[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Paul -
The pads I used are 3/4" thick by 3-5/8" wide by 2-3/4" long, spaced 3"
on center. The "teeth" are 1-5/8" square and 3/4" tall, not tapered at
all. (1/5th scale, remember, and it's not TTS, but this info might help
anyway.) Once in a while a road wheel will ride up on the "tooth", but
it's not a problem - it either rides all the way over, or falls off the
edge and makes a big noise.
What IS a problem is when I'm trying to climb a big obstruction at an
angle - the whole track will shift sideways so ALL the road wheels ride on
the teeth, and I'm sure that if I keep it up it will either break the track
or throw it completely. I believe taller teeth would solve the problem,
but then I'd probably have to taper them to prevent ride-ups.
I read somewhere that the "teeth" are actually called "bells", but I can't
remember where I read that! Has anyone else ever heard these things called
bells?
The distance between the track and the hull could be determined by a
front-view drawing.
Bill
>Hi all
>
>I am drawing up the tracks for my Cromwell and wondered if some kind soul
>could give me a idea what the following dimensions need to be ?
>Also for the tracks to be scale they would only be 2.25 inches wide , has
>anyone else built a TTS with such narrow tracks ? at this width I would
>have thought I could not get enough grip for the friction drive ?
>regards paul
>
--
"Of all animals, he alone attains to the Contemplative Life." -- Andrew
Lang, "On Observing His Cats"