I guess my arm is too thick, or too short, or something then. It runs on
roller bearings, so friction has practically nothing to do with it. A
baseball weighs, what, about 5 oz. I think. My counterweight is about 65
pounds. So I've got about 208 times the projectile for weight. It ought
to throw the thing further than a piddly 100' it seems like.
Too much energy directed into up, and not enough forward maybe. Could be.
I did have a little whoopsie. I guess the statute of limitiations is up.
We were throwing rotten apples at the gigantic concrete wall near my house.
Splat, splat, splat, whooooosh. Oops. Threw one right over that 20' wall
and onto the highway on the other side. <whistle, look at feet, run like
hell> If anybody asks, kids, I was just over here yelling at you for
throwing apples at the wall. I had nothing to do with this. :)
No glass, no horn, no crunch, no harm, no foul, but we put the treb away and
that was the last time we played with it. There's no longer any place to
shoot the stupid thing since all that stuff went up, and I sure don't want
to get somebody killed. <sigh>
Michael McIntyre ---- Silvan < email@example.com>
Linux fanatic, and certified Geek; registered Linux user #243621
On Wed, 15 Dec 2004 03:48:15 -0500, Silvan
more weight is usually better, but the distance will stop at a certain
weight no matter how much you add..
arm size, length and balance are critical, as I recall, haven't built
one in a few years and mine were LOW tech for sale purposes... no
screws, glue, metal, etc... all wood except for the bit of string &
I seem recall that the best balance point is having the pivot "20% to
25%" behind the front of nose of the beam.. I think we used to figure
that the distance from the pivot to the hook was 4 times the distance
from pivot to nose, or something like that..
Start here: http://www.ripcord.ws /
Read everything and follow the links. More about trebuchets than you
ever thought there was to know.
On 11 Dec 2004 22:47:07 -0800, zendo_joystick_ankh firstname.lastname@example.org
(Bruno Beam) wrote:
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