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06-12-2011, 05:20 PM
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#1 |
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Senior Member
Join Date: Jun 2011
Location: N. Seattle
Posts: 1,176
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Trebuchet: 14 year old's 1 welding project
My son's science project.
He scaled from a picture, did the layout, cutting, grinding, and welding. It also took a lot of fine tuning. I watched, so he didn't lose a finger or eye. Throws a tennis ball just over 50'. |
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06-12-2011, 05:59 PM
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#2 |
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Senior Member
Join Date: Jul 2007
Location: Toms River NJ
Posts: 186
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Re: Trebuchet: 14 year old's 1 welding project
Sweet! I think i was still playing legos at 14....
__________________
moogoob's 10x21 needs some love |
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06-12-2011, 06:16 PM
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#3 |
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Senior Member
Join Date: Feb 2011
Location: New Mexico
Posts: 1,369
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Re: Trebuchet: 14 year old's 1 welding project
Most cool! Tell him he gets two pieces of pie for the great effort.
Craig |
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06-12-2011, 11:25 PM
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#4 |
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Member
Join Date: Apr 2011
Location: Edmonton, Alberta
Posts: 42
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Re: Trebuchet: 14 year old's 1 welding project
while your at it, teach him about safety.. I'd rather be uncomfortable then take a trip to the hospital and wait in the lineups...
radiated light from welding can/will leave a nasty sunburn.. sparks from a chopoff saw can hurt aswell.. maybe even use a face shield overtop the glasses... Looks like fun tho 
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06-13-2011, 11:30 AM
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#5 |
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Senior Member
Join Date: Aug 2010
Location: Lake Stevens, WA
Posts: 184
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Re: Trebuchet: 14 year old's 1 welding project
NICE!
I keep telling my wife (around the time of year when Punkin' Chunkin' is on tv, go figure) that I want to build a trebuchet. In the back of my mind I've always been afraid of how far it will launch the projectile though.
__________________
~~~~~~~~~~~~~~~ Jared |
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06-13-2011, 03:13 PM
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#6 |
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Senior Member
Join Date: Aug 2010
Location: Ohio
Posts: 370
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Re: Trebuchet: 14 year old's 1 welding project
Only 50'?? Needs more weight both in the launcher and ball. Maybe a longer arm, too.
BSA leadership camp, we made catapults that launched water balloons ~100'. 7' launching arm. I don't recall what we used for the spring mechanism (bungies I think). |
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06-13-2011, 03:25 PM
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#7 |
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Senior Member
Join Date: Jun 2011
Location: N. Seattle
Posts: 1,176
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Re: Trebuchet: 14 year old's 1 welding project
The 'Science' was collecting data on weight/distance variables.
For a weekend project and 1st time welding, I was dang proud of him. Also, it had to fit in the wife's car. |
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06-13-2011, 03:26 PM
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#8 |
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Senior Member
Join Date: Apr 2009
Location: Mid-Ohio
Posts: 218
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Re: Trebuchet: 14 year old's 1 welding project
I built a couple of F.A.T's (Floating Arm Trebuchet) with my son & his friends when they were in Cub Scouts. There's a program floating around on the 'net that can help you design 'em. Cool project for your kid to learn welding on.
My last one. Gave it away, now I live on 5 acres & wish I had it back: 
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06-13-2011, 09:35 PM
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#9 | |
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Member
Join Date: Nov 2009
Location: Missouri
Posts: 63
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Re: Trebuchet: 14 year old's 1 welding project
Quote:
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