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Toy trebuchet

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Project by BeachedBones posted 2023 days ago 3365 views 8 times favorited 10 comments Add to Favorites Watch

I built this after seeing a program on the engineering of various Trebuchets. Intrigued I build this toy with what i found to be the best features of different designs. The whole rig is left on wheels to make rough aiming easier, also so it could be towed to the battlefront as opposed to being built on site as was common. A neat little benefit also is that the wheels are NOT chocked, and allowed to roll back and forth as the weight of the counterweight falls. The physics is a little tricky, but basically the weight can move in a strait line down, as opposed to an arc, making it more efficient and removing some of the shock on the frame by firing the siege engine. A basket style counter weight makes adjustments to the weight, and therefore ballistic distance. Also an empty basket is easier to ship and can be filled with spare ammo, gravel, dirt or whatever is lying around. The sling and launch arm are long to amplify the speed that the projectile is launched. The projectile sits in a guide track that pivots on one end to allow fine tuning of the aim by slightly altering the arc along the sling ropes. One side of the sling rope is fixed to the launch arm, the other end attached a little lower on a hook that is angled to release at the top of the arc. This toy is about 2 feet long and can easily launch a marble 40+ feet using other marbles as counterweight. Made of a scrap of 2/4 and some plywood for the basket.

Time to wage war on a Lincoln Log village!! (not to be used near windows :P)

-- You know.... I think that old wood needs to be furniture.





10 comments so far

View DannyBoy's profile

DannyBoy

521 posts in 2489 days


#1 posted 2023 days ago

Nice scale model. When do you build the full size one?

-- He said wood...http://hickbyassociation.blogspot.com/

View Pie's profile

Pie

187 posts in 2029 days


#2 posted 2023 days ago

WOW! I was wanting to build one of those along with a catapult. Do you have plans for this trebuchet or did you just wing it? VERY NICE!!

-- Pie

View Dan Lyke's profile

Dan Lyke

1470 posts in 2749 days


#3 posted 2023 days ago

Awesome! I’ve played with big ones, but I think the nephews need one in living room size.

Don’t know if their mom will ever speak to me again, though.

-- Dan Lyke, Petaluma California, http://www.flutterby.net/User:DanLyke

View BeachedBones's profile

BeachedBones

201 posts in 2026 days


#4 posted 2023 days ago

No plans, it’s pretty strait foreward, it went together fast. Just one of those little pine, glue and brad nails quick projects. Just drill both sides of the axel and pivit point holes at the same time to make sure they match and there is no binding. I find catapults more trouble than they’re worth cus it’s hard to find something with the right elasticity for a torsion catapult, and I don’t find string ones authentic. I would like to try and make a Balista model but I havn’t worked out in my head how to do it.

-- You know.... I think that old wood needs to be furniture.

View SteveKorz's profile

SteveKorz

2131 posts in 2338 days


#5 posted 2023 days ago

Very cool! I have a buddy that has always wanted to build one of these big enough to throw VW bugs… I keep waiting, someday I think he’s actually going to do it.

With another one of these, your kids may very well organize a riot when they have to eat vegetables.

-- As iron sharpens iron, so one man sharpens another. (Proverbs 27:17) †

View mrtrim's profile

mrtrim

1696 posts in 2504 days


#6 posted 2022 days ago

awsome , im building one today ! i can launch bon-bons to the ole lady thatll keep her on her side of the room and away from my couch and my remote ! lol

View BeachedBones's profile

BeachedBones

201 posts in 2026 days


#7 posted 2022 days ago

Hahaha Bon-bons, I hadn’t though of that one… great idea there. I was thinking of maybe making a larger one to throw tennis balls for the dogs. No plans on a version to launch vehicles, or to toss the trash to the curb.

-- You know.... I think that old wood needs to be furniture.

View Dave's profile

Dave

74 posts in 2888 days


#8 posted 1866 days ago

super nice looking for no plans i was about to ask you about them till i saw one of the comments were you said there are no plans.

p.s. nice job

-- ))penmaker((

View a1Jim's profile

a1Jim

112008 posts in 2201 days


#9 posted 1866 days ago

cool I want a full size one

-- http://artisticwoodstudio.com Custom furniture

View retjohn's profile

retjohn

4 posts in 1728 days


#10 posted 1716 days ago

Very nice and without plans!!

For those who want plans, there are quite a few on line, just google ‘trebuchet plans’.

-- John Neel, Atlanta

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