 | | 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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