binary010101 wrote:It's a Div C event this year?
Also, the last MPC was three years ago, and there are going to be people who've done it before who are sophomores or juniors.
Yes, Mission Possible is back as a C event.
MPC was last an event in the 2005 season. MPB
was an event up to and including the 2007 season, I think, but they are so different that I don't really consider them that related.
Paradox21 wrote:DS, I remember reading about the 2005 shoelace bonus in an archived thread, but could you explain how exactly you did it? Didn't it require that the shoelace have nothing above or below it or something? I had trouble following the description in the wiki thing.
Yeah, there was some lively discussion back then over what exactly would be allowed. I doubt anyone is going to mind me quoting really old rules, so the word of the bonus was:
100 points for tying a 10cm or longer piece of unmodified shoelace into an "overhand knot". The lace must be stretched in a "straight line" at the time the device is started.
Any time "unmodified" appears in a set of rules, there's debate over what constitutes "unmodified". We were not really sure if we could thread anything through the shoelace, tape stuff to it, etc. Also were not sure if we were allowed to tie the knot around something or if the knot had to be completely closed on the shoelace itself. I think there was a clarification issued that said that we could tape/tie stuff to the lace, but I'd have to dig to see if I had a screenshot of it. I don't believe the "can we tie it around something" question was resolved, so I played it safe.
In any case, as to how exactly I did it:
I found two more pictures of that transfer, which will probably help a lot:
The first picture shows it in the ready-state. I circle in green the two places where the blue string is tied to the shoelace. Magenta circled is where the blue string is "tied" loosely in an over-hand knot.
You can see the motor in the center that turns the axle that runs across the whole thing. The spools on the axle (and the two spools-acting-as-pulleys that are vertical) reel in the blue string. As the blue string is reeled in, the loosely tied knot it was in is transferred onto the shoelace, which is now being tied around the piston in the center. The piston then retracts and the knot finishes tightening on itself.
The second picture shows it when it is all done.
Hopefully I did a better job explaining here