Marxpek

Eurobricks Citizen
 View Profile  See their activity

  • Content Count

    450

  • Joined

  • Last visited

Everything posted by Marxpek

  1. Marxpek
    I really do not understand why so many people are already designing and building, we have no idea if and when this contest will start, let alone what the rules will be, you could be building something that is not allowed in the contest later on... (still a fun process of course) I see people are eager to participate here, but patience might be best until the rules are set?
  2. Marxpek
    @Aventador2004 thanks for that info. @Zero (Zblj) that means that wheel would "only" be 65% bigger in circumference, meaning it would still need gears to reach similar speeds, not to mention the increase of the frame and weight. i think i will pass, fun idea though! ;)
  3. Marxpek
    Owh i'm sorry i thought you meant the contacts within the 9v battery box. I wasn't aware of this and i am interested in it, however this doesn't sound like a Lego solution, you want to use a 9v block battery for weight reduction?
  4. Marxpek
    this is a shunted battery box...
  5. Marxpek
    that sounds like a fun thing to try! but i wonder if all connections that i will have to make within this "wheel" to fortify it, will hold with all this force. Do you happen to know the diameter of an assembled ring?
  6. Marxpek
    i don't think that's fair, since it will give the car a better power to weight ratio, with the built in battery.
  7. Marxpek
    It is indeed a great MOD, but where is the crane it is supposed to be pulling? ;D
  8. Marxpek
    The only tires i have considered using here are the motorcycle tires (cross and slicks), the claas tire and the 94.8mm balloon tire, the last one slips like a maniac so that one dropped off soon, but i have not checked different types of rubber, i'll check if i can find differences.
  9. Marxpek
    The motorcycle tire is 92,4mm and the claas tire is 107mm, meaning the circumference is about 14% smaller in the slick motorcycle tire.
  10. Marxpek
    In theory this is correct, but in practice i found this to be the best tire for a few reasons: - it is relatively wide helping with stability - It is more "round" than the motorcross tire, this one gives a way more bumpy ride and cross tire is too loose around its rim. - it has more traction than a slick motor tire ( i do not own 3, i will try when i get 1 extra, but the tractor tire can already loose traction on a slick surface with this amount of power) - the tractor tire sits very tight around the rim, all other tires get loose under high centrifugal forces (with 4 buggy motors even the tractor tire wants to come off the rim when spinning freely, but crossmotorcycle tires do this way worse) - any other tire is at least 6% smaller in circumference, meaning you will need more rotation of the axle, meaning more resistance as well. I have tried and tested several setups and always ended up using the tractor tires, they just give me the best result, but i challenge you to improve this, i always like healthy competition, drive people to greater heights! I would love to see these calculation, but it sounds as if these are theoretical speeds without load.
  11. Marxpek
    This has proven to be very hard to find near me... but i'll keep my eyes open.
  12. Marxpek
    Thanks, i was not aware that this was possible, i'll see into that. And yes it is kind of crazy, i really fear this setup can destroy one of the 2 rc-units, when i forget to turn one on, the unpowered motors will act as generators, sending current the wrong way into the rc-unit that is not on, i have no idea if this can damage it, but it sounds like a bad idea, but it can hardly accelerate on 2 motors, so that issue is only present without load i suppose..
  13. Marxpek
    I want to reserve my youtube channel for complete video's, so i don't want to post clips like this there. Uploading to bricksafe is no problem just embedding them doesn't seem to work, or i'm doing something wrong. And yes 32,7 km/h surprised me as well, my aim was to go over 30 and on my 3rd run i already managed well over this. 35 km/h will be the next goal i suppose, looking at the gps data curves it looks doable..
  14. Marxpek
    Hihi, it was a joke of course, currently making a topic for my new thingy, and i can tell you: 25 km/h is easily beaten by this ;)
  15. Marxpek
    Ok i'm done, what where those rules again? ;D
  16. Marxpek
    please, no restrictions in design, size or scale... it just over complicates things and inhibits creativity... i think this should be a search for the best driving car, in whatever design you like, if you can make a huge jeep design go faster than a small race-car design, unlikely, but go ahead. More restrictions brings less creativity and less entries, more classes will just make this one idea more separate contests, i do not see the need or use.
  17. Marxpek
    I like the test track idea, but then it should be a predetermined track, (nearly) the same for everyone, maybe something that everyone could draw on asphalt with chalk or something. If we get to create our own track for our own built car, we can just make a track that suits the car, so it looks like it has perfect handling. Maybe a track with some rules like: -It has to have 1 hairpin turn, -it has to have 2x 90 degree turn, -it has to have 2x 45 degree turns, -a track width of 30-40 cm, just some ideas. This leaves some room to set up your own nice track, but has some restriction and similarities to the tracks others will use, that way we can compare how a car handles for example a hairpin turn.
  18. Marxpek
    I think this could work if we take the size thingy out, you could say: handling is steering at speed, whoever can drive the most circles (of any size, determined by the cars turning-circle and speed) within a minute, has the best handling. Or maybe make it the most figure "8's" so the car will have to steer both ways.
  19. Marxpek
    ditto
  20. Marxpek
    Besides the fact there are already too much categories suggested, this will just be a contest of who buys or has the best RC components and will have nothing to with Lego speed anymore, let's save this category for when we do a flying Lego contest?
  21. Marxpek
    Just something fun i'd like to share: here is something i did in april (before i was on the forum) not that this fits into this contest, it's technically not a car and filled with RC components, but at the moment i'm working on some improvements, i want to go over 30 km/h regarding all idea's and comments: it is great to see so many people fired up for this, but lets just wait for that poll, we (including myself) are over-complicating things with all of our idea's here i think.
  22. Marxpek
    a waterwheel?
  23. Marxpek
    sorry i fail to see the logic in this...and correct me if i'm wrong but doesn't it have around 800 rpm for the e-motor and 2000 for the trainmotor? the e-motor seems a bit pointless to me as its torques is too low, but that train motor seems as a decent option, but might be heavy compared to a L-motor (the L-motor has slightly better mechanical output power). i would say it should be allowed (but i do not see why someone would want to use it except for a very very lightweight car in the case of an e-motor) i doubt the power output can compare to any other motor however you gear it.
  24. Marxpek
    i guess it is not since it predates 2005.
  25. Marxpek
    very true, this should be clear first, before anything else. But i think handling was mentioned as one of the main goals previously, so that would need a curvy track yes..