Lego R C Car
This is the first Lego Radio Control model I have yet to attempt,
a rear-wheel-drive car with no suspension systems whatsoever.
I am content to finally rip it apart now that I have placed some
images here for people to view.
I have also drawn this model using
LDraw / Ledit, with the
instructions here.
The first two images are top views:
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in these images you can see how the motors are arranged as planned by
the 9:1 differential configuration. Just in front of this is the
Lego 9 Volt Power Pack, which holds 6 AA batteries, which power the
Lego 9 Volt Motors. On the top of this battery pack is a throttle
servo, which serves to simply push the two buttons of the Lego 9
Volt Power Pack Box. Just it front of this is the steering assembly
(without suspension) which is controlled by the (channel 2) steering
servo, the fully converted futaba servo with a Lego axle protruding.
This is connected to numerous 16 tooth Lego gears, which control the rack-and-pinion steering.
The receiver is also on top of the gear train, there must be a place for it in every model.
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These images show the underside of the car, revealing more detail of the
9:1 differential in action.
The following profile shows the placement of the battery holder in the rear
for added traction, along with the placement of the throttle servo directly
straddling the Lego 9 Volt Power Pack, to allow for control of the Lego 9
Volt Motors. Wiring is also shown in this image.
Here is a close-up of the actual 9:1 gear reduction as used in the car:
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Send
E-Mail to the Greek!!
( clampe@mednet.swmed.edu )
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Copyright Information
by Craig A. Lampe
revised: March 15, 1997
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