🚉 SET: Lego DUPLO train tracks (optimized)

UPDATE 25.2.2022:

• check out my lego duplo BRIDGE! 
  • https://www.prusaprinters.org/prints/137837-set-lego-duplo-train-bridges-optimized

UPDATE 11.2.2022:

• added 0.3mm layer height gcode files for all tracks
  • → faster prints, still looking good, still nice fit on other lego bricks (lower part is needed to be printed 0.2mm for good duplo connectors, upper part 0.3mm via variable layer height)
• added quarter tiny little sizes for all angles :)
• added 3mf+gcode for printing 8 different tracks at once (overnight printing starter pack ;) 

UPDATE 8.2.2022:

• I have added hexagonical crossing of 3 train lines

Intro:

• lego duplo compatible railway tracks
  • i was inspired by https://www.thingiverse.com/thing:36017 / https://www.thingiverse.com/thing:2921971 but I wanted my own model in Blender. 
  • Once i created the model in blender, I could do various shapes & angles by using arrays, mirrors and bending modifiers quite easily.

Various shapes:

• straight 
  • normal length (exact standard size)
  • half length
  • quarter length
• angled 15°/30°/45°, normal/half/quarter lengths
  • 30° is the exact standard size from original duplo
  • be careful with 45° - it may be difficult for your train to drive through with wagons 
• crossings 90°/60°
  • 60° comes with:
    • hexagonical crossing of 3 lines
    • crossing of 2 lines

Characteristics:

• optimized print (fast, simple, minimized filament consumption)
• optimized connections between tracks (easy joining for kids)
• nice fit onto original bricks
• straight tracks can be put on duplo big board (if anyone needs that) fully
  • for the others (curved) i have designed new tracks bottom standings
• note that look is not exactly as in original (changes were made for better printing)
• no supports
  • (with small exception in 90° crossing tiny supports)

The half sized tracks are very useful when finishing some track shape, with them you will NOT encounter that easily the frustration when standard size tracks does not match in a loop  ;)

Print info:

• PLA, 0.4mm nozzle, 0.2mm/0.3mm layer
  • attached gcode files for 0.3mm layer height - using variable layer height settings, where bottom part for attaching on other lego bricks needs to be 0.2mm while the rest can be 0.3mm
    • however 0.3mm layers look little bit worse, if you want very nice result, check 0.2mm gcode files
• no support, no brim needed
  • exception: 90° crossing needs tiny supports on crossings of the bridges - this is because of being able to still be put on big duplo board (if anyone needs that)
• easy & fast (i was printing all of them on 200% speed - after 1st layer)