Complete working model, 4 cylinder engine, transmission, and transfer case. Educational Toy

This is one of the most complex models you'll see.  It will test your printers reliability and endurance so make sure you have a well tune machine before printing.  Every part was designed in SolidWorks with 3D printing in mind.  All printing was done on a homemade RepRap original Prusa and homemade Kossel mini.  The engine features working pistons, crankshaft, valves, cam, rockers, etc.  If you have never assembled or seen inside an engine then assembling this with give you a good idea.  The transmission and transfer case are fully functioning too. Shift through the gears and see the rotational output speed change. Learn how a transmission works!!! You can see the engine, transmission, and transfercase working by clicking the links below. https://www.youtube.com/watch?v=mmK_LWOqRp8 https://www.youtube.com/watch?v=SB34I33Bqrg  https://www.youtube.com/watch?v=VxWIW_i72Ec