The Water Balloon Launch-o-Matic 1.0.0

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Project by Eric Vossbrink posted 1847 days ago 4570 views 35 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 2193 days

#1 posted 1847 days ago

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 1863 days

#2 posted 1847 days ago

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

-- Dudley Young USN Retired. Sebastian, Fl.

View lew's profile


9953 posts in 2358 days

#3 posted 1847 days ago

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 1998 days

#4 posted 1846 days ago

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


112000 posts in 2179 days

#5 posted 1846 days ago

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

-- Custom furniture

View DaleM's profile


902 posts in 1986 days

#6 posted 1846 days ago

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 2360 days

#7 posted 1846 days ago

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

View Sawdustonmyshoulder's profile


251 posts in 2230 days

#8 posted 1846 days ago

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!!!


-- Makin' Sawdust!!!

View CarlB's profile


40 posts in 1919 days

#9 posted 1846 days ago

awesome, simply awesome

View ratchet's profile


1283 posts in 2389 days

#10 posted 1846 days ago

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 2353 days

#11 posted 1846 days ago

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


View Kent Shepherd's profile

Kent Shepherd

2697 posts in 1889 days

#12 posted 1846 days ago

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

-- She thought I hung the moon--now she just thinks I did it wrong

View Jimthecarver's profile


1121 posts in 2388 days

#13 posted 1845 days ago

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

740 posts in 1850 days

#14 posted 1844 days ago

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


619 posts in 1913 days

#15 posted 1844 days ago

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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