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DrJB

Eurobricks Dukes
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Everything posted by DrJB

  1. DrJB
    You proved my point ... I did not know of the (7, 24, 25) triplet.
  2. DrJB
    Well ... there is always translate.google.com ... That said, very nice MOC indeed. Waiting to see the final product.
  3. DrJB
    Fair enough ... I 'misread' your original post as Pythagora's 'Triangle' .... which I often see mentioned. My point was much simpler than the ensuing 'debate'. I often see people refer to (3,4,5) as pythagora's triangle .. when in fact there is no such thing. (3,4,5) is called an Egyptian triangle, and it does satisfy Pythagora's. As for my excursion into Fermat ... I am not confused as I did not want to venture into 3D bracing as I'm not sure one can do that with Lego parts. Incidentally, there is another triangle (5,12,13) and it satisfies Pythagoras, though it is not called as such. Lastly, this is not about letting it 'slide' as I see this as a 'healthy' debate ... and hopefully we both would walk away having learned something. Cheers.
  4. DrJB
    Very nice ... does it have any PF functions?
  5. DrJB
    41999 also has the V2 ... but that's an expensive option.
  6. DrJB
    I realize these do exist, but your introductory sentence says: 'space objects observation' .. and that threw me off. Though, these ships are used for military applications, not for observing heavenly bodies ... as I initially assumed (sorry, my other hobby got in the way). I had assumed that it is much easier to do space observation from a land-based observatory than on rough seas ... No harm done.
  7. DrJB
    Nicely done ... Though, you really gotta have very calm seas, or else, the antennas won't be able to fix/track celestial objects.
  8. DrJB
    I have seven more ... I must have missed few steps then ...
  9. DrJB
    Not to dwell on this longer than needed ... but Pythagora's theorem only refers to the relationship between the lengths of a triangle (whether it has a right angle or not). It has got nothing to do with the perfect squares, which is really attributed to Fermat ... But, let us get back to Lego. shall we?
  10. DrJB
    Just finished building my 41999 and I have quite a few 'small' parts left over. Primarily, 12x small 2L black pin. Anyone else?
  11. DrJB
    You can get a bit sturdier design by using a technic 3×5 L liftarm, placed at the corner. A side note, I know it is often (incorrectly) referred to as Pythagoras ... but really, it is called an Egyptian triangle, thanks to the Pharaohs and their pyramids. The pharaohs came long before Pythagoras ...
  12. DrJB
    If I recall, the current limitation is built-in the receiver (maybe also the battery box). If true, then no matter how many battery boxes you hook up in parallel ... the receiver will draw whatever max current is limited by its internals, not a milli-amp more.
  13. DrJB
    I wonder how many sets of batteries the whole movie took ... Set it, forget it, come back in 2 hours ...
  14. DrJB
    That is correct. I can name the Jeep Grand Cherokee from the late 90's. Having worked specifically on that suspension, I recall the main Reason for such offset differential is that, there was no room for it to go in the middle. In the end, it does not really matter as the left/right difference in rpm is not affected by the position of the differential. I've been contemplating reproducing the Jeep's suspension myself ... but no much time lately. Keep us posted as to your progress.
  15. DrJB
    Ok, did it at last ... opened my cherished 41999, and my license plate number is ... EK 05112
  16. DrJB
    Nicely done. I got mine from ebay only few months ago ... been on my wanted list for a while. It's one of my favorite sets. One thing I noticed though, the 4L half-thick liftarms are starting to crack ... no clue why.
  17. DrJB
    I'll have a car (+GPS) so, is driving an option? I was advised against but ... not used to the transit system.
  18. DrJB
    I'll be in Berlin in few weeks ... was wondering if there was a place to find legos at a decent price ... besides the Lego Store and Toys-Я-Us
  19. DrJB
    Ok, well, if you're 'learning' a CAD package, you need to decide which one. LDD is fairly easy to use, but it does NOT have all the parts (it has NO Znap parts). LDraw has a more complete parts library, but the interface and use are a bit difficult.
  20. DrJB
    The only one I can think of is this: http://www.bricklink...sp?P=32089&in=S http://www.bricklink...asp?P=x428&in=S It's a toothed pulley that goes with special belts/tracks, though they were only released in 2 different sets ...
  21. DrJB
    Very nice indeed ... Looks like you used ZNAP parts ... correct? If so, I can put the many I have to good use ... at last.
  22. DrJB
    The post reminds me why a 'live' (powered) multi-link suspension is very difficult (if not impossible) to make. Well, it can be made with 2 cardans and a telescopic connection, but quickly becomes very flimsy.
  23. DrJB
    This topic has come up few times, and I came across the video below by LPE-Power. He was able to put together a multi-link with a negative scrub-radius and a non-zero Caster. It looks 'easy' but I'm sure he spent countless hours to come up with such realistic suspension. I wonder if an LDD is feasible at all ... Enjoy.
  24. DrJB
    @Splat: Beautifully done. Between business trips and fatherhood, I had completely forgotten about this thread. You have a very valid point in that by using 3× 8t gears, the three rubber elements cannot be 'aligned' and thus, they will not grab at the 'same' time, and will cause some vibration. Nicely done again.
  25. DrJB
    Per their website ... NJD is responsible for the maintenance and construction of new train tracks in Norway ... If this is made in Lego, it's a good opportunity to bring the Technic and train themes together ... as I do not recall ever seeing a technic train.
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