Rotate an arm or lever

I know you will think me a dummy, I have lloked at many rotate threads but cannot find anything which will allow an arm or crane jib to rotate the free end based on the other end being a fixed point.

I have even resorted to looking at door scripts in an effort to try to make this work up and down when touched. Any help would be greatly appreciated.

Seems to me a reworked door script would work perfect.

Hi, there are two or three ways you can get around this problem, first is the door method, most swinging doors in sl are bascialy boxes that have been profile cut in half, so that they rotate around there center, even though one half of them is missing i.e the rotation point is the new base and dosn't move. Wether you can use this depends on the size of things mostly.

The second way and probebly the one that you will use is to have the crain arm linked to a prim at the base, the prim at the base would be the root prim and that would rotate moving the linked arm with it.

the third way would be more tricky and would involve rotating and moving the arm at the same time i.e. as the angle of the crain arm lowers the arm moves down and away from the base structure so that it apears that the base end is not moving at all. But this would take time and a lot of trial and error so I'd stick to the first or second method if you can.

Hi, there are two or three ways you can get around this problem, first is the door method, most swinging doors in sl are bascialy boxes that have been profile cut in half, so that they rotate around there center, even though one half of them is missing i.e the rotation point is the new base and dosn't move. Wether you can use this depends on the size of things mostly.

The second way and probebly the one that you will use is to have the crain arm linked to a prim at the base, the prim at the base would be the root prim and that would rotate moving the linked arm with it.

the third way would be more tricky and would involve rotating and moving the arm at the same time i.e. as the angle of the crain arm lowers the arm moves down and away from the base structure so that it apears that the base end is not moving at all. But this would take time and a lot of trial and error so I'd stick to the first or second method if you can.

Thanks guy's I will start again and crack this based on your answers, cheers