Small collection of wooden train track compatible pieces.

thingiverse

Inspired by other wooden train track designs I decided to make my own. I wanted a chamfer on all the pieces so that after printing I am not left with very sharp edges. After importing others designs in FreeCAD, I was not able to chamfer the .stl files successfully. So, I made my own designs. With the help from http://www.woodenrailway.info/track/trackguide.html I got the exact dimensions for all the tracks. Most tracks come with grooves on top and bottom so that for example curves are automatically a left and right curve. Besides the standard track pieces there are also a few special pieces, like the outer curve track of a double track (Brio EE) piece. Print Settings Printer Brand: Ultimaker Printer: Ultimaker 2 Rafts: No Supports: Yes Resolution: 0.25mm Infill: 24% Notes: Print the supports in a grid pattern with 25% fill. Distance x/y 1mm, distance z 0.15mm. 0.8mm shell, 0.75mm top/bottom. I used PLA plastic and printed it really fast (top/bottom 50mm/s, outer shell 60mm/s, inner shell 70mm/s, infill 80mm/s) on high temperature (230 celsius). Works out great. Post-Printing Step 1: Remove supports. Yep. Remove the supports. Step 2: Flame polish ugly white spots. I used a small gas torch to flame polish the plastic where the supports were . After removing the supports you get left with ugly white spots. A quick pass with the torch polishes the plastic. But do not over do it, or you are left with a warped or molten piece. How I Designed This FreeCAD 3-way switch FreeCAD parameter definition using spreadsheet. Building in FreeCAD I used FreeCAD to build the track pieces. First I defined all the design parameters in the spreadsheet. When sketching, I referred to the dimensions in the spreadsheet. That way I could very quickly generate new track variants. I only designed 1 curved track. Then used the spreadsheet to generate all curve variants. No more designing over and over. I used FreeCAD to validate dimensional fitness. Using a H1 cross and 4 3-way pieces, you can make a large 4 way switch.