There is significant less tension
needed now. Judging by the travel of the idler shaft when tensioning I now
use 2/3 of the tension needed before the modification.
In my opinion you can use any kind
of plastic you like, I had some PE lying around so I used this. Just look for a
shop that supplies plastic sheet material and you'll be able to cut the cleats
to size using a table saw. Some shops over here do cut for customers for a small
----- Original Message -----
Sent: Saturday, October 02, 2004 1:40
Subject: Re: Update website
Will it run with less tension ? do you
Where could I buy the polyethene ? I am in the UK.
At 12:15 02/10/2004, you wrote:
> You've built the first cog driven TTS! Did you use Delrin for
the cleats also?
The cleats are made of PE (polyethene or -ethylene, don't know the
It is the same plastic as used for the inner treads,
in fact, I made them out of some spare inner treads I had lying around. They
were cut to the right size using the table saw.
Good engineers prefer to
use two different materials for cog drive systems. They tend to choose
softer material for the part that is easy and cheap to repair when worn (so
this material is kind of 'sacrificed') and the more durable material for the
other drive component.
I just couln't make a choice, so chose to be able
to change the cleats on the wheel and the track treads when they are all worn. Been thinking of
steel cleats, but these would damage the tracks too much and wooden cleats,
for instance, would be worn out too soon. Then I would need a cleat supply
vehicle in battle.
there pics of the cleated drive wheel ??? If so then I guess my old eyes
There are, surf to www.commandojurre.nl, click 'Update
speelgoedtank' in the left border and you will be directed to the update