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ludov

Eurobricks Knights
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Everything posted by ludov

  1. ludov
    Another crane, must be crane season I'm very curious to follow this; the previous version was already impressive, so this is surely going to be awesome. What are the rubber bands for on the bottom? And why does the engine only run when you lower the outriggers, and not the other functions? @Erik Leppen: I'm certain I've seen this steering mode switching mechanism somewhere else before. Not sure where though. @Jeroen Ottens, was it in one of your previous models?
  2. ludov
    Very nice! Are you building this one from top to bottom, instead of starting from the hull? Or did I miss something?
  3. ludov
    Cool I was never aware of this nonlinearity myself until the demonstration by @aeh5040. I tried it myself, of course, and since then I always catches my eye if I see them. Can't help it
  4. ludov
    Why would that make the module longer? Just rotate one of the joints 90 degrees along it's longitudinal axis.
  5. ludov
    I mean the two U-joints that are linking the counter wheel to the long axle that runs along the module. They're in view on the right-hand side of the video at around 3:49 mark. If you align the "slits" in the joints on one axle, the power transfer is significantly more smooth. @aeh5040 has a really good demo to demonstrate this effect:
  6. ludov
    Very very cool. Your GBCs are always very interesting and well executed. As others mentioned, the modules are visually pleasing too. I wonder if the wheels would turn more smoothly if you'd align the U-joints at the counter wheel. Have you tried?
  7. ludov
    Wow, it looks amazing!Looking forward to more photos. And maybe instructions?
  8. ludov
    Very nice tractor! Very compact! I'm wondering if the steering solution is not redundant? The linkage that goes from the left to right would make the wheels turn in unison no? Due to the Ackermann geometry, wouldn't the inner turn more than the outer, which would conflict with the rack motion, no? Or is there enough slack to absorb that? I think having one steering rack would look cleaner
  9. ludov
    Ah, I missed the pin with pinhole, this render is easier to see how it fits together. I just order some of the new worm gears, so I’ll give it a try!
  10. ludov
    Nice progress! I like the compactness of the outrigger feet, but am I seeing correctly that the 7M gear rack has no support? Does it skip? What is the tan gear for on the superstructure? I don't recall it's function... I'm looking forward to see your progress. Especially when you start putting things together. I hope the suspension holds up; have you tested it yet?
  11. ludov
    Cool, I'll be following this again. I assume tugs never get boring for you, do they?
  12. ludov
    This is very cool! Obviously well engineered and I bet a lot of fun to play with I'm amazed it can actually harvest. The photo's and video explain very well how everything works. I particularly like how the conveyor lift mechanism locks the engage switch. The ball joint connector is a good find and a lot easier to connect than the regular PTO. Thanks for sharing!
  13. ludov
    Wow, that's a lot of update! I really like the 2-stage outriggers, I don't recall seeing that before. I assume that the lowering will also be manual? The drive axle under the axles seems very fragile, are you sure you want to go that way? I think you can do better As for the superstructure: How about putting the gearbox like in 42009? It seems it can fit where in the second version is now a rather long light-grey 7L(?) axle running form the motor. You can distribute the slew function and the function going through the turn table (outriggers?) from the gears on the motor side, and the others from the "far" side. There might still be a problem with the length of the cable though... (I need to get back to my outriggers... )
  14. ludov
    I can't wrap my head around the fact all those things are powered by the trains themselves... it all runs so smooth. Incredible!
  15. ludov
    I got sidetracked and built a new type of outrigger: It's one stud higher and one stud thicker than the other design, but it allows to be controlled from a central control, if i can manage to squeeze it in somehow... I foresee a v3.0 of the chassis... I hope I'm not being too ambitious here...
  16. ludov
    I'll be following this I'm very much into cranes lately I think it's an excellent decision to go for a studded frame: the strength of those beams are underrated. The odd/even thing will add complexity of course, but surely you can manage. Have you considered putting the springs horizontal, parallel to the frame, and use a L-shaped liftarm to transfer the spring force? I've been playing around with that idea for a while to get a nice, "flat" suspension, but haven't been able to come up with something yet that is sufficiently robust... @dikkie klijn seems to have something like it on his FTF FS-20, but the photo's are not enough for me to figure out how it works.
  17. ludov
    Finally! I've been waiting to see this one finished, will follow with interest!
  18. ludov
    Thanks! You're right about the cabin: the other day I was playing around in LDD trying to fit some seats in, when I realized it's too tall. The windshield is at least a stud too high with respect to the rest. I will try to fix that; should be fairly easy without having to redesign everything. You asked about the outriggers before, and I forgot to answer: they're really simple... The current implementation has the outriggers extend outwards just by pulling on them by hand. They gear rack rolls on the 8-tooth gear that you see sticking out in the front. It turns on a friction pin, not connected to anything else since there's no space left in the bottom part of the frame. The lowering of the outriggers is done with the mechanism that's on the Arocs and also on 8053. Indeed via the red bushes. You're giving me way too much building credit On the bike earlier today I was thinking though that I can maybe swap the gear rack upside down and maybe have an axle running through the upper part of the frame somewhere so that at least left and right are in sync, perhaps controlled via a gear or something. The exhaust stacks are for the steering; left and right are linked since there will be a boom in the middle.
  19. ludov
    Time for a much overdue update... I considered @Ivan_M's suggestion, but it took too much vertical space, so I went for @M_longer's suggestion of making the spacing the axles 6.5 studs. In the end though, I had to rebuild the entire frame. Removing the horizontal 7M beams that were holding axle 2 and 4 meant losing some connection points and it took me a while to work around that. Of course, as I was doing that, I found a lot of other things that could be improved as while, which made me take even longer. But the result was worth it: Look at that steering lock I also redesigned the bodywork as per @Jeroen Ottens suggestion using the 3x7 panel and a beam. It looks really good, I think: Next steps: Order a few steering parts from Bricklink, as I don't have enough of them. Maybe also some panels, since the yellow ones I have are from the 42009 Mobile Crane MkII, which means most of them have stickers on them and I don't know how easy they'll come off... Disassemble my Claas set to get some much needed parts Finish the undercarriage Start with thinking of the actual crane... Comments welcome!
  20. ludov
    I'm guessing @Berthil means to refer to Parax77, although you can't see anything in the video below: I think @nico71 is explaining the same principle here. I don't speak any French, but it's easy enough to follow:
  21. ludov
    Super cool! I loved this show as a kid and still watch re-runs occasionally. Very well executed!
  22. ludov
    Very very nice The exhausts look better than I thought from the previous pictures I'm sure the customer will be very happy!
  23. ludov
    Thanks for all the feedback, very helpful! This is a good observation. I like the different steering angles, so I'd like to keep it. I'm afraid that using a 1L steering arm will restrict the motion just as much as it is now... I'm still trying to figure out the crab steering that you added to your 5-axle crane (the topic just resurfaced earlier today). I still have much to learn. I've played around with that when I saw it in a build from @Erik Leppen (http://www.erikleppen.nl/lego/bouwinstructies/vrachtwagens/enforcer.php). His approach would allow to implement different steering angles also by longer arms, but it seems (at least, from this picture) that alignment is a bit of an issue (the wheels show some toe-in/out due to the steering links not being "in system"). I will probably try again in a future build when I'm more confident in my building, but for now I think that increasing the spacing by half a stud (as suggested by @M_longer) is the best way to not overcomplicate things : (From top to bottom: 6, 6.5 and 7 studs spacing) I think it looks nice; will try building it to see how it looks "in the brick". I don't know how I missed the 3x7 panel (assuming you mean this one). Finding panels in LDD is always a challenge for me It seems a perfect fit. I'll try to rework the engine compartment with this panel. Thanks for the tip!
  24. ludov
    Beautiful!! Nothing more to say
  25. ludov
    This is a good idea. I can use this part to create the half-stud offset quite easily: Didn't think of that. I'd need to order them though, since I only have two of them, so I'll first prototype it in LDD. Yes, there's room for a small V8 engine. I prototyped something in LDD, but I'd first need to build it to see if it will work properly. Thanks for all the comments!
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