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Armor concepts Abrams chassis


Old 04-20-2019, 09:30 PM
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Default Armor concepts Abrams chassis

Hey folks,

Not sure if this build will get past getting this past a working chassis, we shall see!

I bought this from a boot sale act without much info, a bit of a punt but I'm very pleased with what I ended up with.

Starting with the hull its self. It's made up of 4mm alloy plates, all joined by multiple small Allen bolts. It's a real beast, weighs a ton and rock solid! Everything is machined, nothing cast and no pot metal (with a notable exception). There's no tension adjuster, I will have to see if this is acceptable, if not use of a henntec shouldn't be too difficult.

Suspension arms are machined, run through bushes into the hull. Suspension comes from internal springs, the design is such the ride height can be adjusted. It looks a little heath Robinson, but it's rock solid with zero slop and seems to work well.

Wheels are machined alloy with rubber tyres. It looks like the intention is to use the plastic hubs from the donor vehicle. There are some really decent bearings (see video of the free wheeling).

Tracks are metal with correct shape rubber pads. I believe these are Kenny kong and seem very well made

Lastly are the gearboxes. They are interesting to say the least. Like the hull they're machined from thick alloy (for the frames) and bolt to the sides of the hull. More heavy duty bearings on each shafts. This is where things get a bit strange. The gearboxes are 4 shaft with the first 3 after the final drive being HL pot metal (properly shimmed) (including the final drive) with the one closest to the motor being machined steel and brass. I can only surmise that the potmetal gears were the only thing avalible back then and were used to keep costs down. On the upside we now steel and black steel gears readily available at low prices. I intend to use steel gears to replace the old pot metal ones. The motors are 540 high torque and have been rewound for even more torque. Will be very interesting to see how all this performs after I upgrade them

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Old 04-22-2019, 05:56 AM
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Awesome project Tom!
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