Switch machine

prusaprinters

<p>This is a compact turnout control that is self latching. I made this to use with my hand built N scale turnouts. It is about the same footprint as the popular Caboose Hobbies ground throw, but about half the height. Added a second narrow style base - better to fit between parallel tracks.<br/> 01-03-2017 Moved model into Tinkercad to make revisions easier. Resized pivot peg for more strength. Resized &amp; relocated several holes for better fit. All parts in a single file. Separate objects to remove the base option you will not use.<br/> 03-24-2017 Added individual files for each part.</p> <h3>Print instructions</h3><h3>Category: DIY Print Settings</h3> <p><strong>Printer:</strong> Original Prusa i3 MK2</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> No</p> <p><strong>Resolution:</strong> .200 or .150 layers</p> <p><strong>Infill:</strong> 25% - 30%</p> <p><strong>Notes:</strong></p> <p>You will need a well adjusted machine for these tiny parts - especially to get the holes and the pivot peg to print. You may need a 1/16" drill for the pivot hole in the rocker and the cap, and a 1/32" drill for the tiny hole in the rocker arm for the control wire.<br/> The cap will dovetail onto the base, but I recommend a tiny amount of CA glue around the dovetail to keep the cap secure.</p> <h3> Post-Printing</h3> <p><strong>Parts assembled - cap glued</strong></p> <p><strong>Handle flipped to other position</strong></p> <p><strong>Underside - showing indexing arms and pivot peg support</strong></p> <h3> How I Designed This</h3> <p>Developed the design in Sketchup and my 3D printer, starting with the original design of how to build a latching lever, then optimizing the base for support and clearances to get the tension right.</p>