[Loch-ruadh] Trebuchet project(long)

[HRAFNASDOT at aol.com]

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Here is my to grommets worth:

If you got a look at my model, I used 15lbs. of rocks, threw a missle 30+
yards consistantly and the whole thing was on wheels.  It was ALL pegged and
glued, and shows no stress.  I was going to reinforce the joins with twine
rap (rope binding) which would further the period look and increase joint
strength.  Weights that were considered were: sand bags (dampened to increase
weight), water barrels, or more rocks.

The model is valid as period (my only change was on the metal bar axles,
which can easily be changed to wood dowel) and is very accurate.  I simply
did not install a trigger device because it was not required (but I designed
it with one in mind).

The wheels are important in releiving stress to the frame, increases thrust
and makes it a simple matter to adjust for aim (simply move it) AND is
period.  Check out the Discover seige engine special.  If you build a single
frame instead of an assemblage, you prevent the wear and tear of take down
and set up and get a stronger frame.  Think wagon/trailer.

Just my two cents from the modeling point of view.

Asa