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  • MarkB399 commented on TracRat's instructable Wooden Puzzle Lock For Secret Door5 months ago
    Wooden Puzzle Lock For Secret Door

    Wow just how many people do you kidnap and hide away, seems a very elaberate way to do a basic function.

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  • HOW TO: Wire a DPDT rocker switch for reversing polarity

    Hithere, I hope some one can help, I am trying to sort out somecontrols for a wheelchair I am building, I have sorted out all theactuators to run from separate rocker switches (4 x 6 pin DPDT) theyare powered from the on board 12v batteries 2x =24volts what I wantto do is try to find a way I can wire up several actuators (the sameones I need with separate controls too) so I can press one button andhave the seat riser the foot rests and the strand function all workfrom the one DPDT button as all are required to make the chair get into the stand position. The problem is I need to be able toautomatically isolate the power from the separate buttons just incase I activate them by mistake at the same time thus causing Pos+ &Neg- being sent at the same time to the same connectors on theact...see more »Hithere, I hope some one can help, I am trying to sort out somecontrols for a wheelchair I am building, I have sorted out all theactuators to run from separate rocker switches (4 x 6 pin DPDT) theyare powered from the on board 12v batteries 2x =24volts what I wantto do is try to find a way I can wire up several actuators (the sameones I need with separate controls too) so I can press one button andhave the seat riser the foot rests and the strand function all workfrom the one DPDT button as all are required to make the chair get into the stand position. The problem is I need to be able toautomatically isolate the power from the separate buttons just incase I activate them by mistake at the same time thus causing Pos+ &Neg- being sent at the same time to the same connectors on theactuators. As the functions are battery intensive it also needs tooperate from the on board batteries. Any help advice oh so welcome.

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