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(...) Comparing relative sizes with some of my son's Duplo bricks last night, it looks like the Duplo studs are a little shorter in height than two Lego studs. A couple questions about detail - Duplo bricks all have a circular depression on the top (...) (24 years ago, 27-Dec-00, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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(...) And the walls of the bottom tubes are certainly not twice as thick as on System parts. Note that the studs fit great between the bottom tubes, but they don't bind *at all* when placed inside the tubes. There is another type of stud that fits (...) (24 years ago, 28-Dec-00, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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(...) I should have said the Duplo studs are a little _taller_ than two Lego studs. The number I came up with is 2.4 times the height of a lego stud. (...) I made up a 2x2 Duplo trial last night. I used the same wall thickness as Lego bricks (4 (...) (24 years ago, 28-Dec-00, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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(...) Skip this. (...) Skip this as well. POV-Ray versions may include it. Steve (24 years ago, 2-Jan-01, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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(...) As you noted, the logo should not be included (in LDraw). (...) So far, the flattened corners have been skipped on System-scale parts. Do the flattened corners deviate from a true circle by more than 1 LDU? If they do, then that adds weight to (...) (24 years ago, 2-Jan-01, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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[this should go to either lugnet.cad.dat.parts...rimitives, or lugnet.cad.dev, but tight is the grip of inertia...] (...) That seems a bit thin for the walls. I'll dig out some DUPLO bricks, and look at them more closely. (...) Hmm. That's a height (...) (24 years ago, 2-Jan-01, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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... (...) Regarding this and the wall thickness, I don't have an instrument to accurately measure. I actually scaled the model up on my computer screen until the body matched, then compared the stud height,holding a brick to the screen. I'd love it (...) (24 years ago, 3-Jan-01, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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(...) Take a 3001 (Brick 4x2) and put a 3437 (Duplo Brick 2 x 2) on top. The 3001's studs end at 4 LDU from the edge, and The Duplo brick fits perfectly well on top, and it ends where the 3001 ends. So the Duplo wall must be exactly 4 LDU. Also note (...) (24 years ago, 4-Jan-01, to lugnet.cad.dat.parts)
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| | Re: Duplo parts?
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In lugnet.cad.dat.parts Steve Bliss wrote... (...) Yup... :) (...) There is: Primitive substitution! I found out that we (mis)use stud4.dat by scaling its height by 5 in bricks! (and other factors in other parts) If I add a rounded edge to (...) (24 years ago, 4-Jan-01, to lugnet.cad.dat.parts, lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Re: Duplo parts?
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(...) No, it's correct. If they were thicker, you wouldn't be able to put Duplo bricks on top of System bricks. (...) The stud height has changed over the years. The newer ones are quite close to 11. I haven't checked the older ones that closely. (...) (24 years ago, 5-Jan-01, to lugnet.cad.dat.parts)
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