Train Track Rails, compatible to interlocking buildingbricks like Lego

prusaprinters

<p><strong>Introduction:</strong></p><p>Since the big Lego Purge, it was really hard to get any rail design from the internet, until now. Ive constructed any curved standard rail, “almost” in compliance with the L-Gauge standard ( <a href="http://l-gauge.org/wiki/index.php?title=Track_Geometry">http://l-gauge.org/wiki/index.php?title=Track_Geometry</a> ). A big focus of attention was set to the connection between the different rails. It fits really well with tracks, of its own kind and other manufactures.</p><p><strong>Settings:</strong></p><ul><li>Layerheight 0.2mm or higher (otherwise, the connection wont work)</li><li>10% Infill should be enough</li><li>No support, bridge speed 60 mm/s</li><li>If your prints tend to warping (like mine do), I would highly suggest to use a brim or gluestick</li><li>Ironing on the top layer</li></ul><p><strong>Choosing the Tracktype:</strong></p><p>The file name has the following structure:</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/68158/rich_content/135efa74-3a53-4bec-a57a-a401ae0ae387/filename_explanation.png#%7B%22uuid%22%3A%22b02f01c9-1075-4abf-aac8-84c8c5164c3b%22%2C%22w%22%3A2056%2C%22h%22%3A1032%7D"></figure><p>The unit of the radius is in Legoblocks (=8mm). The radius is meassured from the centerline of the track.&nbsp;</p><p>In this example the distance from the centerline of the track to the centerpoint is “72 Studs" = 576mm. The span of the track is α=11.25°. This means 8 tracks create a quater circle ( 8x11.25°=90° ) or 32 tracks create a whole circle.</p><p>In comparision the curved track from Lego has a radius of R40 (much smaller). A lot of trains don't like the radius and slow down, due to friction.</p><p>Straight Tracks only have the lenght in their file name.</p><p><strong>Design Choices:</strong></p><p>First of all, I didn't hollow out the “bricks” of the track, because I wanted to optimised the part for 3d printing. The tolerance between the interlocking parts ist almost everwhere 0.2mm. This gives a nice snug fit. The geomtery of the track, like the profile of the track or the arrangement of the plates, is given by the L-Gauge standard</p><p>&nbsp;</p><p>P.S.: &nbsp;This is my first time contributing to the 3d-Printing Community, because the other things I constructed, weren't really usefull. Please hit me up, if you think, there is something wrong with my design, I am always open to constructive critique. You can also ask for custom tracks with your radius and span which I can construct and add to the pool of tracks</p>