Threaded rod (aka allthread) is just a very long bolt, if you put a nut on it and turn the rod the nut moves linearly along the rod.So by mounting the nut to the thing that needs moving and turning the rod the "thing" moves.So it's just a matter of mounting things in the right place.It may help if you tell us what needs to be moved.______Rob
Attached is a quick drawing of the general idea.As the rod turns the nut moves up (or down) and moves the panel with it.Note that there are three pivot points (the red dots), obviously the panel, but also the motor and the nut have to pivot as well. This means that both the motor and the nut have to be in a mount of some kind that allow them to pivot. Pretty easy to do.This is essentially a "linear actuator" done on the cheap.This can be mounted several ways and may have to be different depending on the clearances, but this was quick to draw.Another thing to think about is the need to rack in two axis. One of them (the altitude?) only changes over weeks and months an dit's not normally worth the effort to dedicate control gear to that. Either leave the whole apparatus at the optimal angle for you latitude or have a manual system that you adjust every few weeks.Another thing to think about, you will need an RTC or some method of knowing the time/date etc.______Rob
Why would need an RTC?
But how do you attack a metal nut to a piece of wood? I could see me screwing a piece of metal to it and maybe welding it? But then again it has to pivot right
I suppose I could get an electric motor that has a threaded drive shaft off of it
QuoteAlternatively have you considered simply turning off the pumpTurning off the pump unfortunately will allow water to trickle back through the pump.Use a check-valve (you make one for a few cents). Or use a different kind of pump that prevents back- (or forward) flow.The combination of a low-performance pump and an electrically-operated valve is going to be difficult to resolve.
Alternatively have you considered simply turning off the pumpTurning off the pump unfortunately will allow water to trickle back through the pump.
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