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From: "Marc en Wendy" <marcmethorst-at-zonnet.nl>
Subject: Re: Testrun succesfull!
Date: Sun, 8 Aug 2004 10:04:03 +0200
Reply-To: tanks-at-rctankcombat.com

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.
----- 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

Marc en Wendy <marcmethorst-at-zonnet.nl> wrote:
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.

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