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Thanks Dee ... are you building a
1:6 paintball tank or a kiddie ride tank?
Some data: the length of the hull
is 1.6 meters, the width is 0.77 meters so it will fit through interior doors
and the height of the hull is (ground clearance of 0.12 meters not included) is
about 0.4 meters.
I chose to saw easy angles,
that is 30 degrees for the sides, 45 degrees for the front and back. This means
that by using 15 mm thick plywood, you would have to saw each piece 22.5 degrees
to make a 45 degree angle.
The angle of the front upper deck
of the tank is constructed by placing one end of a long ruler on
top of the front plate, the other end of the ruler on top of the first support
plate that separates the batteries from the driver. Drawing a line along this
ruler gave the exact angle for the sides to saw. I then took measurements on the
hull to determine the measurements of the metal plate. The 'wings' on the metal
plate are bent 60 degrees, again an easy angle.
I hope you can use this, if you
need more info just ask.
Regards,
Marc
----- Original Message -----
Sent: Sunday, August 08, 2004 12:49
AM
Subject: Re: Testrun succesfull!
OUTSTANDING Marc, I was very impressed with your tank. I have so
many questions.
I am having problems with designing a hull. What are the
measurments, angles and such of you hull. What ever you do to help
would be great. Dee
O yeah, I just couldn't wait
...
After the hard work I did
yesterday, it was only a few hours work to get the monster started and ready
for the first test run.
Video footage (1,25 MB) is
posted at www.commandojurre.nl,
just follow the hyperlink in the 'Hull' section of the English
language page.
The gas spring tensioning
mechanism I brought up yesterday proved to be absolutely worthless! I
mounted 2 200 N (=20 kilos) gas springs but that is not strong enough by
far. The tracks need very firm tensioning because the drive wheels do loose
their grip on the tracks, especially in neutral turns.
But the testrun was an absolute
succes (can't stop smiling), I could even sit on the tank myself and it
drives superb! These are some very strong motors I used. In the next days I
will replace the gas spring with heavy rods of some sort, I only hope the
plastic drive wheels can handle the tension. But I think they
will.
A bit of a down side is that I
would have earned my official R/C tank combat designation at this
point if it was a 1:6 scale paintball tank ... but I will take this as
a man.
I must say that I could not
have done this in the way I did without the info from the R/C-combat
site, I learned a lot from other peoples trial and error
stories.
Must go now, have an important
meeting with the Dutch Army Vehicle Purchasing Department to discuss the
production of a series of tanks.
Regards,
Marc
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