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Marshmallow Catapult

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Project by Lockwatcher posted 04-14-2011 03:46 AM 6981 views 49 times favorited 17 comments Add to Favorites Watch

Worked with a scout group a number of years ago and designed this project for the boys to build. They had a great time building them, and even a better time shooting them off! These were built out of pine to make the project inexpensive.

Building this is easy…you could have one built from scraps in an hour. Note the trim nail used as a trigger. The detent is marshmallow sized (forstner bit) to make loading it easier. Also, the dowel rod (the stop) is covered with a small length of tubing (this was done to prevent breakage of the dowel rod). You will need to experiment on what size rubber band to use, but we can fire a marshmallow close to 20 feet…

Just a fun simple project. If you build one…be sure to leave a picture of it in the comment section here as well as on your project page.

I just added a blog with instructions for building your own: Marshmallow Catapult

And my other projects: Lockwatcher's Projects

Ken C

-- Lockwatcher, Ohio, http://www.lockwatcher.com/





17 comments so far

View missingdigitworkshop's profile

missingdigitworkshop

146 posts in 1850 days


#1 posted 04-14-2011 04:22 AM

Very cool.
Would you happen to have any plans or rough measurements?
My Scouts will love this.

-- Do not be discouraged by those who don't. Be inspired by those who do.

View a1Jim's profile

a1Jim

112525 posts in 2300 days


#2 posted 04-14-2011 05:15 AM

How about making it bigger and use pillows.

-- http://artisticwoodstudio.com Custom furniture

View TopamaxSurvivor's profile

TopamaxSurvivor

15024 posts in 2398 days


#3 posted 04-14-2011 07:18 AM

Nice project for kids!

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Jeffery Mullen's profile

Jeffery Mullen

323 posts in 1540 days


#4 posted 04-14-2011 11:51 AM

I have been looking for a project to make with the box of rubber bands I have. This project looks like a hit for me. I would like to build one if you don’t mind. Thanks for sharing I love it. can you post plans on this one ??

View SplashMaster's profile

SplashMaster

153 posts in 1583 days


#5 posted 04-14-2011 01:57 PM

Nice This one will surly find its way to my scouts thanks for the idea

View Paulo in Texas's profile

Paulo in Texas

131 posts in 1412 days


#6 posted 04-14-2011 04:32 PM

This looks like a fun project, and could even be played indoors without worrying about breaking anything or putting an eye out.

Then again we know that little boys won’t try putting marbles on there…

;-)

View FunkadelicAlex's profile

FunkadelicAlex

146 posts in 1414 days


#7 posted 04-14-2011 07:23 PM

This is awesome. I’m 30 years old, but might just build one for myself… haha.

-- Alex -- "I will one day write something intelligent, witty, or humorous here"

View TopamaxSurvivor's profile

TopamaxSurvivor

15024 posts in 2398 days


#8 posted 04-14-2011 08:20 PM

Alex, I’m 60+ I always make one for me when I build toys ;-))

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View murch's profile

murch

1184 posts in 1347 days


#9 posted 04-14-2011 08:45 PM

This has FUN written all over it. A marsh-mallow catapult. You can’t go wrong with this one.

-- A family man has photos in his wallet where his money used to be.

View bko's profile

bko

115 posts in 1740 days


#10 posted 04-14-2011 09:14 PM

This is great! I had my son’s Boy Scout Troop help Cub Scout Webelos build this style of catapult last Fall at our big recruiting event. I set up my hand miter box and let the Cubs saw out the parts for the base and two uprights. They then drilled 1/4” holes for the pivot and several stop points.

I cut a 6” diameter hole in piece of poster board and drew concentric circles around it like a bullseye. It takes some practice to get a marshmallow through the hole at 10 feet, but it was a lot of fun.

Here’s a news photo from the event: http://www.wickedlocal.com/holliston/features/x1404219817/Scouts-camp-out-in-Holliston?img=2

—Brian

View Lockwatcher's profile

Lockwatcher

85 posts in 1415 days


#11 posted 04-15-2011 12:46 PM

Okay, I have had requests…so I wrote up instructions on building this…

It can be found here: Marschmallow Catapult

Thanks, Ken C.

-- Lockwatcher, Ohio, http://www.lockwatcher.com/

View missingdigitworkshop's profile

missingdigitworkshop

146 posts in 1850 days


#12 posted 04-25-2011 03:12 AM

I made six of these for nephews and nieces and they were a huge hit.
Your measurements were spot on. Next week my scouts will be making one.

Thanks for the post and plans.

-- Do not be discouraged by those who don't. Be inspired by those who do.

View missingdigitworkshop's profile

missingdigitworkshop

146 posts in 1850 days


#13 posted 05-05-2011 04:26 AM

Here are a couple of shots of the catapults my scouts made. We used good ole duct tape in place of the tubing.
These things ROCK!

-- Do not be discouraged by those who don't. Be inspired by those who do.

View NormG's profile

NormG

4402 posts in 1726 days


#14 posted 05-28-2011 06:38 AM

Great job, I bet they really enjoyed that project

-- Norman

View Jeffery Mullen's profile

Jeffery Mullen

323 posts in 1540 days


#15 posted 06-20-2011 07:26 AM

I built 6 of these and boy did they go fast when I showed them people. I made mine real power full and they shoot 60 feet forward and about 10 feet high in the air. I changed the way I put the rubber band on and made difftent holes for the dowls to go into but I kept the look the same as yours. I rapped rubber bands around the dowl where the bord hits when it launches. I also sanded all the edges smooth. I plan on making allot more . Thanks for the pattern on how to make these and put them togeather. My scroll saw made it real easy for some of the cuts.

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