Solution for model - Solenoid / Servo to move something back and forth
Solution for model - Solenoid / Servo to move something back and forth
(OP)
Hello everyone I am new to the forum and must admit electrical engineering is not my specialty. In my spare time I am a hobbyist and build all sorts of models which leads me to this post. I have a model that I wish to add motion too. I need a slow moving tiny motor to travel between 30 to 60 degrees and then back to its original position (not a full rotation).
Picture how a seesaw goes up and down, can I make that happen with simple electronics? I thought about using some sort of contact switch at either end to make the motor reverse before making a full rotation but my fear is it will also be too fast, I need it to be slow moving and not jerky. I would love if it was flexible and could handle between 9 and 18volts DC or AC so I can hook it up to a battery or hobby transformer.
I look forward to any advice and thanks in advance for your help
Picture how a seesaw goes up and down, can I make that happen with simple electronics? I thought about using some sort of contact switch at either end to make the motor reverse before making a full rotation but my fear is it will also be too fast, I need it to be slow moving and not jerky. I would love if it was flexible and could handle between 9 and 18volts DC or AC so I can hook it up to a battery or hobby transformer.
I look forward to any advice and thanks in advance for your help





RE: Solution for model - Solenoid / Servo to move something back and forth
Else, use a stepper motor controlled by something like an Arduino.
Many other options of course.
RE: Solution for model - Solenoid / Servo to move something back and forth
RE: Solution for model - Solenoid / Servo to move something back and forth
The signal would be a short voltage pulse, I think nominally 1ms long, that gets longer or shorter over time to cause movement, e.g. a 0.9 ms pulse moves the servo one way, and a 1.1 ms pulse moves it that same amount in the other direction.
Yes, you can do it mechanically, and you can derive the oscillating command with analog electronics, but if your time is worth anything at all, the Arduino will be cheaper.
Mike Halloran
Pembroke Pines, FL, USA
RE: Solution for model - Solenoid / Servo to move something back and forth
https://www.azatrax.com/working-crossing-gates.htm...
RE: Solution for model - Solenoid / Servo to move something back and forth
These motors are easily revers-able and the speed is mostly proportional to the applied voltage. A small motor driving a longer rack gear may solve your problem.
Bill
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"Why not the best?"
Jimmy Carter
RE: Solution for model - Solenoid / Servo to move something back and forth
RE: Solution for model - Solenoid / Servo to move something back and forth