I need some help designing a circuit for a timelapse slider. Please bear in mind i am a beginner with electronics, so have mercy!
The motor will be pulling a trolley (very slowly) along a set of rails while a camera on the trolley takes pictures at certain intervals. The effect is used so that in the footage the camera will move slowly while time is moving very quickly (bad explanation). Some examples of this can be seen in this video - https://www.youtube.com/watch?v=ZwzY1o_hB5Y
The DC motor i have is rated at 12V 0.06A 4RPM. Its a high torque geared motor.
Currently i use the motor with a AA (1.5V) battery which moves the trolley 0.5 metres every hour. The trolley is attached to the motor by a timing belt and pulleys (which can be seen in the image below). This is ok but i want the option to increase the speed as well as other features.
-option to vary speed (potentiometer?)
-removable battery - 9V preferred
-proximity switches - one on each side of the slider to stop the trolley from being pulled too far
-Ideally i would like the components to fit onto a space the size of the black piece of wood shown in the last photo here.(roughly 170x90mm)
-possibly a battery life display (that could be turned off to conserve battery)
Some Key questions
Is it possible to build my own circuit for under £15 ?
How long would a 9V battery (Duracell) last in this setup?
Will powering the motor with a lower voltage than its rated for break the motor?
Any answers (or questions) are welcome. Thank you for reading all the way down here!
Below are some pictures of my current setup