Re: Pinewood Derby
Don Izard (IZARD@UBVM.BITNET)
Mon, 8 Mar 1993 10:21:43 EST
Our pack has a four lane electronic track, and has allways run
four car races! But with up to 100 cars in the past, two at
a time was out of the question. Our track uses electric eye
system, and a hand built scoring circuit. First place got 5
points, then 3, 2, 1. This system gave a "tie breaker" point
to cars with first place finishes. The track was also used
for years at district finals. However, a more UPADTED track,
with eight lanes (YES 8 lanes) was recently introduced, with
timing circuits to measure total elapsed times, and is connected
to an APPLE computer. The computer does all the scoring based
on place in each heat, with the tie breaker on total time IF
needed to select a FINAL 8 cars.
The most simple electronic finish I have seen, used a micro switch
on each lane connected to a simple calculator. Lane one was
connected to replace the 1 button, lane two replaces the '2', etc.
the ORDER of finish would then display on the calculator! ie 3124
would me lane 3 was first, and lane 1 was second etc. Total cost
was less than $20.
As far as building a NEW track, there used to be a booklett from
BSA that had the specs. I believe it was 32 feet from start to
finish, with run out room after the finish. The most critical sizes
was the width and height and spacing of the lane guides. They must be
a certain height, and width, and must be sperated by enough space
so the cars do not hit each other. It is also important that the
sections can be but together, and taken apart, and line up well so
there is no BUMPs at the joints. Even a small bump can cause a car
to jump out of its lane.
I hope that gives you something to work with.
Don I, cubs from 78-90
Terry Howerton Sakima Group, Inc. SCOUTER Magazine Kansas City