Customizable train funnels

thingiverse

With this customizer, you can create your own train funnels in one place. You have the option to make a 1:2, 1:3 or 1:many ratio, and also control how the tracks end - straight or curved. There are additional options to print with or without support, add a rim on the outside, and thicken the inside rim. Why another crossing customizer? It's based on the "building block interface" module. First use this module to calibrate simple interfacing geometry. When you're satisfied, you can then print funnels with this track funnel generator, having one stop for most configurations you could think of, without wasting filament by tuning whole new parts over and over. This funnel generator also needs the awesome dotSCAD library. I've tested the #0 and #5 so far, using 3 iterations to fine-tune the details. These funnels should work in all situations (local only, empty wagon in front and/or heavy wagon at the back, etc.). When you create your own custom version, don't forget to post a photo. Fun fact: It's nice when using two #0_funnels, you can run your train forever making 8-shaped moves. (Although you'll need to refuel the train...) I also tried this with #5_funnel, which is a 1:3. You have control over which of the three joiners the train will choose! When adding one straight track in front, the train will move straight on. When you do a left curve in front, the train will take the right lane on the funnel. The curved track is somewhat pointing the train in a slightly different direction, which seems to be enough for taking the right exit. Check out the other building block generators: * Train tracks (& elevation adjustment) * Crossing generator * Train specials * Flex track