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World Championship Chunk 2008: Mista Ballista
We left Massachusetts at 1am, and drove until we were on the field at 11am the same day.
Mr. B and Hatra Ballista's spring frame arrive on the field. Unfortunately, we hadn't had time to put the rope into the bundles before driving down to Delaware. Instead, the rope was stored in two giant trash barrels in a way that was specially configured to simplify winding the bundles.
The team immediately set to work. Jeff drilled new holes in the scutula that lined up with the holes in the new modiolii. Dave, and friend Karl start getting to work with the new trunnion mounts that are needed for the new winding system.
Also installed were rope retention shims. These wood shims will buffer the rope so that it doesn't deflect over the edge of the modiolus hole.
As the sun begins to set, the new trunnion mounts were completed. The donuts floating in space were required mounting locations for the hydraulic ram which we will use to tighten Mr. B's rope bundles.
On Friday the entire day was spent winding the rope into the rope bundles, followed by twisting the rope up with the new arms installed.
One of the things I (Eric) wanted to try was to increase the "At Rest" angle of the arm. Doing this by adding shims to the inner stanchion would, in theory, cause the arm to not strike the outer stanchion. This worked at the low torsion from Saturday, but when we added even more twist into the ropes on Sunday, our shims didn't stand a chance.
The crushing of the wood in this picture is just from the arm pressing against the wood while adding more torsion. The machine had not yet been test fired.
Unfortunately, we pied our last shot, but a large chunk flew a couple hundred feet past the spotters who were all waiting for our shot 600ft away. Clearly, the farthest toss of our machine yet.
Worse than that, our new arms cracked to the point where we could no longer use them. For both arms, they worked great during pullback, but failed on impact.
Contact: Team Tormentum|
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Twas' brillig, and the slithy toves did gyre and gimble in the wabe...
|Last Modified: 05/10/09|