 | | Re: LDraw coordinate system driving me crazy
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(...) Google uses the right handed system but indeed rotated by 90 degrees, LDraw also uses the right handed system but 180 degrees rotated. It should not matter how you show the model, the coordinates are interchangeable, but if you want to use (...) (19 years ago, 19-Nov-06, to lugnet.cad.dev)
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| | Re: LDraw coordinate system driving me crazy
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Tim Gould wrote: > It is still a right-handed system. The handedness is unchanged by rotation (in (...) So the original designer of the LDraw program just decided to use this orientation of the right handed system. if so then it starts making more (...) (19 years ago, 19-Nov-06, to lugnet.cad.dev)
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| | Re: LDraw coordinate system driving me crazy
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(...) That looks like a correct mapping to me. Unless I'm mistaken the red and orange are on the same sides in both pictures. The unwrapped boxes are definitely identical and unless you've moved them in one or the other the whole thing is right. Tim (19 years ago, 19-Nov-06, to lugnet.cad.dev, FTX)
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| | Re: Newbie question about old lego trains
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(...) Thanks for all the replies ! I found item x1688c01 (motor) and item 2868b (speed control), so would this be all I need ? Thanks for all your help. Rob. (19 years ago, 19-Nov-06, to lugnet.trains, FTX)
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| | Re: LDraw coordinate system driving me crazy
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Hi, Here's my box test model in SketchUp. (The above model is the same model unfolded.) (URL) When I export this model to a .dat and open it in LDView, the green side is the top-view, blue is the front view (as expected), and I would expect the (...) (19 years ago, 19-Nov-06, to lugnet.cad.dev, FTX)
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| | 100% LEGO Technic Clock with Electric Drive
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I've spent the past few days refining the design of my (URL) Technic clock>. I've managed to convert it to electric drive (using a 9V micro motor) which enabled me to get rid of the 2-lb. weight and string. This made it possible to further reduce (...) (19 years ago, 19-Nov-06, to lugnet.announce.moc, lugnet.technic, FTX) !!
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| | Re: iCommand 0.5 Setup/Test Problem
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Ok so today I just tried again (did nothing differently) and it all worked fine - cool! Connected PC to NXT, then ran the test prog from Eclipse and I was driving the NXT around the floor 5 seconds later. I suspect my problem was something to do (...) (19 years ago, 19-Nov-06, to lugnet.robotics)
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| | Re: LDraw coordinate system driving me crazy
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(...) In LDraw +z is backwards, not forwards or more strictly +Z points away from the camera when X is right and -Y is up. Tim (19 years ago, 19-Nov-06, to lugnet.cad.dev, FTX)
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| | Re: LDraw coordinate system driving me crazy
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(...) I've been having difficulty with importing/exporting .dat files from SketchUp. In SketchUp, if you stand at the Origin; X is right, Y is forward, and Z is up. The LDraw Primitives Reference ((URL)) says the LDraw axes are: X is right, Y is (...) (19 years ago, 19-Nov-06, to lugnet.cad.dev, FTX)
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| | Re: Legofest a Crema
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Ciao, io probabilmente ci sarò solo la domenica (e molto probabilomente solo al pomeriggio) ma solo come visitatore, infatti per vari impegni non ho avuto il tempo necessario per realizzare un robot, tutto sommato non possò garantire la mia presenza (...) (19 years ago, 19-Nov-06, to lugnet.org.it.itlug)
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| | Re: Nuovi set technic disponibili in USA
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A me hanno davvero stancato. A parte lo snowmobile il resto è tutta roba già vista e rivista. (19 years ago, 19-Nov-06, to lugnet.org.it.itlug)
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| | Re: LDraw coordinate system driving me crazy
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(...) It is still a right-handed system. The handedness is unchanged by rotation (in ldraws case 180*x from standard). Tim (19 years ago, 19-Nov-06, to lugnet.cad.dev)
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| | Re: Nuovi set technic disponibili in USA
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Marco Chiappa ha scritto: (...) Se devo essere sincero, a parte le ruote e i cingoli in questi mini set non c'è nulla che mi entusiasmi più di tanto, almeno nel vecchio escavatore si trovava il turntable che era utile... Aspetto il "Bimbo grande" (...) (19 years ago, 19-Nov-06, to lugnet.org.it.itlug)
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| | Re: The Brick Testament - All Hail King Saul!
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(...) Thanks, Martin. (...) That's great. I kind of do consider these King Saul and King David stories to be "the good stuff" in that they are exciting stories, full of intrigue and surprises. I've been looking forward to illustrating this stuff for (...) (19 years ago, 19-Nov-06, to lugnet.build.ancient, FTX)
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| | Nuovi set technic disponibili in USA
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Ai seguenti link trovate i nuovi set technic disponibili sullo S@H USA: 8270 Rough Terrain Crane (URL) 8271 Wheel Loader (URL) 8272 Snowmobile (URL) Nel set 8272 si notano i nuovi super cingoli... Ciao Marco (URL) (19 years ago, 19-Nov-06, to lugnet.org.it.itlug, FTX)
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| | Re: LDraw coordinate system driving me crazy
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As I understand it, LDraw has negative y in the up direction, which is neither right nor left handed, but something else entirely. I don't know that it has a name. James (19 years ago, 19-Nov-06, to lugnet.cad.dev)
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| | Re: Well that was fun...
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(...) Cool Vid. Congrats Dave. You're a natural!! :) I like it at the end where the hostess says the hottest toy that kids want... and they soon zoomed into the BSNF engine.... yup they had that right, not the Mattel toy they finished off on.... (...) (19 years ago, 19-Nov-06, to lugnet.org.ca.rtltoronto)
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| | Re: LDraw coordinate system driving me crazy
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(...) I've always understood it is: X positive is right X negative is left Y Positive is bottom Y Negative is top z Positive is back z negative is front In fact you can show this by adding a brick in MLCad and moving it around, watching how the X, Y (...) (19 years ago, 19-Nov-06, to lugnet.cad.dev)
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| | LDraw coordinate system driving me crazy
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Hello all, I'm having difficulties with the ldraw coordinate system. As fas I understood it it's Right handed, just like OpenGL. So X positive is right X negative is left Y Positive is top Y Negative is bottom z Positive is front z negative is back (...) (19 years ago, 19-Nov-06, to lugnet.cad.dev)
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| | Re: Time for a time-out from eBay
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(...) $70 brokerage for 200 dollars worth of Lego? (URL) This UPS table> must be either lying or is about something else, or is not giving the whole story... (starts Calculator) ... My crude calculation says that of your $70 "brokerage" only $37.6 (...) (19 years ago, 19-Nov-06, to lugnet.org.ca.rtltoronto, lugnet.market.shipping, FTX)
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