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Anyone ever build a CATAPULT in their yard?

Mith, I do think box steel would be easier to build with.

I have plans for a larger more powerful catapult that I hope to build this summer. I'm looking at an 8' throwing arm and think a 2" x 3" box steel arm would be just the ticket. Honestly I did not study the plans in great detail for the catapult I posted in the PDF section of the Gallery. I looked them over, they seemed reasonable, but as I have a more complete CAD based set of plans for my own use, I have considered and resolved to use a steel arm. Also I'll be using a steel barstock axle. I'm not sure if I will go so far as to use ball bearings to reduce friction, but I might! I do know that I will make mine on some sort of movable base, possibly a trailer/wagon?
 
The PDF plans are a bit small, uses 1/2x3/4'' wood, too small IMO. Throws tennis balls.
I'm thinking throwing something the size of a football would be more exciting, especially if it was on fire.
I look forward to seeing yours.
 
BIMP.

Anything yet Bob? I keeps scanning the horizon looking for incoming missles. I figure you are going to launch an early morning attack on me when I am blinded by the rising sun. :wall:
 
Good thought, I hadn't taken the sun factor into account. It certainly would keep you on your toes!

No, no progress. The lovely Mrs_B made it very clear that I have HER priorities to consider first. That means the FITNESS TRAIL is going to be done before the Catapult. She also wants a large garden planted.

So it may not be until mid summer before the catapult is heaving little yappy dogs your way! :nosee:
 
What's the problem? Put a hand crank on to cock it (upper body workout) climb on (stair-steps) and aim it at a trampolene (lower body workout). Fitness trail complete and you don't even need to prep a trail! :D
 
B_Skurka said:
Good thought, I hadn't taken the sun factor into account. It certainly would keep you on your toes!

No, no progress. The lovely Mrs_B made it very clear that I have HER priorities to consider first. That means the FITNESS TRAIL is going to be done before the Catapult. She also wants a large garden planted.

So it may not be until mid summer before the catapult is heaving little yappy dogs your way! :nosee:
Click to expand...

Bob ,
No disrespect intended here ,but if the wife wants a fitness trail should she not build it ??? She should be in pretty good shape by the time it is done . Leaves you more time to ponder "lifes meanings" and how BigAl might someday pull your stuck Snow Trac out of the corn field .
 
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