ORIGINALDUSTCOVER - HOMEMADE EXPERIMENTS



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DYNAMIC BALANCE - SEGWAY HOMEMADEE





ste is a vehicle dynamically balanced that is quite simple to do:
Only that is the something difficult to obtain is the set of gears for the motor. The idea is to lower rpm of the motor. A motor of walkman without gears could be used, but this I have not tried it. A wheel is due to use a little greater than the motor to maximize torque. A single wheel connected to the motor and another one without motor is used that serves as support. This wheel gives balance us to the flanks.
It will work satisfactorily without the candle, has been used inlcuso a wood of 1 meter without problems, but the candle seems that it increases the time factor so that the circuit by 5 times reacts. If one is going away to write exotic control programs this is necessary to take into account.


The artificial horizon is a white fine cardboard piece and another black stuck on this one and rests on the ground as a skate, can pivot around the axis with little friction. Small adjustments can be rotated doing this fine cardboard.

The photoelectric eye is a LED of high brightness and a LDR directed to the shining point created by the LED and that detects the change of the target to the black. This causes that the motor backwards turns or with yuda of a relay or a intergado circuit. The interruption point must be most precise possible, for this an op amp or the port of printer of a PC is due to use CI. the advantage to use ua computer is that it is possible to be programmed in delays of time very precise to quantify the effect of the changes in any design and to go to more advanced equipment. It is possible to be put the batteries in the vehicle, the weight prevents that the wheels slide.



USING AN INTEGRATED L298N

It does not cost much, is a little more difficult to use than a relay, but it works better in this application. This intergado has two pairs of exits which I connected in parallel. Then the current is controlled by pins 1 and 15 which are connected directly to the negative, to lower one or anyone of the entrances it is placed a resistor of about 5 ohms between these pins and the negative, whichever major the less current resistance we will have when coming out.

balance.jpg circuit (308486 bytes)


Down we have a circuit with operational that works well with four batteries AA.



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