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trekman

Eurobricks Citizen
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Everything posted by trekman

  1. trekman
    I have two, and use them occasionally. They are well suited for trailing arm applications, as in their original use.
  2. trekman
    I have a power functions IR receiver which does not work on one of the four channels. But I switch between two other channels and so it can still be used.
  3. trekman
    Some things are impressive, others are plain crazy. This is both. Very slick and functional. Although I can't see it becoming a new set for 2018. Too many motors for that. But well done.
  4. trekman
    This mini 8865 is sweet. I have the original big brother. I was just wondering if you used any of those notorious black pins....
  5. trekman
    I'm afraid the rear pillars, with the panels are a bit too scary for my liking. All the internal features and functions are good, but the body just doesn't do any thing for me.
  6. trekman
    Nice work. We all have to start somewhere, and some of us are old enough to have been brought up on studded lego. if you can master this, then you will appreciate the versatility that the studless parts bring.
  7. trekman
    I hope you get a replacement part, but it does show to all of us how well the Lego parts, particularly the pneumatic elements, are manufactured in the first place. I have some problems with my pneumatics, and I hope I can problem solve as well as you.
  8. trekman
    I'd say it is vastly over priced for what you are getting, but then we are in the silly season for Lego now.
  9. trekman
    I'd say you are doing pretty well. You just need to raise the rear roofline. I also fear that you are too low at the front bib to be of any practical use, speed bumps beware! But it is better than I would do, so keep at it.
  10. trekman
    I thought the first photo was the real model, and then I started looking for the Lego one. Oh hold on. That is the Lego Model. The building is one thing, but it is the photography that really brings the trucks to life. Great trucks and great photos.
  11. trekman
    I would find it hard to see why one of the 1 x1 round tiles would break, as the load is being distributed among so many. If anything, there may be some wear under use, but this will be replicated across all the tiles. Great idea though, and it is nice to see the use of the curved rack piece starting to develop into other applications.
  12. trekman
    Well, I just want to let you know that I am throwing in the towel in this one. After many weeks of frustration, I have had to admit that I have not been able to get my walker walking as I would have liked. The largest problem was the sequencing of the functions, due to the weight shifting ankle movement. There should be about eight movements on the valves in a complete cycle. Each movement piston movement triggered a switch, which then caused another movement. But whilst this was easy in theory, in the original plan, the two ports on the switch did not actually work the two ports on a cylinder. There needed to be some crossing of circuits. As a result the walker locked up within a cycle, as the exhaust air was not exhausting properly. I then resorted the right leg switch operating the left leg, and then the left leg switch working the right leg. The ankle movements were added later. This did create a cycle which worked, but not in a constant action. It also took some time sorting out the ankle weight shifting. This does work, but only a short powerful stroke was required, ideally a cylinder half opening, which was impossible to achieve. There were other issues with cylinders having minor leaks, which caused irregularities in the cycle. Needless to say, this is much easier to achieve using an NXT, or motors and switches. I don't give up easily, but due to work commitments, and other time factors, I have to reluctantly pull out of this one. Thanks for your encouragement in the early stages.
  13. trekman
    This is great now. A big improvement on the first attempt.
  14. trekman
    My walker is walking, and I am just working on the weight shifting at the moment. I will try and post some photos. I actually wasn't even looking at videos of previous effort before I started mine.
  15. trekman
    I hope that this helps
  16. trekman
    If you could lower your pivot point slighly at the rear of the dump bed, this way the actuators would be pushing back as well as up. This does help in the initial start up of the lift. As presently the actuators are trying to push up from a near horizontal position.
  17. trekman
    I would fear that the weight of the beams alone, which make up the dump bed, have reduced the load that the actuators can tip. Also why do you have the two raised sections in the floor of the bed. Is that to make room for your L Motors powering the dump bed? If so, I would have repositioned the motors, and had a flat bed, and reused the panels (much lighter) on the sides of the dump bed.
  18. trekman
    If that is the shape of your main chassis, then I would say that you need to have a deeper frame, with more diagonal bracing. Look at the Technic Unimog, the designers there used diagonals to brace the top and bottom of the chassis to reduce flex. And it was only half the length of your truck. You need to understand a little more about beams and how they work. Loads are carried on the top and bottom flanges, they further apart they are, then a greater load can be carried -with minimal distortion. I hope it works out for you.
  19. trekman
    Hopefully the pneumatic cylinder will shift each leg at the ankle, and then I may be able to straighten the top part of the torso with another cylinder at the waist. The grey foot is the improvement with the cylinder added.
  20. trekman
    I present to you my effort in this competition. This will be a pneumatic walker, powered by a separate compressor. There will be a supply going to the pneumatic valves. These will create a sequence of eight movements at four cylinders, which should be enough to lift the legs and tilt the lower body. This is very much at development stage and will be added to until the deadline. I have a nice selection of pneumatics, which makes this contest quite appealing.
  21. trekman
    Lovely bike, the yarn system is slightly reminiscent of the old flex system, but you have infinite lengths available. The whole build is certainly thinking "outside of the box". Well done.
  22. trekman
    Now that is a lot of planning, work and detail. I especially like the lighting. Well done.
  23. trekman
    Interesting jeep, but would not be to my taste. You have managed to fit in the functions well.
  24. trekman
    http://www.brickshelf.com/gallery/mervyntomb/Arocs/dsc_6892.jpg I hope this helps.
  25. trekman
    I have six wheels which I seldom use, but still nice to have. There is no guarantee that they will hold their price at current levels. Just look at the thin 6L yellow lift arm https://img.bricklink.com/PL/32063.gif It was hard to get, with a few on the Power puller set only, and now they are placing them like €50 notes all over the New Mercedes Truck, as well as on the 2014 models. Be warned about the wheels!
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