pleegwat

Eurobricks Citizen
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  1. pleegwat

    Updated motors comparison page

    Haven't we previously also seen in X-rays that the new L and XL have near-identical internals?
  2. pleegwat

    42056 - Porsche GT3 RS - Crash Test

    Or at least not as many of them. It being about modelling also explains C'T's involvement - it's a computer magazine.
  3. pleegwat

    42100 Liebherr R 9800 MODs

    If you're going to be using hubs, why not jump directly to the planetary one? Note if you use a portal hub, then the final drive still moves through a normal axle with associated deformation risks. In the stock model, the final 12-36 and 28-36 gearings are reinforced with pins. A quick check does confirm you can snap a hub onto a track wheel.
  4. pleegwat

    Gears-efficient gearbox

    When using rotary catches, the two sides of one selector are by necessity 180° apart, so you'd want 1 and 3 on one catch and 2 and 4 on the other. The pairing used here would be suitable if you wanted to make an 'H-shaped' manual gearbox, rather than a sequential one.
  5. pleegwat

    Gears-efficient gearbox

    @Touc4nxThat's just the 2*sqrt(2) distance.
  6. pleegwat

    42100 Liebherr R9800 Excavator

    I used smooth pebbles with my BWE and it worked much better than the lego pieces, at least partially because pebbles are much less bouncy.
  7. pleegwat

    42100 Liebherr R9800 Excavator

    The cylinders work in pairs, and the pairs couild share tubes which would move the minimum down to 2 tubes per pair. Lego models with paired pneumatic cylinders typically do this in some fashion, but I expect any real machine would control them individually for improved stability control. Some GIS gives me the impression the actual machine uses four hoses per cylinder - two at the base, and two in the middle (where the narrow and wide part slide between each other). On some cylinders, the hose to the midpoint of the cylinder runs along the cylinder itself, so all four connect to the base of the cylinder first.
  8. pleegwat

    42100 Liebherr R9800 Excavator

    First we're afraid of not enough gears in this set, now we're complaining there's too many?
  9. pleegwat

    Technic 2020 Set Discussion

    Could also be a complex pneumatic set.
  10. pleegwat

    Effe's MOC Corner

    Damn, how many 3x11 white panels are in that? I've only got 7.
  11. pleegwat

    42110 - Land Rover Defender

    Doing a mini engine style would be relatively easy since you just have to align the 2l beam which pushes up the cylinder. If you use the standard pulley wheel (with 6 holes at 60° separation) you could put it between cylinders and get 1.5 studs per cylinder for a slightly larger mini-engine. A full engine would be trickier since it needs to be rigid, and you need a full stud of axle for the piston to move on. All I can think of offhand (based on the tri-axle connector) quickly pushes you toward 3 or more studs per cylinder. And I think I only own two tri-axle connectors anyway.
  12. pleegwat

    42110 - Land Rover Defender

    @kbalage mentions in his video that the engine runs a bit irregular - I think that's probably unavoidable in a 6-cilinder micro engine as there is more load from the engine when it's pushing up a cylinder, and it's not pushing up cylinders at a constant rate (1, 1, 2, 2 or 1, 2, 1, 2 every 90°, rather than 2 every 120°). It would be interesting to see if we can come up with a fix for that.
  13. I've certainly seen various brick sorting machines pass by on youtube over the years. Particularly sorting axles or beams on length is straightforward to do mechanically.
  14. pleegwat

    Axle Collection Thread

    I think this is 13 studs? Designed for a daf YA-328 moc that never really got off the ground. I'm not too happy with it. The worm gear drive requires motorization to work at all which I'm not sure if I've got the room for, and since the connection between the two sides is an axle it sags all kinds of wrong. My solution for the front axle (not pictured) is even worse.
  15. I hadn't even considered keeping it out entirely. I guess it may be giving some counter-force to keep the differential in place as it turns, but then why didn't they do the same at the front axle?