Bricksidge wrote:This looks great. Functional LEGO gets a big thumbs up from me.
Is there a problem with the weight and force applied? Are beams threatening to detach or even snap?
Good luck in the contest!
Thanks much! I haven't seen much problem with detachment or snapping. I surrounded the axle the beam sits on with bushings so that hopefully any deformation to the axle is handled by the bushings and not the axle itself. I also sandwiched the beams of the throwing arm with plates so that it'll stay together without catastrophic failure.
Indoor firing range!
My family would hate that! hehe
I like your trebuchet very much. Colors do not matter much for seige weapons. Have you considered putting wheels under the trebuchet to increase the projectile distance?
Hehe.. well, my father gave me a neat idea to redo the counterweight in white and blue to make it more patriotic, but I think I'll leave it be the way it is and deal with that idea some other time.
As for wheels, wheels add a lot of distance to Trebuchets with a fixed weight counterweight, that is, with the counterweight attached physically to the throwing arm. But wheels won't help in my case. Wheels do very little to add any distance to Trebuchets with a swinging weight counterweight, that is, with the counterweight hanging from the end of the throwing arm.
The physics behind this is complex, but is described as simply as possibly as this: With a fixed weight, the falling weight moves forward as well as down, so wheels would absorb this forward motion and push the trebuchet forward adding speed to the shot. Hanging weights transmit almost all of the forward motion into downward motion, so the machine would move very little with wheels attached. However, with the transformation of this forward motion into downward motion, the swinging arm ends up moving faster than a fixed weight, so the shot will fly faster and farther than without the hanging weight.
And now I'm done.