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…..........................................................…--- “Gravity-Switcher” ---

....--- Weight/Gravity Operated 3D Printed Switch Machine ---

..............................--- Push-Pull Controls ---

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You can find all the files to 3D print this object and others on my thingiverse.com account ( HERE ).

To operate the Gravity-Switcher one only needs to lift the weight on the one side. There are numerous ways to achieve this. The simplest would be a string (fishing line) that runs to the side of the layout with a loop on the end. Pull the string and put the loop over a hook to hold it and you would of thrown the turnout. I'm hoping that many of you will come up with alternative ideas and share them. I'd like to hear what has worked for you.

On this page I'll present a Push-Pull option I've come up with and on the next page will show a 'lever' option. So hopefully the following pictures will demonstrate two Push-Pull options. One without a switch to change the polarity of the frog and one with that option (remember) there is also the option to change the polarity with SPDT switch on the switch machine itself.

The Slide Handle could be something else if you didn't want to print the one shown, such as a wood pull knob.

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=== Push-Pull Control With SPDT Switch ===

This option uses the same handle and wooded dowel but the body has a mount on it for a SPDT switch which can be use to change the frog polarity or operate another function. The switch is activated by the wooden dowel sliding past it. The dowel either pushes the lever on the switch or releases it.

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The templates shown above can help in mounting either of the Push-Pull Controls.

For a video on how the Push-Pull controls operate the Gravity-Switcher click ( HERE ) or on the picture above.

You can find the files to print the items on this page only ( HERE ).

You can find all the files to 3D print this object and others on my thingiverse.com account ( HERE ).

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