round ste...
By: Toga_Dan

Continue Reading »]]> Mon, 11 Jun 2012 23:54:59 PDT http://www.instructables.com/id/A-So-Simple-Ballista-That-Has-a-Bipod-and-Can-Shoo/ http://www.instructables.com/files/deriv/F6P/9VRY/H2WEWV40/F6P9VRYH2WEWV40.SQUARE2.jpg http://www.instructables.com/files/deriv/F6P/9VRY/H2WEWV40/F6P9VRYH2WEWV40.SQUARE.jpg http://www.instructables.com/files/deriv/F6P/9VRY/H2WEWV40/F6P9VRYH2WEWV40.SMALL.jpg omgswords A Quick Made Ballista Catapult That Shoots 20 Feet. It has: A bipod Auto ready ram system the ability to shoot rods 20-26 ft The ability to shoot plastic BB's 30-40 ft ALL OF THE POWER OF ONE RUBBER BAND ps. I made this on accident
By: omgswords

Continue Reading »]]> Thu, 7 Jun 2012 19:31:14 PDT http://www.instructables.com/id/Hand-Held-Ballista/
Hand Held Ballista - More DIY How To Projects]]> http://cdn.instructables.com/FUF/1QHC/H27LSJ7C/FUF1QHCH27LSJ7C.SQUARE2.jpg http://cdn.instructables.com/FUF/1QHC/H27LSJ7C/FUF1QHCH27LSJ7C.SQUARE.jpg http://cdn.instructables.com/FUF/1QHC/H27LSJ7C/FUF1QHCH27LSJ7C.SMALL.jpg sphsengineering We are building a Torsion powered bow (Ballista) for our siege engine project. It is set up as a bullet crossbow, with the option of firing bolts with the use of a removable track. Our plan is to build it to fit within the specifications of our 18x18x18 size limit out of wood and string or modern el...
By: sphsengineering

Continue Reading »]]> Wed, 23 May 2012 14:30:36 PDT http://www.instructables.com/id/Twin-Crossbow-Introduction/
Twin Crossbow Introduction - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FIZ/J15D/H1KHAFVJ/FIZJ15DH1KHAFVJ.SQUARE2.jpg http://www.instructables.com/files/deriv/FIZ/J15D/H1KHAFVJ/FIZJ15DH1KHAFVJ.SQUARE.jpg http://www.instructables.com/files/deriv/FIZ/J15D/H1KHAFVJ/FIZJ15DH1KHAFVJ.SMALL.jpg sphsengineering In our engineering class we have to create a medieval siege machine. Some of the rules of this project are that the machine has to fit in an 18 by 18 inch box and must be able to fire a 1 inch ball. We also were not allowed to use any metal springs.  We choose to design a twin crossbow because it wo...
By: sphsengineering

Continue Reading »]]> Mon, 21 May 2012 20:00:06 PDT http://www.instructables.com/id/The-trebuchet-from-plywood/
The trebuchet from plywood - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FHU/T2KN/H2CE77MH/FHUT2KNH2CE77MH.SQUARE2.jpg http://www.instructables.com/files/deriv/FHU/T2KN/H2CE77MH/FHUT2KNH2CE77MH.SQUARE.jpg http://www.instructables.com/files/deriv/FHU/T2KN/H2CE77MH/FHUT2KNH2CE77MH.SMALL.jpg sphsengineering Proposal Our goal is to make a trebuchet capable of throwing a ball as big as a inch and a half across 50 feet. We will only be able to use wood or fiber board but not any type of metal. Each piece will be milled out and assemble with glue or any other type of adhesive. Each team member will have a...
By: sphsengineering

Continue Reading »]]> Fri, 18 May 2012 07:59:42 PDT http://www.instructables.com/id/anti-aircraft-catapult-/
anti aircraft catapult !! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F0O/I3N6/H1ZG6GXN/F0OI3N6H1ZG6GXN.SQUARE2.jpg http://www.instructables.com/files/deriv/F0O/I3N6/H1ZG6GXN/F0OI3N6H1ZG6GXN.SQUARE.jpg http://www.instructables.com/files/deriv/F0O/I3N6/H1ZG6GXN/F0OI3N6H1ZG6GXN.SMALL.jpg siegeking you will need:1x peg 1x washer  1.bend the aluminium about 2cm apart. 2.turn one side of the peg upside-down and tape. 3. insert the aluminium and tape on the top and bottom.
By: siegeking

Continue Reading »]]> Wed, 9 May 2012 02:22:53 PDT http://www.instructables.com/id/Mini-Siege-Engines/
Mini Siege Engines - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZC/PA0N/H19RT1K9/FZCPA0NH19RT1K9.SQUARE2.jpg http://www.instructables.com/files/deriv/FZC/PA0N/H19RT1K9/FZCPA0NH19RT1K9.SQUARE.jpg http://www.instructables.com/files/deriv/FZC/PA0N/H19RT1K9/FZCPA0NH19RT1K9.SMALL.jpg WYE_Lance Ah catapults - possibly the most engaging and exciting project to introduce students to some fundamental ideas in physics and engineering. Stored energy, trajectory, the value of density in projectiles, and of course firing stuff across the room - so much to learn, and yet so much fun to be had! ...
By: WYE_Lance

Continue Reading »]]> Mon, 30 Apr 2012 11:54:36 PDT http://www.instructables.com/id/Mini-Siege-Engine-Mousetrap-catapault/
Mini Siege Engine: Mousetrap catapault - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F48/N5Q2/GZUASLT0/F48N5Q2GZUASLT0.SQUARE2.jpg http://www.instructables.com/files/deriv/F48/N5Q2/GZUASLT0/F48N5Q2GZUASLT0.SQUARE.jpg http://www.instructables.com/files/deriv/F48/N5Q2/GZUASLT0/F48N5Q2GZUASLT0.SMALL.jpg Philisawesome Everybody loves siege engines, right? They're even better when you can throw them in your backpack, and take them place! I built this catapult in around 20 minutes, but most of that was figuring out what I did wrong, and fixing it. If you follow the steps I've compiled, it shouldn't take you more th...
By: Philisawesome

Continue Reading »]]> Sat, 17 Mar 2012 17:08:09 PDT http://www.instructables.com/id/Toothpick-Shooter-2/
Toothpick Shooter - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FRW/M8NQ/GZLW4BVN/FRWM8NQGZLW4BVN.SQUARE2.jpg http://www.instructables.com/files/deriv/FRW/M8NQ/GZLW4BVN/FRWM8NQGZLW4BVN.SQUARE.jpg http://www.instructables.com/files/deriv/FRW/M8NQ/GZLW4BVN/FRWM8NQGZLW4BVN.SMALL.jpg BTAPclub This is a simple toothpick shooter you can make. You probably have everything you need in your house. If you do it right, it can shoot about 20 meters. Gather Materials As I said, most of the materials and tools you probably already have. I found that a hand pump is better than a foot pump, but I...
By: BTAPclub

Continue Reading »]]> Sun, 11 Mar 2012 17:21:41 PDT http://www.instructables.com/id/Pocket-Sized-Grappling-Gun/
Pocket Sized Grappling Gun - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F31/S6NP/GZKGLWZJ/F31S6NPGZKGLWZJ.SQUARE2.jpg http://www.instructables.com/files/deriv/F31/S6NP/GZKGLWZJ/F31S6NPGZKGLWZJ.SQUARE.jpg http://www.instructables.com/files/deriv/F31/S6NP/GZKGLWZJ/F31S6NPGZKGLWZJ.SMALL.jpg RoboTable Grappling hooks are overated, they are big and bulky, obnoxiously loud when firing, and are very pricy with a price tag that can be as much as 200$! Sometimes even more. Then one day I found this instructable, I was instantly inspired! After three prototypes and some tweaking I feel confident that m...
By: RoboTable

Continue Reading »]]> Sun, 11 Mar 2012 17:21:37 PDT http://www.instructables.com/id/Trebuchet-business-card-Trebucard/
Trebuchet business card - Trebucard - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FO1/3Q3R/GZ5NTLE5/FO13Q3RGZ5NTLE5.SQUARE2.jpg http://www.instructables.com/files/deriv/FO1/3Q3R/GZ5NTLE5/FO13Q3RGZ5NTLE5.SQUARE.jpg http://www.instructables.com/files/deriv/FO1/3Q3R/GZ5NTLE5/FO13Q3RGZ5NTLE5.SMALL.jpg clide The Trebucard is a business card sized mini trebuchet. It is designed to fire jumbo paper clips and uses 16 pennies as a counter-weight. Unlike a traditional trebuchet the Trebucard uses the surface it is resting on as a pivot rather than being mounted on a frame. See a demonstration of the card he...
By: clide

Continue Reading »]]> Tue, 28 Feb 2012 09:10:30 PST http://www.instructables.com/id/Versatile-Multi-shot-Pneumatic-Cannon/
Versatile Multi-shot Pneumatic Cannon - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FIQ/FKUM/GYR369ME/FIQFKUMGYR369ME.SQUARE2.jpg http://www.instructables.com/files/deriv/FIQ/FKUM/GYR369ME/FIQFKUMGYR369ME.SQUARE.jpg http://www.instructables.com/files/deriv/FIQ/FKUM/GYR369ME/FIQFKUMGYR369ME.SMALL.jpg radicalnegative1 One of the major drawbacks of making and operating a pneumatic cannon is the need for a new air charge for each shot. This need for re-pressurization of one's cannon can really eat up a lot of time and cut into the fun factor of a day of spudding, chunking, flinging etc. In order to maximize the "u...
By: radicalnegative1

Continue Reading »]]> Sun, 19 Feb 2012 11:00:28 PST http://www.instructables.com/id/Make-a-PVC-Catapult/
Make a PVC Catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FD9/C64E/GYN8NQM8/FD9C64EGYN8NQM8.SQUARE2.jpg http://www.instructables.com/files/deriv/FD9/C64E/GYN8NQM8/FD9C64EGYN8NQM8.SQUARE.jpg http://www.instructables.com/files/deriv/FD9/C64E/GYN8NQM8/FD9C64EGYN8NQM8.SMALL.jpg MMoeller In this I will show you how to make a simple catapult out of PVC pipe. All the materials you will need are: 4 1" PVC pipes 4 4” PVC pipes 6 3” PVC pipes 5 corner pieces 4 T connectors 3 end pieces 1 4 way connector 4 2 way connectors Duct tape To cut PVC pipe, you just need to buy a large pipe of i...
By: MMoeller

Continue Reading »]]> Fri, 17 Feb 2012 05:08:01 PST http://www.instructables.com/id/Altoids-tin-catapult/
Altoids tin catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZM/3U28/GYQFHDMJ/FZM3U28GYQFHDMJ.SQUARE2.jpg http://www.instructables.com/files/deriv/FZM/3U28/GYQFHDMJ/FZM3U28GYQFHDMJ.SQUARE.jpg http://www.instructables.com/files/deriv/FZM/3U28/GYQFHDMJ/FZM3U28GYQFHDMJ.SMALL.jpg yapoyo this catapult can fire far . It doesn't hurt though. materials Hot glue gun and sticks Thin cardboard 32 mm binder clip(mauly clip) scissors electrical or duct tape plastic spoon Altoids tin (duh) secure the spoon Cut the spoon to the length of the tin. now tape it to the handle of the clip ...
By: yapoyo

Continue Reading »]]> Thu, 16 Feb 2012 18:04:21 PST http://www.instructables.com/id/my-homemade-air-cannon/ http://www.instructables.com/files/deriv/FF3/VO7Z/GY65QIN4/FF3VO7ZGY65QIN4.SQUARE2.jpg http://www.instructables.com/files/deriv/FF3/VO7Z/GY65QIN4/FF3VO7ZGY65QIN4.SQUARE.jpg http://www.instructables.com/files/deriv/FF3/VO7Z/GY65QIN4/FF3VO7ZGY65QIN4.SMALL.jpg dr.pepper1256 This is a very simple and cheap air cannon that I built. If you have an idea to fix the leaking problem or suggestions for ammo please tell me! : ) This is the list of materials I used. 1: 1/4threaded compressor barb(came in an accesory pack) 2: 4ft long 1in in diameter pvc (cut in 2ft pieces) 3: 1i...
By: dr.pepper1256

Continue Reading »]]> Wed, 8 Feb 2012 10:51:05 PST http://www.instructables.com/id/Build-the-Magnetapult-a-Magnetic-Catapult/
Build the Magnetapult, a Magnetic Catapult! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F90/WFD5/GY18K929/F90WFD5GY18K929.SQUARE2.jpg http://www.instructables.com/files/deriv/F90/WFD5/GY18K929/F90WFD5GY18K929.SQUARE.jpg http://www.instructables.com/files/deriv/F90/WFD5/GY18K929/F90WFD5GY18K929.SMALL.jpg jfehr67 The Magnetapult is an Open Hardware Project on Kickstarter: http://kck.st/xQap2h. You can see a video of it in action there or at youtube.  In this instructable, I've put the original version with parts that are easier to get. How'd I come up with it? Most of us have played with Neodymium superma...
By: jfehr67

Continue Reading »]]> Tue, 31 Jan 2012 11:27:18 PST http://www.instructables.com/id/MouseTrap-Catapultp/
MouseTrap Catapult - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FW0/QSM0/GXL5OODD/FW0QSM0GXL5OODD.SQUARE2.jpg http://www.instructables.com/files/deriv/FW0/QSM0/GXL5OODD/FW0QSM0GXL5OODD.SQUARE.jpg http://www.instructables.com/files/deriv/FW0/QSM0/GXL5OODD/FW0QSM0GXL5OODD.SMALL.jpg JoshBar Here is a mouse trap catapult designed for safety and economy. We designed and built it for our project management class. It has a simple design and is easy to construct (we built it in about ten minutes). It has a healthy range for it's size and is fun to fire. Parts needed One mouse trap-- Eigh...
By: JoshBar

Continue Reading »]]> Fri, 20 Jan 2012 11:04:58 PST http://www.instructables.com/id/Pump-Action-Marshmallow-Gun/
Pump-Action Marshmallow Gun - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F0T/JN5J/GWNWH8OY/F0TJN5JGWNWH8OY.SQUARE2.jpg http://www.instructables.com/files/deriv/F0T/JN5J/GWNWH8OY/F0TJN5JGWNWH8OY.SQUARE.jpg http://www.instructables.com/files/deriv/F0T/JN5J/GWNWH8OY/F0TJN5JGWNWH8OY.SMALL.jpg poikilotherm I was bored one day so I decided to make a gun to shoot my brothers with.  I needed a projectile that was soft, readily available and inexpensive.  The answer:  marshmallows!  A marshmallow gun is usually very simple:  a tube that you put a marshmallow in.  You blow in one end and the marshmallow fl...
By: poikilotherm

Continue Reading »]]> Mon, 26 Dec 2011 19:24:21 PST http://www.instructables.com/id/Nerf-Assault-Rifle/ http://www.instructables.com/files/deriv/F6E/NYJR/GW88U550/F6ENYJRGW88U550.SQUARE2.jpg http://www.instructables.com/files/deriv/F6E/NYJR/GW88U550/F6ENYJRGW88U550.SQUARE.jpg http://www.instructables.com/files/deriv/F6E/NYJR/GW88U550/F6ENYJRGW88U550.SMALL.jpg dremeldude This is my first cannon that I built a few years ago. It is meant to shoot AA batteries or Nerf Darts. Since this was a prototype to a higher pressure cannon,LINK, I didn't use pressure rated pipe, It can only take about 40 psi safely. It still can shoot a nerf dart a good 50-150 ft, (an estimate). ...
By: dremeldude

Continue Reading »]]> Sun, 18 Dec 2011 09:32:15 PST http://www.instructables.com/id/the-everything-cannon/ http://www.instructables.com/files/deriv/FJW/7O8K/GWCACJSJ/FJW7O8KGWCACJSJ.SQUARE2.jpg http://www.instructables.com/files/deriv/FJW/7O8K/GWCACJSJ/FJW7O8KGWCACJSJ.SQUARE.jpg http://www.instructables.com/files/deriv/FJW/7O8K/GWCACJSJ/FJW7O8KGWCACJSJ.SMALL.jpg dremeldude This is my 2'nd cannon, if you saw my first cannon, I said it was a prototype, this is the actual cannon. I made it with pressure rated pipe and added a threaded valve so I could make attachments.
By: dremeldude

Continue Reading »]]> Sun, 18 Dec 2011 09:29:51 PST http://www.instructables.com/id/Pen-Or-is-it/
Pen: Or is it? - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F9Q/9Q4O/GUVTYA7N/F9Q9Q4OGUVTYA7N.SQUARE2.jpg http://www.instructables.com/files/deriv/F9Q/9Q4O/GUVTYA7N/F9Q9Q4OGUVTYA7N.SQUARE.jpg http://www.instructables.com/files/deriv/F9Q/9Q4O/GUVTYA7N/F9Q9Q4OGUVTYA7N.SMALL.jpg MakMelon The pen launcher: made out of a pen, this device shoots it's cap around 40 feet. It's hard to tell the difference between a regular pen and a pen launcher, until you press the button. This instructable shows how to convert a pen to a pen launcher. Warning: This can be used for target practice, but...
By: MakMelon

Continue Reading »]]> Sat, 12 Nov 2011 12:34:47 PST http://www.instructables.com/id/easy-two-man-air-cannon-shoots-20-150yrds/
easy two man air cannon (shoots 20-150yrds) - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FEB/NWRG/GRSXC8ZD/FEBNWRGGRSXC8ZD.SQUARE2.jpg http://www.instructables.com/files/deriv/FEB/NWRG/GRSXC8ZD/FEBNWRGGRSXC8ZD.SQUARE.jpg http://www.instructables.com/files/deriv/FEB/NWRG/GRSXC8ZD/FEBNWRGGRSXC8ZD.SMALL.jpg snorelaxy7 this cannon can fire up to 150yrds depending on the shape and size of the pellet you use. this cannon is easy to make and use as the parts are extremely simple and every house will have these parts. WARNING: this cannon shoots at DISCLAIMER: i am NOT responsible for any damage you cause to anything...
By: snorelaxy7

Continue Reading »]]> Fri, 23 Sep 2011 09:14:27 PDT http://www.instructables.com/id/Zoob-Shooter/
Zoob Shooter! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FRA/YGBZ/GS3BE68Z/FRAYGBZGS3BE68Z.SQUARE2.jpg http://www.instructables.com/files/deriv/FRA/YGBZ/GS3BE68Z/FRAYGBZGS3BE68Z.SQUARE.jpg http://www.instructables.com/files/deriv/FRA/YGBZ/GS3BE68Z/FRAYGBZGS3BE68Z.SMALL.jpg arpruss The Zoob Shooter is a joint invention by my 6-year-old son and 9-year-old daughter.  It snaps together three Zoob pieces to make a toy that can shoot out a round-headed dart up to about 7.5 feet at a target. Be careful to point away from people and fragile objects. Basic Zoob pieces have different...
By: arpruss

Continue Reading »]]> Wed, 7 Sep 2011 15:01:00 PDT http://www.instructables.com/id/How-to-make-a-simple-ninja-blade/
Warhammer 40k abandoned house out of cardboard! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FGX/8TKR/GTQVR3YW/FGX8TKRGTQVR3YW.SQUARE2.jpg http://www.instructables.com/files/deriv/FGX/8TKR/GTQVR3YW/FGX8TKRGTQVR3YW.SQUARE.jpg http://www.instructables.com/files/deriv/FGX/8TKR/GTQVR3YW/FGX8TKRGTQVR3YW.SMALL.jpg SgtJellyfish Hello dear people of Earth! Have orks been raiding your little planet? Need some quick cover? Well Sgt Jellyfish's abandoned house will be perfect for you! It even comes with dirt paint colour! What will you little servitors need: Some cardboard (around 10x10) Stanley/x-acto/sharp knife PVA glue (a...
By: SgtJellyfish

Continue Reading »]]> Sun, 4 Sep 2011 16:07:06 PDT