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Adjustable Catapult -leathal weapon for grandson

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Project by doubleDD posted 11-24-2018 07:53 PM 2367 views 14 times favorited 45 comments Add to Favorites Watch

With my grandson nearing the age of 4 where he can get destructive, I figured it was time to build him a catapult to shoot things. My plan was to have a ping pong ball shoot at different distances. This way he can grow with it and enjoy using it as he gets older.
My prototype worked well so I designed the good one from that and kept adding on. I had to make it heavier so it wouldn’t bounce around so much. I would of liked a more traditional one but it wasn’t holding up. The upright portion of this is solid wood with adjustable holes to change the force and distance the ball will fly. There are also 3 wood dowel pins on the bottom (pic 5 ) where you can stretch the rubber band for more power. I added a firing handle so he can have it ready to fire at any time. A small rubber pad will cushion the sound when fired so its not too annoying when fired. Made a storage area to hold more balls and best of all the wheels make it easy for him to move around. Another add on was the extra rubber band storage on the bottom so he will be ready for emergency breakage. My wife says it looks like a truck and shes right. I think he’ll like it even more. It will shoot the ping pong ball anywhere from 8 to 33 feet depending on how it is adjusted or what type of rubber band on it.
Except for the 4 wheels this was all made from scraps that he plays with when visiting me in the shop.

My wife says I’ll be in trouble with my daughter in law but I think my son and a lot of other adults will be playing with it at Christmas. It’s killing me to keep this one a secret. Even my wife was playing with it for awhile. LOL.
Thanks for looking. I’ll answer any questions if you have them.

View on YouTube

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.





45 comments so far

View torus's profile

torus

200 posts in 619 days


#1 posted 11-24-2018 08:34 PM

I want to play with it too!

-- "It's getting better..." - put this on my RIP stone!

View  woodshaver Tony C   's profile

woodshaver Tony C

6237 posts in 3559 days


#2 posted 11-24-2018 09:36 PM

Really Cool toy! This is a brilliant well thought out lethal weapon for a grandchild. Just hope the lethal weapon part is metaphor LOL! I like that it’s adjustable! Nice work as always Dave!

-- St Augustine FL, Experience is the sum of our mistakes!

View John's profile

John

1310 posts in 1476 days


#3 posted 11-24-2018 09:41 PM

Wow, a lot of thought and effort went into this Dave! Real nice pieces of wood in it. I’ll bet he is very interested in this period of history when he gets to it in school.

-- John, Sunshine Coast, BC, Canada.

View doubleDD's profile

doubleDD

7906 posts in 2249 days


#4 posted 11-24-2018 10:06 PM

Thanks torus. I can’t wait till Christmas. I almost feel like it’ mine.

Thanks Tony. I feel with the adjustability he will enjoy it longer. Just hope he doesn’t find out how to do it right away. LOL.

Thanks John. Never thought of it that way but if it helps that’s great. Asfar as a lot of thought, it came to me as I went along.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View Jim Jakosh's profile

Jim Jakosh

21757 posts in 3311 days


#5 posted 11-24-2018 10:10 PM

Good one, Dave. He will like that. And, if you measure and record the distance, it will be science!! I wish I had a grand son to make all that neat stuff for!!

cheers, my friend, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View 67flh's profile

67flh

88 posts in 1487 days


#6 posted 11-24-2018 11:49 PM

Looks like fun and I have making something very similar to this on my things to do list, very nice!

-- Brad

View Eric's profile

Eric

70 posts in 79 days


#7 posted 11-25-2018 12:04 AM

Cool piece, and I bet he will have fun with it for years to come.

Maybe something for grandson, once hecomes along.

Keep up with the good toys.

-- Eric, Upstate South Carolina

View crowie's profile

crowie

2747 posts in 2157 days


#8 posted 11-25-2018 12:08 AM

Give that little bloke a couple of years and he’ll add a heaps stronger rubber band to catapult golf balls…..

-- Lifes good, Enjoy each new day...... Cheers from "On Top DownUnder" Crowie

View KimAccurso's profile

KimAccurso

385 posts in 346 days


#9 posted 11-25-2018 12:25 AM

Looks like a blast!!! Not that I want my grandson to grow any quicker than he already is but I look forward to the “ARGH!”’s I’ll get from my step-daughter with all the fun and ornery toys I want to build for him :)

-- Kim - imperfection is the pursuit of perfection

View doubleDD's profile

doubleDD

7906 posts in 2249 days


#10 posted 11-25-2018 12:56 AM

Thanks Jim. Recording the distance, that sounds like a good idea. May be the adults can turn it into a drinking game. LOL.
Sounds good 67flh. Hope you post it when you build it.

Thanks Eric. Building toys has always been a lot of fun. Then you get to share them with someone.

HAHAHA CROWIE. You were thinking like me. I had a 7’’ x 5/8’’ rubber band on it but that was too aggressive. I cracked the wood so I had to tone it down a little. Maybe I can make that for myself and shoot at the neighbors.

Thanks Kim. We may have something in common there. Watching their parents eyes roll over their head is just as cool as watching the kids playing with some toys.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View Dave Polaschek's profile

Dave Polaschek

2872 posts in 788 days


#11 posted 11-25-2018 12:59 AM

Excellent toy, Dave! Need to make a spare for yourself, maybe?

-- Dave - Minneapolis

View Dave Polaschek's profile

Dave Polaschek

2872 posts in 788 days


#12 posted 11-25-2018 01:00 AM

Hmm. Now I wonder what kind of distance you could get with a bandsaw tire instead of a rubber band…

-- Dave - Minneapolis

View diverlloyd's profile

diverlloyd

3235 posts in 2063 days


#13 posted 11-25-2018 02:19 AM

That is a very nice toy. Will a trebuchet be next.

View torus's profile

torus

200 posts in 619 days


#14 posted 11-25-2018 02:40 AM



Hmm. Now I wonder what kind of distance you could get with a bandsaw tire instead of a rubber band…

- Dave Polaschek

Dave, just do it! ;)

-- "It's getting better..." - put this on my RIP stone!

View doubleDD's profile

doubleDD

7906 posts in 2249 days


#15 posted 11-25-2018 03:15 AM

Hey Dave, you may have something there. If you could find something that big with a good stretch, it would be lethal. Now you have me thinking of a summer project for me.

Thanks diverlloyd. My first thoughts were of a trench bucket. But I thought this would be safer. But then again, one for myself.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

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