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8286 3-in-1 Car
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Click the image to download the LDraw file of this model. Model by Benjamin Wendl |
Features |
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Steering
The front wheels can be steered using a "hand of god"wheel at the top
of the vehicle. The wheel drives through a set of bevel
gears. A pair of 8 tooth pinions then drive the gear rack.The steering mechanism itself uses control arms a rack gear to form a 4-bar linkage as shown. |
Click for an animation of the steering in motion. |
Hatch
The hatch opens using a simple lever at its upper pivot. It uses a
fascinating 4-barlinkage of unequal lengths, so the shape of the canopy
changes shape as it opens as can be seen in the animation. The
steering wheel can also pivot up to make it easier to remove the figures. |
Click for an animation of the hatch in motion. |
Modules
This set employs a couple of removable modules which can be
transferred between models. In the first image, you can see the
tiles and pins at the back of the vehicle which comprise a standard
mounting point. The winch and crane arm shown in the second image
are among the modules as is the camera on the helicopter. The
trailer also has a mounting point though it is empty by default.
Any module can be placed on any mounting point, although some of them
obviously wouldn't work such as the huge crane on the side of the helicopter.In this image you can also see the propellers. They are purely manual and not connected to any gear system. |
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Winch
The simple winch is mounted to the front of the car by default.
Rather than a worm gear, it uses a ratchet and pawl system energized by
a rubber band to hold position. Rotation is via a direct crank of
the spool. |
Click for an animation of the winch in motion. |
Crane
The crane is mounted to the rear of the vehicle by default, but
can also be put on the front or on the trailer. A simple knob
wheel turns a worm gear which lift the arm directly attached to a 24
tooth gear. A metal hook hangs from the end of the arm. The
purpose of such a crane is not immediately obvious, but I choose to
think it is for rescue or salvage operations. |
Click for an animation of the crane in motion. |
Heli
The very simple helicopter has a camera mounted to one side and on
open modular mounting point on the other. The single seat chopper
has a 3 blade main and tail rotor which are driven simultaneously by a
crank on the side. They are geared up 3:1 so turn quite quickly. |
Click for an animation of the rotors in motion. |
Trailer
The trailer is very simple indeed but does feature pendular
suspension on the tandem rear axles. It also has an unused modular
mounting point. |
Click for an animation of the trailer suspension in motion. |
Dudes
The two figures which come with this set are unique and exist
nowhere else. They are identical except for different colored
helmets and have an Orca logo on their chests. |
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Wheels and Tires
This set uses 4 of the large 49.6x28 VR rubber tires and wheels for the
car, 4 of the small 30.4x14 VR tires for the trailer, and some old
standard wheels for the heli. |
Other Views |
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Top View |
Side view |
Front View |
Back View |
Computer Render |