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    Thread: Technic 2020
Post: RE: Technic 2020

Orion Pobursky Wrote: (2021-10-22, 23:18) -- Nice. One nit I noticed right from the render: you're using black (0) instead of rubber black (256) for the tyres. -- Where do folks stand on rubber ...
N. W. Perry Official Models 25 7,919 3 hours ago
    Thread: Part Snapping missing/errors
Post: RE: Part Snapping missing/errors

I can't tell if this is a bug or a feature, but I noticed some studless Technic beams were missing their axlehole snaps. I figured out that this was because they use axlehole prims with unofficial upd...
N. W. Perry LDraw Editors and Viewers 103 27,562 2021-10-22, 4:38
    Thread: Suggestion: New Meta 0 !YEAR
Post: RE: Suggestion: New Meta 0 !YEAR

Max Martin Richter Wrote: (2021-10-11, 15:05) -- Hi, While reviewing I came across some parts with Type 1 and Type 2 as description qualifier. As we can surely describe the differences it's for s...
N. W. Perry Official File Specifications/Standards 2 180 2021-10-11, 16:48
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

I made a diagram in GeoGebra (https://www.geogebra.org/calculator/qhfxegdw) in order to model this problem. I'm not sure it's possible in that program to include all the constraints I want (for exampl...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-10, 22:48
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Roland Melkert Wrote: (2021-10-09, 20:28) -- I made an animation to help me visualize it, see attached zip. Determining if the stop has gone to far is relatively easy. So I'm thinking the solut...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-10, 1:47
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Another element that’s probably important is that the BE is the hypotenuse of a triangle whose height is 20 (because of the offset shape of the shock absorber) and whose other leg is the B vector that...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-09, 17:52
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Roland Melkert Wrote: (2021-10-08, 21:35) -- While trying to put this in lua I realized it won't work because you don't know the distance of A to the E'D vector (call it X). Without that you can't...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-09, 3:16
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Roland Melkert Wrote: (2021-10-08, 7:16) -- I think the key is in the ced triangle. If you adjust it so e is parrallel to d distance to the shock center wise. Like so: Then find the distan...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-08, 17:04
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Travis Cobbs Wrote: (2021-10-07, 23:40) -- As far as I can tell when looking at the model IRL, the fact that the gray liftarm has divots in the side is critical to this working. The gray stopper piec...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-08, 2:49
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Philippe Hurbain Wrote: (2021-10-07, 12:10) -- Note that IRL the radius of "modern" beam ends is closer to 9.2 ldu. For this old design, it's even larger, around 9.8 ldu. -- Which would make the mi...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-07, 23:00
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Orion Pobursky Wrote: (2021-10-07, 2:28) -- Really? I'm usually super diligent about avoiding collisions at all costs. This is why there's still an 8448 variant I haven't finished since the math gave...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-07, 2:48
    Thread: Technic 1994
Post: RE: 8880 - Super Car

Orion Pobursky Wrote: (2019-04-04, 19:05) -- 8880 - Super Car OMR Compliant Missing: Nothing Comments: I chose this model specifically to challenge me to use LDCad fully. I consider myself challe...
N. W. Perry Official Models 29 18,529 2021-10-07, 2:36
    Thread: My Technic math puzzle of the day
Post: RE: My Technic math puzzle of the day

Orion Pobursky Wrote: (2021-10-07, 2:02) -- I evidently solved this problem with the 8880 in the OMR. Maybe you can look at that for clues? -- The OMR model keeps the control arms horizontal, so th...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-07, 2:18
    Thread: My Technic math puzzle of the day
Post: My Technic math puzzle of the day

I haven't posted one of these for a little while (because I've learned so much already from previous ones), but here's my latest Technic math puzzle, from the 8880 Supercar: Consider the suspension...
N. W. Perry LDraw Editors and Viewers 18 519 2021-10-07, 1:52
    Thread: Part Snapping missing/errors
Post: RE: Part Snapping missing/errors

Roland Melkert Wrote: (2021-10-01, 19:21) -- optimally it would need a new snap connection (sphere in a tube), but I'm not sure it would really be that more helpful. -- I was thinking of something ...
N. W. Perry LDraw Editors and Viewers 103 27,562 2021-10-01, 20:07
    Thread: Part Snapping missing/errors
Post: RE: Part Snapping missing/errors

Roland Melkert Wrote: (2021-10-01, 18:24) -- Seems logical, acting like a compact universal joint like in real cars. -- Hey, they more possibilities, the better! Will the snapping data depend on...
N. W. Perry LDraw Editors and Viewers 103 27,562 2021-10-01, 18:46
    Thread: 1980's and 1990's Town and Trains
Post: RE: 1980's and 1990's Town and Trains

By the by, and not that it matters at all, but "OMR conform" isn't really English—you would say "Conforms to OMR" or "OMR conformant". (But "conformant" is an awkward word so you might prefer "complia...
N. W. Perry Official Models 123 53,472 2021-10-01, 17:20
    Thread: Use an External File as a Reference for a Subfile in LDCad?
Post: RE: Use an External File as a Reference for a Subf...

G.D. Grant Wrote: (2021-10-01, 13:55) -- Yes... The model remains external, and that's exactly what I wanted, as you guessed. Mr Melkert's solution solves this perfectly. Cheers. :) -- G. D. G...
N. W. Perry LDraw Editors and Viewers 6 209 2021-10-01, 17:14
    Thread: Part Snapping missing/errors
Post: RE: Part Snapping missing/errors

Magnus Forsberg Wrote: (2021-10-01, 15:24) -- Is it possible, and maybe even wanted, to have 2907 snap to the inside of the hub 2999 ? -- Good question…I am not fortunate enough to have owned the s...
N. W. Perry LDraw Editors and Viewers 103 27,562 2021-10-01, 17:10
    Thread: Part Snapping missing/errors
Post: RE: Part Snapping missing/errors

Max Martin Richter Wrote: (2021-10-01, 7:54) -- The hub is free movable in the arm without the wheel. But it should snap to its final position in LDCad, I think. The wheel can be connected in one wa...
N. W. Perry LDraw Editors and Viewers 103 27,562 2021-10-01, 17:05