I'm totally new to electronicS and do not understand a lot and I've read other posts but people seem to be asking different things to me so apologies in advance if this has been covered but I've typed in what I think are correct terms.
I'm doing an art project installation and require a set up so a DC motor is connected to an axel with lightweight things hanging off it. It needs to winds up 1 way and then change direction and winds down another automatically I.e. Without myself being present to flick a switch to change the polarity. I know it can be done using a dpdt switch.
I have a battery compartment with an on/off switch powered by x4 AA batteries (6v) wired to a 6v DC motor that is already geared to run at 30 rpms which is what I want. I have looked into using micro switches and from what I understand? I can't run 1 switch permanently connected even if I e.g. Hang a weight from the axel that when it is lowered into another switch activating it to change the polarity as if this is done it will short circuit.
Is there a cheap way around having it run in e.g. CW and then change to run in CCW after a switch is activated or after a certain amount of time? If possible I'd like to avoid circuit boards as I don't understand or have the parts for this and time is of the essence.
P.s. I'm based in UK so things may not be as easily available.
Thanks for any help in advance.