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Old Jan 28, 2011, 03:19 PM
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1/72 Scale 2.4Ghz Full Proportional Throttle and Steering Control Conversion

Here is my latest project, converting a small rc car to 2.4Ghz full proportional control and powered by a 1S Lipo;







View of the electronics including the receiver, and two servo boards acting as proportional throttle control and actuator driver;







As compared to my previous 2.4Ghz conversion;

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Old Jan 28, 2011, 03:21 PM
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Videos:

Proportional control in action;

1/72 Scale 2.4Ghz Full Proportional Steering and Throttle Conversion (1 min 21 sec)



Table top run;

1/72 Scale 2.4Ghz Full Proportional Steering and Throttle Conversion - Table top run (1 min 12 sec)



Floor run;

1/72 Scale 2.4Ghz Full Proportional Steering and Throttle Conversion - Floor run (1 min 35 sec)
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Old Jan 30, 2011, 08:00 AM
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Here she is again with LED lights for the headlight and tail lights;











And a couple of videos;


LED Lights - 1/72 Scale 2.4Ghz Full Proportional Steering and Throttle Conversion (1 min 41 sec)



LED Lights - 1/72 Scale 2.4Ghz Full Proportional Steering and Throttle Conversion 2 (4 min 23 sec)
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Old Feb 04, 2011, 12:02 PM
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How?

Details please ! How do you modify the steering ? What about the speed cntrl ? This is too cool !
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Old Feb 15, 2011, 09:37 PM
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I used the board of a servo for speed control and steering

Here is one more video;

1/72 Scale 2.4Ghz Fully Proportional throttle and steering - Table top Run (1 min 19 sec)
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Old Feb 16, 2011, 10:18 PM
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Nice job. I didn't think they make electronic components this small. Did you replace the tiny magnet actuator with a servo for the steering?
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Old Mar 03, 2011, 06:25 PM
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its a spring return actuator. Proportionality is achieved by varying the current vs the spring torsion.
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Old Mar 22, 2011, 11:35 PM
The effect is sadly temporary
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EQMOD, this is awesome! I just converted a 1/32 buggy the exact same way. I'll post some pics.

I have a question. Do you have trouble with the motor board no centering? Mine keeps drifting out of trim so it's always going a little forward or back.

I read about a mod to increase servo deadband, but I haven't done it yet.

How's it working for you?

Thanks for posting your work,
Dan
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Old Mar 29, 2011, 12:05 AM
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Quote:
Originally Posted by Hippo View Post
EQMOD, this is awesome! I just converted a 1/32 buggy the exact same way. I'll post some pics.

I have a question. Do you have trouble with the motor board no centering? Mine keeps drifting out of trim so it's always going a little forward or back.

I read about a mod to increase servo deadband, but I haven't done it yet.

How's it working for you?

Thanks for posting your work,
Dan
Centering issues depend on the quality of the transmitter and receiver. What setup are you using ? Deadband basically is playing around (and looking for the sweet spot) on the EPA settings of the transmitter.
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Old Apr 24, 2011, 11:07 PM
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what receiver is in that? it looks like a very small rc car radio...
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