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Step 6Propulsion gondola with vectored thrust
Different possibilities exist, but I prefer to use “vectored trust” for up/down-forward/backwards and a separate tail rotor for left/right. I will treat the latter in the next step.
First you need to take two very small motors. I took them from micro servos, as I needed two servo-electronics for the next step anyway.
One servo is kept complete. The larger gear is glued (centered) on a servo horn. The small gear is mounted close to the middle of the 20 cm carbon rod. With some fitting tube as bearing the rod is glued to the servo, aligned in such a way the gears match. The micro switch is glued on the servo, in such a way the servohorn can work it. The motors are glued to the rod’s end. The motors are connected in parallel to power connector matching the receiver (everything is run from the same battery, connected to the receiver).
The switch is used in such a way that in one position of the servo the motors are switch off and in all other positions they are switched on. This way you use the servo to choose to choose the direction of trust. One orientation, at neutral, is “sacrificed” for the “off” position. I usually sacrifice the position between down and back. The inertia allows to go from the off position to whatever position you want without affect of the intermediate positions.
First you need to take two very small motors. I took them from micro servos, as I needed two servo-electronics for the next step anyway.
One servo is kept complete. The larger gear is glued (centered) on a servo horn. The small gear is mounted close to the middle of the 20 cm carbon rod. With some fitting tube as bearing the rod is glued to the servo, aligned in such a way the gears match. The micro switch is glued on the servo, in such a way the servohorn can work it. The motors are glued to the rod’s end. The motors are connected in parallel to power connector matching the receiver (everything is run from the same battery, connected to the receiver).
The switch is used in such a way that in one position of the servo the motors are switch off and in all other positions they are switched on. This way you use the servo to choose to choose the direction of trust. One orientation, at neutral, is “sacrificed” for the “off” position. I usually sacrifice the position between down and back. The inertia allows to go from the off position to whatever position you want without affect of the intermediate positions.
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