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aeh5040

Eurobricks Knights
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Everything posted by aeh5040

  1. aeh5040
    Just tried it, and amazingly they DO mesh almost perfectly with Samsonite gears!!! Nooooooooooooooo!
  2. aeh5040
    As I said, it can actually handle moderate torque, although that certainly requires proper bracing of the supports.
  3. aeh5040
    Please show us!
  4. aeh5040
    I think most people reading this forum already know what binary is, but thanks anyway. However, your proposed explanation of this counter is certainly incorrect. Gearing down by 1:2 for each bit would simply result in each lever moving at half the speed of the previous one. But you can clearly see that they all move at the same speed, but at different time intervals. What makes this counter particularly innovative and interesting is that all bits have their own power source - you can see the axle running along the front that power all of them. This means, I think, that it could be extended indefinitely without the problems of cumulative backlash and power loss that result from odometer-style designs (such as the Geneva mechanism based one in my Pendragon). (Although all this is to some extent speculation, because as I said, I cannot see the details of how this one is working).
  5. aeh5040
    Awesome work! I'm glad PG52's very polished solution did not discouraged you from having a go at your own implementation. The results show that it was definitely worth it!
  6. aeh5040
    Yes and no. I think one area where meccano has an advantage is that fine adjustment is more often possible. You can screw something down tightly in almost any position (although it can be quite tricky to do this in practice). With Lego the geometry is more constrained, but on the other hand the alignment is automatically correct for many purposes. Not that I'm an expert in Meccano. But I did dabble with it as a child.
  7. aeh5040
    Here is a fascinating binary counter I recently found on youtube. Note: this is not my creation! I wish I could see enough detail to figure out exactly how it works. I posted a comment asking for more info, but no response yet. Anyone up for a reverse-enginerring challenge?
  8. aeh5040
    In the last few weeks I have been looking at some of the creations people have made using Meccano (aka Erector in the US). The community appears to be smaller than the Lego one, but it tends to be more focussed on the mechanical, and there is some amazing stuff to see. I have no intention of starting yet another expensive toy hobby, but it provides some great inspiration for possible MOCs. Here are a few things that I find quite astonishing. The first one combines aspects of akiyuky's ball factory and lift triggered by a stuck ball - need I say more? (The first two are from the same builder).
  9. aeh5040
    I just built the A model, and I rather like it. It is much bigger than it looks from the box - about 30 studs long. There is only one function - the landing gear - but it works very nicely. Apart from that, it's a very solid build, and achieves an elegant shape with an absolute minimum of parts. I don't usually get excited about small sets, but this one appeals to me. I like the feeling that every single piece has a purpose.
  10. aeh5040
    Not such a mess - it looks pretty good for an initial prototype! The most important thing is that it works! A few things you might want to think about: ideally you want the cylinder to be able to expand and contract to its full extent while the switch moves to almost its full extent, but ever without needing to force the switch against its end stops. It seems that you are close to this with the current setup. Also, you should think about bracing. In any brick-built struture there is a risk that the parts will gradually get prised apart under stress. So here, the technic brick holding the pneumatic switch may get lifted off the part below it, which would of course wreck your engine timing. To stop this, ideally you want somewhere some kind of liftarms running vertically to hold everything together, like this: Ideally you might also want to support the axle holding the pneumatic cylinder one both sides of the cylinder. Although if it is working already there may be no need. Finally, getting enough air to run penumatic engines at a decent speed is always a challenge. If you want to do it with lego pumps, you'll need lots of pumps and lots of motor power!
  11. aeh5040
    Thanks again everyone! I am heartened that such a simple bare-bones presentation of a mechanism has generated so much interest!
  12. aeh5040
    Interesting! Such arrangements do of course exist in real life, but usually the gear teeth are specially designed for it: My guess is that using standard Lego gears for this will result in more friction and part wear, but perhaps the effect is not significant in some situations. It would definitely be interesting to see more expirements!
  13. aeh5040
    I hate to break it to you, but that helicopter won't fly... :laugh: Just kidding - i don't want to start that debate again...
  14. aeh5040
    I think we've all had these experiences. It is a strange phenomenon. If you saw a painting someone had painted, would you ask if it was from a kit, or how much the paint and materials cost? Perhaps because most people's only experience of Lego is seeing sets for sale, they automatically think that everything must work like that - rather sad, really.
  15. aeh5040
    Wow, I wasn't expecting so much interest - thanks folks! I'll try to do more stuff like this. It wouldn't be suitable for really high torque, because of the long unsupported axles, but with a moderate amount it actually works fine. Yes, it will. As Teuk pointed out, it will even work with flexible connections. Now that is a compliment! Thanks! I guess it might be possible to combine several (perhaps larger versions) to make a sort of ball escalator - not easy though... This made my day! The intention was that both should be reconstructable from the video. I don't have anything else right now, but if you are having trouble with something specific, just ask... It was just one of the youtube freebies. It reminds me of the Dubliners version of "Protect and Survive", but I don't think it's actually related!
  16. aeh5040
    Of course it is fine to refuse to sell something! How could anyone possibly have the right to compel you to sell anything (well, unless it is the government that needs your land for a railway, etc. :D)? If someone really is serious about buying a MOC, I would tend to expect that it would ultimately be a matter of price. E.g. for 1 million Euros I'm sure most of us would not hesitate for too long! In any case, it's just up to the individuals concerned. If buyer and seller find a deal that they are both happy with, the sale happens - if not, it doesn't. End of story. Here it is pretty obvious that this person is not serious in the least. It is mainly just amusing that he/she is so determined to show the world what a loser they are! For this reason I normally just leave the foolish comments there for all to see. But you can also delete comments if you want to. I usually do this when there is something actually offensive (bad language or abuse). In summary: relax - there will always be losers in world. It is not your job to pander to them.
  17. aeh5040
    Yes I agree! I had to make LEGO versions of these things to understand how they work...
  18. aeh5040
    I feel a bit embarrassed posting these given some of the amazing creations we've seen recently, but here are a couple of little mechanisms. Neither is original as a concept, but the LEGO implementations are new. Enjoy! Paradoxical gears: turn in the same direction! Hobson's constant-velocity right-angle joint:
  19. aeh5040
    Like everything from Jason, a fantastic piece of work! Very original, beautiful motion, and perfect styling!
  20. aeh5040
    I hadn't noticed you were Vancouver, Rebricker. This makes BrickCan a must for me! Looking forward to some awesome GBC action... I'm especially excited about the train loader - that may be my favourite module of all. Keep up the amazing work!
  21. aeh5040
    Thanks again for these awesome reviews, Jim! You wrote: but I don't see any orange axles (which would be rather nice). Where are they? What color is the new 3L with stop? It looks like a strange brown in the picture. Well, this is a bizarre set. I think it might be the first technic set that I buy just as a parts pack, and don't bother assembling the model!
  22. aeh5040
    Looks like a nice set! The first actual multi-speed gearbox for quite some years, right? (Blackbird? )
  23. aeh5040
    Thanks for the nice review! The landing mechanism looks quite cute. Aren't the yellow axles 5L, not 4L? (Very strange that they would release such a part).
  24. aeh5040
    One could try contacting him on youtube, of course. Given the obvious popularity of his videos, I'm not sure whether he would read all the comments, but I think I've seen him respond to some of them.
  25. aeh5040
    Very cool! Who could argue against such a project? Akiyuky is a god, and Rebricker and Blakbird are worthy high priests! I could try to do some testing if needed. E.g. six heads?
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