A working 1/8 scale TJ rock crawler.
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updated May 20, 2024

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I was inspired by the Thumper CJ, but my Jeep is a yellow TJ so that's what I decided to build.  Once I started researching 1/10 scale model RC truck parts I realized I could purchase a rolling chassis complete with axles, transfer case, transmission, etc.  You can even purchase realistic looking bumpers and a working winch.  The Thumper prints all these parts and only purchases gears, shocks and a motor.  

There is a detailed set of build instructions below along with a more detailed explanation of the model.

An important how to: Print the hinges with the hole that accepts the hinge screw pointing up.  If you print the hinge laying flat the hinge will split in half when you insert the screw.  

Rev 1: Added CoolerExtended and FakeFloorExtended to make an optional larger battery compartment. 

Rev 2: Added half doors.

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