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cardapult, the business card catapult

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cardapult, the business card catapult

Unread postAuthor: clide » Sat Apr 04, 2009 11:13 pm

Here is my latest project which is the subject of my first instructable. A business card that turns into a desktop catapult.

http://www.instructables.com/id/Cardapu ... -Catapult/

<img src="http://gbcannon.com/pics/cardapult/frontboth.header.jpg">

[youtube]http://www.youtube.com/watch?v=13Z7o5Tum_E[/youtube]
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<a href="http://gbcannon.com" target="_blank"><img src="http://gbcannon.com/pics/misc/pixel.png" border="0"></a>latest update - debut of the cardapult

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Unread postAuthor: roboman » Sat Apr 04, 2009 11:21 pm

That is incredibly awesome!!!
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Unread postAuthor: suburban spudgunner » Sat Apr 04, 2009 11:33 pm

Absolute genius...

A good way to advertise your skills...
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Unread postAuthor: chartreusesnot » Sun Apr 05, 2009 12:29 am

clide, I was totally lurking your site after seeing this on boing boing, and saw the minipump series... could you post a cannon thread with inside pics of that?
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_Fnord wrote:OMG you have broked teh universe!!!11exclamationpoint!1!

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http://www.youtube.com/watch?v=wLNjMSGxp00
^^^^CLICK^^^^
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Unread postAuthor: inonickname » Sun Apr 05, 2009 12:42 am

Awesome, going to go print it out and build one now! Impractical, but very unique and cool, great innovation!
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 05, 2009 1:35 am

Great work clide, original and effective! Hell, I'd hire you :)

chartreusesnot wrote:clide, I was totally lurking your site after seeing this on boing boing, and saw the minipump series... could you post a cannon thread with inside pics of that?


Look around theSpudtech archive

Animation of the internals can be found here.
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Unread postAuthor: mark.f » Sun Apr 05, 2009 1:55 am

I saw this when you put it up for your site.

I emailed my friend and told him "this is what a mechanical engineer's business card looks like." :)
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Unread postAuthor: inonickname » Sun Apr 05, 2009 4:04 am

Hey,

I finished my one (printed it out on white paper, used a glue stick to stick the paper to the shiny side of a cereal box- it should peel off with no residue).

Even when being cut out by hand the plans were precise enough to complete it and still have it function and fold together neatly. If you're building anymore, I can recommend a different glue. Try a 'balsa cement' used for well..gluing balsa together in model planes. Dries very fast and is stronger than whatever craft glue and bonds better to any shiny material (like the shiny side).

On the legs/supports I didn't build the axles, I found friction was enough to keep them in place securely.

It shoots a few meters (it's only a business card) with a small elastic band (you can get more with a stronger one, but I found it made the axles break.).

Image

Image

Image

Thanks for sharing Clide, the plans (and the product) are very compact..but it seems too much effort unless you mechanized or at least specialized the production. Still, very awesome and very fun..
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Unread postAuthor: starman » Sun Apr 05, 2009 12:29 pm

Really great work Clide! That's the kind of thing that separates you from the pack.

You are probably already planning this, but I would build several of these and literally use them for biz cards.
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Unread postAuthor: sniper hero » Sun Apr 05, 2009 12:41 pm

wow this is awesome in class :D
I'll make one when I've got some spare time
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Unread postAuthor: jimmy101 » Sun Apr 05, 2009 12:48 pm

Damn Clide, that's pretty slick!

When are you going to do a buisness card that converts to a spudgun? :wink:
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Unread postAuthor: clide » Tue Apr 07, 2009 7:55 pm

Thanks guys.

Thanks for the pics of your build inonick. Do most hobby stores have that balsa cement? I may give that a shot. On my cereal box version I actually pealed the shiny layer off any area I was gluing. That's why I went with only 2 legs instead of 3 on that one. The inner pieces are all missing their shiny layers, and 3 legs with their shiny layers won't fit.

I can get about 15 feet with a Tic-Tac with a comfortable rubber band strength. Any more and it starts wearing out the card pretty fast.

I have a cutting machine that makes construction time quite a bit more reasonable. I've made a batch of 10 of them that I plan on giving away in interviews

jimmy101 wrote:When are you going to do a buisness card that converts to a spudgun? :wink:


I don't know if it would classify as a spudgun, but I'm thinking about trying to make one that uses bellows and a barrel to launch small objects (same idea as those toy rocket launchers). Haven't made a prototype yet so I'm not sure I can make it work.
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<a href="http://gbcannon.com" target="_blank"><img src="http://gbcannon.com/pics/misc/pixel.png" border="0"></a>latest update - debut of the cardapult

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Unread postAuthor: starman » Tue Apr 07, 2009 8:10 pm

Now we need a new section for cannons....Origami Cannons.... 8)
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Unread postAuthor: inonickname » Tue Apr 07, 2009 8:47 pm

clide wrote:Do most hobby stores have that balsa cement?


Yep, you should be able to get it in any hobby store that stocks things like balsa wood, modeling tissue or dope. Anything along those lines. Make sure you work with good ventilation as the fumes aren't pleasant. You could probably boost your production speeds rapidly with it..will literally be stronger than a glue pen or wood glue within seconds.

It's also clear, don't let the name mislead you.

And I agree, and improvised and offbeat cannon section would be cool.
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Unread postAuthor: daberno123 » Tue Apr 07, 2009 8:50 pm

I'm trying to convince my mom that one of those machines is a necessity for her scrapbooking projects... for some reason she's a bit suspicious of me suddenly taking a great interest in her hobby. :D
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