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Kristof

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Everything posted by Kristof

  1. Kristof
    ^ Correct. (well in the matter of fact, Hookes law is simplification - Castiglian theorem is more suitable for coil springs, but the base is the same). The thing is that for soft spring, the factor is very, small - the slope of the (almost) linear function is minimal. Therefore, the difference between the force for, lets say, 1/4 compression and 3/4 compression is insignificant - not in theory surely in this application. Not even stiff shock absorbers would be suitable for this, I believe. But then again, It may work bettet than I anticipate :D
  2. Kristof
    Interesting! Is there a perspective of it working faster? Because I think the big part of the charm of these useless boxes is in the speed of the counter action. Delay between swithing and reaction is good, but the action itself should be fast :)
  3. Kristof
    Ambitious. I wonder if Blakbird could confirm the cooperation - that would surely relief some doubts I guess most people have. As for now, I have mixed feelings about this too and your first update on ball cleaner isn't much convincing either. In all honesty.
  4. Kristof
    Great progress. Although there is still one think that seriously spoils the look for me. I already commented on MOCpages regarding that - the face texture on the hull plates. The combination of modified bricks and plates-on -side just seem to random and nothing like the real thing. Especially the modified bricks woith handles look out of place. I believe there are better ways to mimic the various details on the armor plating, which is indeed great thing to do :) For instance, there is this thick distinct edge stripe going all along the sides on the venator. Nobody have successfully represented this in lego so far - may you be the first ? :D
  5. Kristof
    Very nice! The cockpit is probably the only place that isn't pure satisfaction but I really don't know how to do it better :/ such lego unfriendly shape, especially in this scale. Tbh I don't like Hachiroku's proposed alternative any better.
  6. Kristof
    Funny thing - this reminds me the first dump truck plastic toy I had as a small child :D Used to have a lot of fun with that thing in a sandbox. Actually I think the scale might have been pretty similar. Anyway, eventhough I never understood your pursuit of building such big thing, I guess I should say congratz :) It looks like dump truck (eventhough more like plastic toy version), it stands, nothing seem to bend or crack, it perhaps even drive (?) and dump (?). Definitely something that not everyone can build. Plus you surely learned quite a lot and you can do better next time!
  7. Kristof
    I think it wouldn't work very well. Both shock absorbers would have to be half-compressed in the 'center' position. Given that the soft spring has close to constant stiffness on most of it's travel (invariant to the compression), there won't be much of an counter action when one is slightly more compressed and the other a bit released. Eventhough it wouldn't harm, there is a little chance that this could overcome just the damping in the small cylinders, not to mention the friction in the hinge and most importantly, the resistance against steering of the vehicle itself :)
  8. Kristof
    That would be crazy huge creation right? Plus both front and back bucket would have to be brick built (unless you want to use Volvo shovel for the front, but then there is that wedge loader shape...). That would be crazy project :) And I agree with Lipko that such machine is not worth it :D The proportions of these small backhoes are funny - perhaps call them cute but who wants heavy machinery to be cute?? :D
  9. Kristof
    Very nice. Good to hear that the steering is controllable just as it is. Could you make a demo video by any chance?
  10. Kristof
    I have had several destroyed pieces so far. Suprisingly, these were mostly old pieces from 80s... old technic bushings, parts that were used to make steering. Oh, now I recall wheels - often cracked in the axle hole. Recently, if there is any damage to the parts, it's either from putting to much stress on it (I step on 1x6 plate and bent it, as simple as that. Or I let 24t gear chew in the stuck mehanism driven by buggy motor...) But oher than that, I don't have any issues. I don't think there has been any decrease in plastic quality (yet... let's see what thi ecology nonsense brings :/ ) and on contrary, lego got much better in designing - older parts had much more weak spots, now there is rarely a part that is likely to break or something. Regarding all these pictures with cracked 1x1 bricks, well I don't know what people do with these sets... maybe they bake them and quench afterwards? :D
  11. Kristof
    That folding video was one of the most surprising ones :D Anyway, realistically speaking, this is a nice idea but a little bit boring creation, unless it can actually press something. In my opinion, motor compressor and more than one cylinder for pressing could help a lot :) Make it resemble the pressing power, just like the real press does :D
  12. Kristof
    Now let's crush some bearing balls :D
  13. Kristof
    Brilliant! I'd have to check back on the earlier georgeous mocs done on this fighter because I always feel you guys can get it even further :D It really looks great!!
  14. Kristof
    Well if the deviation is only 1/2 plate per floor, given that you have about 8 floors, that makes 4 plates - I guess the overal height is now about 80 plates which makes it only 5%. I doubt that it makes any visual difference. However, I have to agree that the proportion of height and width looks different than on the pictures of the real ship. And it really looks more than 5%. But that could be perspective maybe. Sometimes the camera lens can distort the view.
  15. Kristof
    I kinda like how this is a 'classic' regular build. No crazy snoting, no extensive use of unusual parts. It pretty much looks like a grown up lego creator set :D Is this intentional? The simplicity? Or is that just workflow given by the models nature?
  16. Kristof
    Very nice. I hope you manage to wrap everything in :) Looking good so far.
  17. Kristof
    Oh yes, but whenever someone presents an average wheel, perhaps even a bit worse than average wheels and call it 'worlds best and most round wheel', it makes me feel weird about it :)
  18. Kristof
    I think you got it! :D
  19. Kristof
    hmm... using all the superlatives in the title is dangerous. It only can make the perceprion of your creation worse.
  20. Kristof
    I challenge you to at least try to squeeze that in :) My experience with pneumatics isn't sheer but I have feeling you might be lacking force with those small cylinders for steering anyway :D And remember you are actually in a competition ;) RTC steering made by pure pneu, that would be something ;)
  21. Kristof
    I meant something like this. Blue point is the steering pivot axis. Two side cylinders initiate the steering and then, when you want to return to center, middle big cylinder retracts. if the distance between the blue point and the attachment point of the big cylinder on the red circle (which represents a part of the front assembly) is big enough, this might work. Conveniently, once the small cylinders engage steering - they pretty much select the side - you can help them by extending the big one :)
  22. Kristof
    That's great sketch :D Anyway LegoLego, I have noticed that you constantly use one-sided connections. Your suspension springs for example. Or the linear actuators. Or nearly everywhere in the chassis construction. And worse, you use these blue axle pins for it. That makes for very weak connection. Not only it's easy to bend under any side torque, but the axle side of the pin (well and technically also the other side) tend to work it's way loose out of the axle hole. In tecnic constructions, it's best to use the sandwich method, that you hold something in between two other parts - lets say shock absorber between two beams - so the fastener (doesn't matter whether it's 3L pin or some axle) is fixed on BOTH sides of the thing that you need to fix. That prevent it from falling off and heavily increases the lateral stiffness. Of course, this is not 100% rule. Often you have to only use one sided connection, sometimes it's necessary due to the lack of space in small models. Well this is not small model. You have a ton of space everywhere and you desperately need stiffness in such heavy duty truck. By the way the bucket looks weird in proportion. It's really wide for it's length. Also as mentioned by others, you NEED to get more panels :) Building this from beams is murder on these linear actuators. I still wish you good luck with the porject but unlike others I can't let myself to fool you with naive positivity. As for now, your build has some critical flaws (main body stiffness, front suspension and steering, motor mounting, gear ratios) and taking this further without adressing them now will guide you into big issues. Knowing that I'll get beaten for being discouraging and negative and also that I probably won't change your mind anyway, I say that you would do better starting over with some smaller model :)
  23. Kristof
    The only idea I have had about RCT steering done by pneumatics is adding one more cylinder (perhaps the big one) which will be fully retracted when in center position and extend when you steer. then, after steering to one side, you'd retract that cyllinder, forcing the hinge into center position. I'll try to make some sketch later, it's probably hard to understand :D Though I have doubts myself - it should work in principle but in reality, there could be big slack or lack of force.
  24. Kristof
    These skyscrapers arent that atractive builds for me, expecially as solitare MOCs. Though I believe that if put together with some smaller buildings to form a town assembly, that would look georgeous. Could you run such hug rendering by any chance? I think it's about time to see some Bricksburg assembled, not taken apart :D
  25. Kristof
    Always working compressor? I'm not sure if that is a good choice for a contraprion like this.
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