Hi
Thanks for the replies. Do you know of any simple low cost systems that are already for sale that could do what I need? It would be good if I could just buy the motor and system to release or unwind it when the power is off.
Regards Richard.
Hello
How practical would it be to make a solenoid or a number of solenoids parallel to one another that would pull a weight of about 3kg over a distance of 160mm? Leverage could be used if needed. I am wondering roughly how many amps and what length of copper wire would be needed if 12 volts...