R/C Tank Combat

Tank #T040

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A completed drive wheel assembled and mounted on the tank. The drive wheel is bolted via the three bolts directly to the final stage transmission chain sprocket. The chain sprocket/drivewheel assembly rotate on a fixed 1/2" hardened steel axle.

A detail shot of a suspension spring.
 

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The Tyng MK1 suspension design provides a good 1 1/2" of suspension travel.

Construction of the tracks begins with cutting of the track guides out of maple.
 

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The guide pieces are nailed and glued to plywood to form blanks that the individual inner track pieces will be cut from. The plywood is a high quality 5 ply Baltic birch purchased at my local hobby shop. For this model one 2x4 sheet was sufficient.

This jig is used to allow safe cutting of the inner track pieces. The saw blade is set to 16.3 degrees.
 

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The jig is also used to cut the opposite side of the track pieces.

To mate correctly with the drive sprocket the inside corners of the inner track pieces had to have a small radius. This was accomplished by grinding the profile into a utility knife blade and scraping each piece individually.
 

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A drive sprocket was used as an assembly jig to ensure correct spacing of the track pieces. The inner and outer track pieces are glued and through nailed to the belting material. I made sure to use nails that would not penetrate all the way through and damage the drive sprocket.

A partially completed track is fitted to the vehicle to measure for correct length.
 

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