The Water Balloon Launch-o-Matic 1.0.0

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Project by Eric Vossbrink posted 07-08-2009 09:13 PM 7856 views 36 times favorited 23 comments Add to Favorites Watch

Update: Wednesday 7:18 pm

After many launches out in the front yard, the I found the smaller the water balloon…the longer the distance. I’ve also pitched up the front end and added a second bungee cord. maintaining the throw of the arm, but raising the trajectory and giving a little more oomph…. the result. 45’ 5”.

one post design modification is that the crossbar needs to be beefier. I broke 2 in distance trials today.

Look for the Launch-o-Matic 1.0.1 inthe days to come.

for all you highfalutin, in it for the arte, got all the best equipment, practical things like kitchens, armoires and cutting board makin’ “real” woodworkers…

From the guy who brought you the Left Handed Pencil Holder…

The Water Balloon Launch-o-Matic 1.0.0

This can come in handy when we have water wars with the McCoy’s across the street. The down side is that is so small that it doesn’t fire all that far maybe 30 feet.

It’s a great summer project, and it took the sum total 1 hour, a 2×4, a 2×2 and a few screws, glue, eye bolts, a bungee cord and a 6 year old constantly saying “is it done yet, is it done yet?”

Seriously, I’m going to modify it from the band powered to a Torsion powered catapult. If I can get a water balloon 50 feet with enough velocity soak my neighbor, I’ll be happy.

Unfortunately my 10 year old could not time the shutter on the camera to get the balloon leaving the contraption…maybe next time.

For all those who want to re-live the glory of the left handed pencil holder…click here


23 comments so far

View kolwdwrkr's profile


2821 posts in 3618 days

#1 posted 07-08-2009 09:24 PM

lol, looks fun. Maybe you can tighten the tie down some to give it more resistance when you pull it back. That way it will shoot farther.

-- ~ Inspiring those who inspire me ~

View Dudley's profile


742 posts in 3288 days

#2 posted 07-08-2009 09:27 PM

Absolutely nobody should be without one of those. Neat. LOL

-- Dudley Young USN Retired. Sebastian, Fl.

View lew's profile


12102 posts in 3783 days

#3 posted 07-08-2009 10:07 PM

You need to add a remote release. That way you can get unsuspecting folks strolling on the sidewalk!!

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View bowyer's profile


340 posts in 3424 days

#4 posted 07-09-2009 01:00 AM

This project is perfect!!! The 6 year old in me wants to make one! Keep us posted on the refinements


-- If at first you don't succeed...Don't try skydiving

View a1Jim's profile


117126 posts in 3605 days

#5 posted 07-09-2009 01:04 AM

My neighbors cat would really enjoy trying to catch some water balloons after I make mine.(Cat lovers I’m just kidding)

-- wood crafting & woodworking classes

View DaleM's profile


958 posts in 3412 days

#6 posted 07-09-2009 01:10 AM

I’d guess that 30 feet is just about far enough to get you into trouble.

-- Dale Manning, Carthage, NY

View ProutyBoy's profile


33 posts in 3786 days

#7 posted 07-09-2009 03:20 AM

hmmmm…version 1.0.0? I’ll wait awhile for the bugs to get worked out.

View Sawdustonmyshoulder's profile


475 posts in 3656 days

#8 posted 07-09-2009 03:25 AM

Here you go. Scale this puppy up and send about a gallon of water in a balloon right through the McCoy’s front door. Go, Hatfields!!!


-- The more skilled you are at something, the worse you are at it when someone is watching.

View CarlB's profile


40 posts in 3345 days

#9 posted 07-09-2009 03:54 AM

awesome, simply awesome

View ratchet's profile


1391 posts in 3815 days

#10 posted 07-09-2009 02:49 PM

Nice! I’ll bet you are a good dad and the neighborhood kids love you too.

If you remove the back cross member you can get added pull back distance on the throwing arm. Maybe add another bungeee or 3 and lengthen the throwing arm. If you use a “springy” wood like spruce maybe it would add distance?

Cant wait to see the torsion bar apparatus
Favorited for future upgrade viewing.

View Eric Vossbrink's profile

Eric Vossbrink

70 posts in 3778 days

#11 posted 07-09-2009 03:32 PM

I’m thinking about adding length to the throwing arm. any thoughts?


View Kent Shepherd's profile

Kent Shepherd

2718 posts in 3314 days

#12 posted 07-09-2009 07:15 PM

Oh what fun!!!!! I have to have one. The neighbors will love me.


View Jimthecarver's profile


1124 posts in 3813 days

#13 posted 07-10-2009 02:45 PM

Nice toy…..just dont freeze the balloons first.

-- Can't never could do anything, to try is to advance.

View Eric M. Saperstein's profile

Eric M. Saperstein

766 posts in 3276 days

#14 posted 07-11-2009 03:16 AM

Have you tried fruit yet? Overripe is always best – that way it optimizes blast radius on impact. Now of course the next level of devious to this would be to shove an M-80 into the projectile and attempt to time for air bursts.

Wait – was that in my out loud voice? I mean – hey we’re all adults here make sure you all play safely!

-- Eric M. Saperstein, Master Craftsman

View rustfever's profile


752 posts in 3338 days

#15 posted 07-11-2009 04:43 AM

OH, 5 Y O grandson will just love his G-Dad for making one of these. Sister will probably get upset, as will D I L and son.
I am starting tomorrow morning.

-- Rustfever, Central California

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