 | | Re: OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle) [DAT]
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(...) Take the edge line: 1 2 -30 4 10 -3.69552 0 -1.53073 0 1 0 1.53073 0 -3.69552 1-4edge.dat Put it in a separate subfile. Include that subfile with no rotation matrix. Now apply a new MLCad rotation to the subfile. Finally inline the subfile to (...) (20 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | Re: OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle)
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(...) I think my interpratation from the last time was halfway there and this explains it much better so we're definitely getting somewhere faster now :). You should be able to use the formula I gave in the last reply instead of an XYZ+angle in (...) (20 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle)
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Well, I think I've tried to explain what I need to do 3-4 times already, which is where I think the language barriers have played a pretty big role... The reason I tried to cook the problem down, is to reduce confusion, but I guess that was a bad (...) (20 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | Re: Vehicle with square wheels
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(...) Right, Steve - keeping the wheels in sync may be the problem. You're onto something with the split in the chassis, though, and I thought of a three-wheeled version, where the front single wheel can pivot, like on a tricycle. I found this (...) (20 years ago, 6-Dec-05, to lugnet.technic, lugnet.robotics)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) Well, yes, but could you try generating these parameters in stead: location sky look_at angle These should be adequate to fully describe the camera. ldglite uses them (URL) I have already made a -csky option. My impression has always been that (...) (20 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: Vehicle with square wheels
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(...) I think one way to steer it is to split the robot in half, and twist in the middle. However, that will make it hard to keep the front and back wheels in sync. Steve (20 years ago, 6-Dec-05, to lugnet.technic, lugnet.robotics)
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| | Vehicle with square wheels
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I saw this linked on Slashdot: (URL) Allow me to cut through the inventor's verbosity and translate the concept: The square wheels are mechanically linked and turn in unison, but they're offset from each other. The weight at the top of the vehicle (...) (20 years ago, 6-Dec-05, to lugnet.technic, lugnet.robotics, FTX)
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| | Unsubscribing (ws Re: Design
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(...) Suggestion: Determine where your subscription is coming from. It could be coming from two places, since the list is gatewayed for obscure historical reasons. From the header page, (URL) : Note: The lugnet.robotics newsgroup and the (...) (20 years ago, 6-Dec-05, to lugnet.robotics)
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| | Re: Design
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(...) I had a question from a student the other day (I teach Biophysics at a university) who asked why engineering doesn't follow the same mechanism as evolution (if evoution works so well, why not emulate it?). The brief answer is becuse, for (...) (20 years ago, 6-Dec-05, to lugnet.robotics)
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| | Re: Implecations of 6 LEGO Units Thick Fence
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(...) (snip) (...) Oooh, thanks, Mat! later, James Mathis (20 years ago, 6-Dec-05, to lugnet.build.arch, lugnet.trains, FTX)
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