R/C Tank Combat

Tank #T059

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More importantly, the interior space gains 2" which will help when installing the new motors.

With the old EV Warriors, I needed to use a gear reduction unit that took up a lot of space, almost 13" total from front to back, not including the belts for the final reduction and slip clutch.
 

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The new M01 motors from Anvilus Machine Works, I have reduced my drive train length by half!

The motors are mounted to a 3/4" piece of solid oak and will be hinged to allow adjustment of chain tension. These M01 motors have a track record of breaking tank parts so much so I am actually worried about the welds on the motor mount bracket! Thanks to Frank Pittelli's machining skills, I am running a #35 sprocket rather than a #41, which can be hard to find chain and other sprockets for.
 

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The rear axle mount was made asymmetrical so both motors could run "forward" rather than a symmetrical mount where one motor would run forward and one backward.

The suspension is stolen straight from Tyng Tech Labs. I recessed the bolt mount holes slightly so the swing arm will tighten down to the shoulder of the bolt but still allow a small amount to play against bronze bushings to allow for smooth operation. The springs are 1/2" in diameter and sit flush with the outside of the hull.
 

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A view of the jig I used to make each spring slot in the hull, the bit is a 1/2" diameter straight carbide bit.

Another view of the jig.
 

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Using Steve Tyng's table saw circle cutting jig, I cut all of my 4" diameter wheels out of 3/4" MDO plywood. In the center is a 5/8" hole that will accept a bronze bushing w/ a I.D. of 1/2".

Using another router jig, I routed out some material inside to form a "rim". All outside wheels also hade the center hole enlarged to 1 1/8" so a socket can tighten the shoulder bolts.
 

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