Jump to content

Jonas

Eurobricks Citizen
 View Profile  See their activity

  • Posts

    263

  • Joined

  • Last visited

 Content Type 

Everything posted by Jonas

  1. Jonas
    I just want to confirm that the MicroPython runs on Windows 7 (Win7 Pro in my case). The above described problem was solved after I let Windows search a driver for EV3dev (connected via USB). I do not know which driver has been found, but now it works.
  2. Jonas
    Hi, it looks interesting so I gave it a try. I followed the instructions, successfully installed the MicroPython, created an SD card (4GB) with the image, saw and browsed the new menu on my EV3. Then I opened the first program (beep) and wanted to run it. And here I have a problem: When I click on Click here to connect to a device, I see Searching for devices .... and nothing else. Do you think that it is because I use Win 7 Pro?
  3. Jonas
    Really nice and cleverly built! I admire your wide range of building interests: from sophisticated Technic GBC models to amazing modular city buildings.
  4. Jonas
    It is amazing. I liked the previous visual version but this acoustic is even more interesting. It seems to me that the stacked differentials is a hot topic of this season. A couple of weeks ago we had here another fascinating MOC a 64-Speed Lego Technic Gearbox, also based on differentials.
  5. Jonas
    Excellent work.
  6. Jonas
    Just be careful. The connectors are not the normal telephone ones even though they look so. The connectors used by Lego are unique (from many reasons) and the only known source to purchase them is a Chinese shop. That is why also the crimping tool must be modified.
  7. Jonas
    There is a possibility to make your own cables from a more flexible 6-core cable. You will need connectors (a cheep source is e.g. here), a 6-core cable from an electronic shop and special crimping pliers. The latter needs to be slightly modified, see e.g. here. If you plan to use more cables with various lengths, this may be a good solution. Or contact other interested people in you region and make together a small home manufacture.
  8. Jonas
    Very nice. So, if I understand well, the central idea of this GBC is gravity balancing: not just the tensegrity paths but also the lift chairs. Well done!
  9. Jonas
    Yes, I have seen it. But the video is rather short to see what happens after hundreds of cycles.
  10. Jonas
    Hi, I want to ask the users of EV3 system: How much can you rely on position determination made by EV3 unit that computes it from the quadrature encoder inside the EV3 servomotors? Particularly in a situation where the position of a driven mechanical system (e.g. a robot arm) changes quickly and in both directions? Is it precise and robust enough so that limit switches may be omitted? I saw some robots with EV3 and many were without these switches. I ask because I am experimenting with EV3 motors combined with Arduino and even though my control programs (inspired by this project) seem to be fast and accurate enough, there are always small deviations of the position after several movement repetitions. After tens and hundreds of repetitions the deviations becomes critical.
  11. Jonas
    I hoped that my above response would be understood as a hyperbole. I just wanted to pointed out that - for some people - it may seem so easy to ask for limits/bans for cars, planes, travels, some meals, power stations, plastic, .. whatever, except of what they themselves like/need/use. If they want to make the entire world "sustainable", no growth would be possible.
  12. Jonas
    If you decided to share you concerns on THIS FORUM, I suppose you want to read responses that take LEGO into account. Too much plastic produced in the world? Well, let us admit TLG is one of those who contribute to it. Production growth? TLG is one of those companies. People asking for new products and buying them though they do not really need them? OK. That also us in this forum. People wanting new instead of old (still usable) products? OK. That also us in this forum. Etc. So would you agree that the most natural response to your concerns (at this forum) is: Stop buying plastic products, incl. Lego. Let us use (play with) only the existing sets and pieces. Let us share them with others, e,g with our children (and next generations). Or ask TLG to introduce policy: 1 kg new Lego for 1 kg of returned old. ... In this way we stop at least one of the closed loops you mentioned in your posts and make the world a bit more sustainable. Are you ready? Are we ready?
  13. Jonas
    I had to look at the video to see what you mean. If I remember well that gear was prepared for the case that the additional (relay) module would be driven by the main drive - via a gear train attached to the spiral lift. That idea did not prove to work well, so I added an additional motor. The 24t gear was left on its place. Jonas
  14. Jonas
    Thank you, Philo, for the fast response.
  15. Jonas
    Good work, Philo. Does anybody know how is the encoder connected to the output wires? Can we just read binary values on one or two wires to count pulses and get the relative position?
  16. Jonas
    This is my version of Akiyuki's Peanut module. I call it Trefoil.
  17. Jonas
    I agree. The modular concept brings a new level to this amazing GBC system. I am sure that Akiyuki and other people will come with new layouts or even new modules. I can imagine inclusion of straight tracks, maybe also the incline ones. One just needs to keep synchronization. For me, the main challenge is to make an inter-leaving system with just one pair of loader and unloader where a cart will travel 1 and 1/2 loop before being unloaded.
  18. Jonas
    Akiyuki has proved again that his visions go much further than most of us can imagine. Now, it is clear why he introduced the non-straight arrangement of the tracks.
  19. Jonas
    Today I received the roller coaster tracks and cars so I could complete the Peanut module. I am still amazed by its clever design that allows for ball relays and transfers in rather high speed. Moreover, it worked correctly from the first moment after I switched on the motor. I have built the original version as I like its out-of-line orientation and mainly the movable output track which may be easily arranged for loop-back feeding. Here and there I made some modifications, usually to avoid some extra BL purchases, e.g. the replacement of the black banana gear by a series of slopes.
  20. Jonas
    A nice batch of GBC modules. I like that they do not require large amounts of components and hence it will be not that difficult to build and test them at home.
  21. Jonas
    Seems so. I had to build with limited supply so I omitted some parts here and there. The rotating part is carried by 2 pairs of 24 t gears, 1 pair in front, the other in back.
  22. Jonas
    The primary reason why I used them was that I had had a shortage of standard 24T gears and these seemed to do the same job. Later I realized that they look interesting.
  23. Jonas
    This is a really well thought GBC module and in my experience it is fairly reliable. Thank you, PG52, for this nice piece of engineering! And thank you, Ankoku, for your service to community. I have built my version according to PG52's video (and his Brickshelf gallery) while taking also some ideas from Dunes' version (Black star). I had to improvize as I wanted to avoid BL purchases, so my version may look a bit strange in some details. Anyway it runs well. Recently, I tested it in a loop with some Akiyuki's modules. Here is video.
  24. Jonas
    Moreover, he omitted a backdoor in the pump to empty it after a show is finished -:) It is just a joke. This is a perfect module, with several nice technical tricks. And the instructions are very professional.
  25. Jonas
    I fully agree. For me, purchasing his instructions is an appropriate way of supporting his highly inspiring works. I also like that he thinks on those with different skills. For those who want to go the reverse engineering path, there is usually a lot of details in the videos, for the others, there are carefully made BI.
×
×
  • Create New...