LEGO compatible 3d printing Vol. 2 – train tracks and custom Technic pieces



This is my 2nd video about 3d printing parts that are compatible with LEGO pieces. I used a Flashforge Adventurer 4, and printed different tracks designed by 4DBrix – https://www.4dbrix.com/
And also used a parametric design tool that is great for Technic compatbile parts – https://marian42.de/partdesigner

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33 thoughts on “LEGO compatible 3d printing Vol. 2 – train tracks and custom Technic pieces”

  1. Great video.

    I personally tried to print lego components. The best solution for me could be to use an SLA printer as the quality is better and the joint with the original legos is more solid.

    I printed an entire lego technic set in 2:1 scale using PLA and ABS, in this case the result was satisfiyng.👍

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  2. About the supports inside the pin hole – I'm designing those parts myself in solidworks (I would be lazy if I knew there was such cool tool though), but if you make surface of those sides of the pin hole slanted, you don't need support. And it can be something like just 15 degrees depending on how thick layer you're printing.

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  3. One cool thing you could easily do in the printer is really high detailed props for the "utility" technic sets. Like in the excavator or trucks you could print some ruble pieces to put on the loader and bed of the truck. really cool vid

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  4. Hey man, I got a flash forge adventurer 3d printer and after a couple uses I just didn’t like that I couldn’t get much detail from it, I purchased an elegoo resin 3d printer for roughly the same price and started making custom parts and I didn’t need any clean up I just cure the print and it fit with existing Lego bricks

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  5. I tried printing some of the tracks, all worked well except the track switches, Lego has a spring in the switches and the 3d printed parts don't which impact the trains when they hit the switch from the opposite direction 🙁

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  6. I would be most interested in if 3D printing works for minifigure accessories?

    For instance, due to Lego's anti-war policy they intentionally limit weapon options, but there's a lot of gun types that would be nice to have for the Star Wars line.

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  7. Pinholes and Studs are the WORST for FDM 3D printing of Lego Components. I had a model I built that worked perfectly and created great results for me off my printer. I shared the files with another club member after they gushed about my 3D printed model at a meeting. Come to find out he couldn't get it to work, and he blamed my model instead of his printing environment. If he'd not just gotten mad at me and complained behind my back, I would have helped him with the issues… 😛 I hear resin printers have better tolerances than FDM.

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  8. These videos are great but I'm so conflicted. On one hand I love the challenge of only using pieces LEGO makes for models, but I also love making CAD models and 3D printing.
    Also great to see another 3DS Max user! What did you use the software for?

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