This is rail car number four in what (I hope) will be a series of ten, one published every two weeks until Christmas. This O gauge car (wheels, axle, coupler and bed are all 3D printed plastic) is part of an active train.

Step 1:

Print the base, two sets of wheels and the propeller.

Print files can be found at:

http://www.thingiverse.com/thing:477070

Step 2:

Insert the wheels.

Step 3:

Push a pin into the top hole.

Step 4:

Place the propeller on the pin.

Step 5:

Bend the pin so that the propeller will be facing forward when the car moves.

Get up some speed and the blade will spin!

Introduction: Christmas Rail Car 4

Step 1:

Step 2:

Step 3:

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Step 5: