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KirTech LAB

Eurobricks Knights
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Everything posted by KirTech LAB

  1. KirTech LAB
    Now the instructions are available!
  2. KirTech LAB
    Great concept! +1 I can't open ReBrick since yesterday. It's very strange.
  3. KirTech LAB
    Wow! That's so cool! Both front and rear parts are awesome and the entire model too!
  4. KirTech LAB
    Great machine!
  5. KirTech LAB
    Beautiful trucks! Do you have the movie?
  6. KirTech LAB
    Thanks! I don't plan to create instructions. Maybe I'll film additional movie about the excavator.
  7. KirTech LAB
    Nice car!
  8. KirTech LAB
    Thank for comments! What I think about steering: in real machine would be great to realize all the normal steering, skid steering and maybe the possibility to drive side-by-side. I've done only the skid steering for reliability and to save construction time. All the driving motors are connected to the same channel. But I can control them separately because they are mounted under the superstructure and the signal is blocked by it. But if I go on the side of the assembly all the receivers will receive the signal simultaneously. Yes I was thinking about truck trial during the filming :))
  9. KirTech LAB
    Hello All! Today I present my new MOC. It was built special for LEGO Technic Mercedes-Benz Future Truck competition. The goal: to construct Mercedes-Benz truck of the 2045 year. So it’s my version - Multifunctional Truck Platform. Full video demonstration you can see at the end of the post. This model is based on six-wheel AWD module with full independent suspension and outriggers (2xXL motors, dimensions – 48x23x9 cm, total weight – 1580 g). The module is pilotless and it has electric motors. The cabin is just an option because the modules can be united and there is no need to have the cabin in each module. For example: here all the modules are controlled by excavator operator. The module has zero turning radius. It can be remote controlled at distance up to 1,5 km for local maneuvering. The wide range of the rigs can be mounted on it. I’ve built the truck body and the excavator for instance. The truck body has all-side unloading; it’s very comfortable at narrow building areas. The excavator has one extra function – an extensible boom. So it has very high performance and wide range of working. There are approximately 42 3L universal joints in this MOC – it’s a record for me. Video demonstration: I hope you like it! Thanks for watching!
  10. KirTech LAB
    A bit more information about the mechanisms:
  11. KirTech LAB
    Are you talking about 3L cardans or about CV-joints? I have an idea of vehicle but I'm interesting in theory too.
  12. KirTech LAB
    Yes the bigger gears the less the friction. And we can place twice gears to reduce friction too. I was doing that in my Arctic Truck and in my racing boat - this system works very good!
  13. KirTech LAB
    I think it can be one more disadvantage - high rotation speed will result in fast wear of axles (probably)
  14. KirTech LAB
    Hello! Today I want to share my idea how to reduce the U-joint stress in transmission. I haven't try it yet so maybe somebody was trying it and it won't work at all. So I need your opinion! The basic task: to transmit the torque from motor to wheels with reduction through cardan shaft. If the wheels are big it can result in u-joint damage. We know that the chain "motor -> cardan -> REDUCTION -> wheels" is better than "motor -> REDUCTION -> cardan -> wheels" because in the first case less torque is applyed to u-joint. So what if we add two more stages of gearing: gearing UP before cardan and equivalent gearing DOWN after it? Does it reduce the u-joint load in comparison with the first case? The final chain: motor -> gearing UP -> cardan -> gearing down -> reduction -> wheels. What do you think? Is it good idea or just one more perpetuum mobile? :)
  15. KirTech LAB
    Cool machine! Very technical!
  16. KirTech LAB
    It's a brilliant! Excellent model as always!
  17. KirTech LAB
    +1! Have a good trip!
  18. KirTech LAB
    That's awesome!!! You can drift with it :)))
  19. KirTech LAB
    Very promising start! And the original truck is awesome. Good luck!
  20. KirTech LAB
    Thanks for kind words! I've made test video about the mechanisms of this MOC. The original language is russian but I've made subtitles as always. So I'm very interesting in your feedback both about mechanisms and such type of movie. Thanks for watching!
  21. KirTech LAB
    2 MajklSpajkl: Thanks for your suggestion! I think you should choose the set which is really more important for you! I'm happy with any of prizes :)
  22. KirTech LAB
    :))) I've bought two of them when I was building this monster - http://www.eurobricks.com/forum/index.php?showtopic=101943 so it will be the third one :)
  23. KirTech LAB
    I like your CV-joint! Good work!
  24. KirTech LAB
    Thanks all who supported my model! I'm very happy with result of contest!
  25. KirTech LAB
    Congratulations to the Winner and to all contestants! It was very interesting and funny contest! Thank you Jim :)
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