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aeh5040

Eurobricks Knights
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Everything posted by aeh5040

  1. aeh5040
    I'm a bit confused why you would want to do that. The "clutch" only slips if you try to drive the actuator beyond its end stops (I believe). If you are doing that then without the clutch you will just stall the motor or break something.
  2. aeh5040
    I'm sure considerations like this are relevant to TLG's strategy. If it was 50% bigger, many parents who could afford it would baulk at the size.
  3. aeh5040
    Just wait a few months until the parts are readily available and there are fan-designed instructions!
  4. aeh5040
    It's interesting how these two frame types are used. They seem to be assembled with a 1-stud offset into individual box sections, which are then joined together using axles. I guess that is perhaps reflective of the real thing? Of course the boom would be much stiffer if they were offset by more like half their length.
  5. aeh5040
    So 4 functions meaning 2 directions for each of the claw and the dumper? Or do you have more functions in mind? I'm also curious how will picking up an item will work while driving along. Will it just push the item along for a bit until the claw starts to lift?
  6. aeh5040
    Interesting! I imagine alignment with the racks will be tricky. Perhaps it needs some sort of horizontal guides.
  7. aeh5040
    Nice. Can we see some close up photos?
  8. aeh5040
    +1 for Prusa. I have a MINI and love it. And they come across as a really thoughtful company that cares about its customers (including novices).
  9. aeh5040
    I suspect the more crucial thing here is that they are easier to align correctly.
  10. aeh5040
    For the weights, I think the best arrangement is a continuous loop of chain, with a self-winding mechanism in the weight: the weight consists of a battery box and motor and switch, which crawls up the chain to the top when it hits the ground... Like in this one: https://ideas.lego.com/projects/5f13f0c2-284c-4cb2-b649-f554f29e1514 https://flic.kr/p/H9Wvnk
  11. aeh5040
    Brilliant!
  12. aeh5040
    Looks like a very neat and capable build!
  13. aeh5040
    From the pictures of 42157 it looks as if the distance between the holes is 5 *along the diagonal* because there is an alternating liftarm running along there, so that they would not be in-grid. It would be pretty difficult to distinguish 5 and sqrt(5*5+1*1)=5.1 from the picture.
  14. aeh5040
    There is a tapered slot on the underside made with two bionicle teeth. When the lever is moved into turn-in-place mode, the slot captures a connector on the bottom of the lever, forcing the knob into its central orientation. It's a beautiful mechanism! The only other set I'm aware of with such a sophisticated steering mechanism was 42054. I think this one is in some ways even better.
  15. aeh5040
    The more I see the more I like! This looks like a great set. It's clear from the labels that the two steering modes are indeed controlled from the same lever, by pushing it back and forward and by rotating it. I can't tell whether there is some mechanism to lock the rotation into the central position when in turn on the spot mode (which would be cool). It also looks as if the two axes of movement of the arm are both controlled remotely via some mechanism. And finally the suspension looks very interesting. The bar on the top seems to link the two sides, while two of the three wheels on each side have their own additional pivot. And nice wheels, and lots of new or rare parts in white as well!
  16. aeh5040
    Yes, this looks like a very useful part.
  17. aeh5040
    One way to increase the torque it can handle is to trap the wheels between two discs which are held together.
  18. aeh5040
    Right. So perhaps "rocking" the lever into one position forces the two sides into their extreme positions for turn-in-place mode, with no rotation of the gear possible, while with the lever in the other position we can rotate the gear for normal steering. That would be a nice control mechanism!
  19. aeh5040
    No idea, but on the plus side, if you want motorized wipers....
  20. aeh5040
    Great job. There really was a lot of empty space in that model!
  21. aeh5040
    Why not just attach the ring rigidly to the axle and forget about the two 28t gears? Any technic gear will mesh with the ring gear, but the spacing needs to be correct. A simple case would be the 12t gear, which will work 1 unit closer to the ring gear than what you currently have.
  22. aeh5040
    Very interesting! I'm amazed the the gyro holds its orientation for so long.
  23. aeh5040
    This looks like a good idea. As a variation, the chain itself could be built out of liftarms (in various ways), potentially providing a stronger basis to attach the discs to. Thanks for the post. It would be nice to see more discussions like this. Someone asks an interesting technical question, then lots of people chip in with ideas. I feel like there was more of this in the past (OK "good old days" rant over!)
  24. aeh5040
    Thank you for the kind remarks and the suggestion. I'll look into that. Sometimes I find I miss things when they are in such a thread, though, because I don't realise there is a new model. Perhaps the solution is to have a general thread and also one for each model, but perhaps that is too much duplication?
  25. aeh5040
    Thank you for all the kind words folks! Mindstorms would be cheating! (Just kidding - I'm very impressed by the things people do with it, but I am obsessed with doing everything mechanically). Many thanks! I'm curious what you mean by "reduced the motion to a minimum"? My general philosophy is to make everything as simple as it can be, and no simpler (while achieving the intended goal), but I'm not sure whether that's what you are referring to...
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