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oracid

Eurobricks Knights
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  1. oracid
    Yes, of course, the weight of the tank has some bearing on the outcome. But already, weight for weight, we see they are solutions that are better than others. Intuitively, I would say that if we want to increase the weight of the tank, then we must also increase the contact surface of the tracks, so their width. I'm making a big tank, a very large tank, and I have some ideas on the issue. Of course, I will come back. For now, I am waiting for material, besides, I am always waiting for material. And I still have many ideas to test. Then the next step will be to double the steps size from 5cm to 10cm ...
  2. oracid
    The idea seems good, as long as each little wheel is not in contact with the previous and the next one. Maybe, can you try to alternate two different wheel sizes. This will reverse the rotational direction alternately. So the larger wheels supporting the plateau turn all in the same direction.
  3. oracid
    Here is the second video of my series on testing of a climber tank. This time I propose a solution that is closer to reality by using window sticker seal. As the elastic, this solution comes at a very low cost. In France, and perhaps in other countries, window seals often have the profile of the characters D, E, P and V. They are found under that name in DIY stores. Here I use a D seal. The advantage of this solution, unlike elastics is that it does not impact the interior of the track and any bearings located on either side of its axis. After some tests, I quickly found that the grip on the incline was not good. So I decided to cut the curved portion of the D. There, the result exceeded my expectations. Note that the material that I used to make the staircase and the incline is not cardboard, but plastic sheets. You should know that these leaves are very slippery. Thank you in advance for your comments.
  4. oracid
    Very good idea !
  5. oracid
    You are a fine psychologist ! Kelkschiz, thank you, you're one of my favorite references for everything related to the tanks. Philo, thank you, greatly flattered !
  6. oracid
    How did you guess ?
  7. oracid
    You know what ? You're a genius! Indeed, one can see some scanners on YouTube, but it does detract from your merit.
  8. oracid
    Well, I'm red with embarrassment. Thank you for your support. Actually, the idea of the elastic is not mine, I've seen it many times. The only originality is perhaps how to position the elastics diagonally across 2 elements track. In this way, only one wire of elastic passes between the elements, whereas if the elastic is positioned crosswise or otherwise, two wires pass between the elements and this has the effect of greatly reducing the flexibility of the track. The elastics are not fragile, they have a thickness of 1.8 mm, but be careful not to use the elastics that children use to make bracelets, these are very fragile. You will procure you them in an office equipment supplier. About the suspension, I did not think it would please you as much. Frankly, I had no idea of the originality, I'm very surprised. I use it in another very large construction and it is very effective.
  9. oracid
    No. Do you mind ? I did not think that the style would cause so many comments. My English is so bad ... Thank you everybody.
  10. oracid
    By searching solutions for tank can climb stairs, I decided to do video series on the subject. Here is the first video that shows the environment and a solution with elastics and also shows the importance of the length of the tank. Thank you for your comments.
  11. oracid
    Thank you for this advice. I'll offer me.
  12. oracid
    The idea seems good, as long as each little wheel is not in contact with the previous and the next one.
  13. oracid
    This achievement is really great! I dream of another, able to make very large posters with 3 RGB pens. Thank you for all this.
  14. oracid
    I agree, but here it is with integrated motor speed reducer in output. I'm sure you're right, but I still do not understand. That is my problem. Anyway, thank you for your explanation, I take good notes.
  15. oracid
    Do you mean that any differences in speed of the two motors can break the gears? One can quite easily turn the axis motors XL, so I thought reciprocal attenuation solved this problem.. I feel that your two solutions are equivalent.
  16. oracid
    The question I ask myself, regardless of the power problems, is it dangerous for the internal gears of the motors to couple two motors XL to double the power of an specific action ?
  17. oracid
    Interesting ! Very interesting! Is it possible to go faster?
  18. oracid
    This interests me a lot ! Regardless of the differential problem, do you think it is not advisable to couple two motors XL, powered from the same battery?
  19. oracid
    This is very good, but why don't you use the small servos instead of the larges ?
  20. oracid
    May be, you can try this : http://alpha.bricklink.com/pages/clone/catalogitem.page?P=x1681#T=C
  21. oracid
    Copy or not copy, this shows that we must not rest on our success and always innovate to not disappear overnight.
  22. oracid
    I know this stuff, but it's too expensive for the size of my tank. Today, I study non Lego solutions. I advance a bit by eliminating solutions ... It is true that my goal is to climb stairs, not to make a copy of a battle tank. My tank is 1m long. Of course, I will present it here when it's finished.
  23. oracid
    Thank you for sharing. I do not find the reference of this rubber on Lego shop, can you give it to us please ? Unfortunately, the 14149 of the set 45560 is really expensive.
  24. oracid
    I think it is exactly the same video. The purpose is to encourage him by clicking on the thumb if you like his video. Well, this is what I understood.
  25. oracid
    Congratulations for the originality of your creations !
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