R/C Tank Combat

Support Vehicle #SV008


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It was painted pretty much the same way as my tank (T030) but I left the final coat out so it looks a little different.

After three weeks of solid building itís starting to look like a truck. I should be getting the motor in the mail within the next few days. So if all goes well it should be going before July.

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June 20, 2005: Well all isnít going well. The motor arrived 2 weeks late! But with that out of the way it should start going a little bit smoother now. Iím getting the sprockets and chain in two days, so Iím still hoping it will move before July. All the electronics have been mounted but you canít see them in this shot (their in the box on the back).

The motor is mounted on a plywood bracket which is bolted to the chassis.

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The sprockets are held in place with set screws that go slightly into the shaft so they canít spin freely on the shaft. Those three plugs are to plug the control into. Later I might upgrade to r/c but for now itís tethered.

July 27: I wasnít happy with the performance at 12v so I upgraded to 24v, now Iím real happy. It goes really quick on 24v it might even be too quick. Itís also really hard to drive in a straight line. Because of the increase in speed the tether was replaced with a remote control. You would be jogging/running behind this thing at full speed.

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The steering servo is powered by that 6v battery in the middle. The reason there is two servos on the mount is because the steering servo is used like a gear motor. What I mean is because it was not compatible with the receiver I drilled a hole in the case and soldered two wires directly to the motor. It is controlled with a mag style setup.

Because it uses a mag control it does not return to centre after you let the joystick on the transmitter go, which makes it really hard to control.

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Another interesting feature about this truck is that it has two speeds. I used this diagram (thanks Adam) to build a two speed controller that uses 12v forward and 12v reverse, but it also has 24v forward and 24v reverse for those speedy deliveries or getaways. The version I built only has 12v reverse (I didnít think 24v reverse was worth the extra money and space) and all I did was eliminate the top relay and switch.

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Alright, itís ready to roll (minus batteries). In this pic you can see the kill switch Iíve added so it can be completely immobilized. You can also see the receiver aerial (clear thingy with the wire on it).

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