Before summer vaction ended three of the boys in the neighborhood wanted to make and use a trebuchet. I ripped the parts, they did the cross cuts and angles on the SCMS - using stops I set. They did the glueing and stapling, the drilling and figure out the hinged side bracing method.
Knowing it'd probably end up being stored in my shop, I came up with the idea of making it modules that could be assembled when needed and stored in a 48" x 34" x 12" space. Also makes it easier to put in a vehicle and take to a park to play with. Not surprising that it can draw a crowd.
Hurls tennis balls nicely but we haven't worked out the sling lengths and weights for water balloons. All attempts so far have thrown the water balloon almost straight up - and it's a crap shoot as to which way to run to get out of the way.
(all one line so watch the line wrap)
charlie b