 | | Re: Another matrix inverse question (and answer?)
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(...) I think I just answered my own question. I applied the inverse rotation (calculated by swapping the off-diagonals) to the translation row of the original transformation and then negated it to get the translation row in the inverse. That worked (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: 10183 Hobby Train instuctions
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(...) Very interesting. I'd like to hear more details. I haven't got my sets yet (but I think they might be downstairs in the building office - I just need to be going by when someone is there), but the order emails list the instructions as separate (...) (19 years ago, 11-Apr-07, to lugnet.trains)
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| | Re: Another matrix inverse question
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(...) I can see the advantages of swapping the off-diagonals for inverting the rotation(s), but that still leaves the question of how to invert translations. In a current example I'm looking at, a minifig hand, the hand is rotated 45 degrees, (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: 10183 Hobby Train instuctions
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(...) All 30 or just the main model? I thought printed instructions for the main model were included with the set? ROSCO (19 years ago, 11-Apr-07, to lugnet.trains)
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| | Honolulu Chinatown building MOC
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Hi all, I've pretty much completed my first MOC of a building from Honolulu's historic Chinatown. (URL) More pictures are in the (URL) gallery> Located at the NE corner of King Street and Nuuanu Ave, this building houses the Home Street Bank. Some (...) (19 years ago, 11-Apr-07, to lugnet.town, lugnet.announce.moc, FTX) !!
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| | Short reply Beware Re: Variety is the spice of life
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Tommy, Todd, Tim and everyone else: I've snipped off the stuff from the beginning--it makes for too long a read. Apologies to all in advance. I agree with you all. It's tough to maintain a set color palette forever, and the UV shift over time can be (...) (19 years ago, 10-Apr-07, to lugnet.color, FTX)
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| | Re: Another New NXT Utility
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(...) Your wish is my command! I've uploaded a spiffed-up version of the utility which includes 4 little buttons. Pressing them does what you might hope it would. I've also uploaded a new test_release.zip containing a version of BricxCC with this (...) (19 years ago, 10-Apr-07, to lugnet.robotics.nxt)
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| | 10183 Hobby Train instuctions
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A UK AFOL has reported that he has recieved printed instructions for this set after ringing up Lego. Tim (19 years ago, 10-Apr-07, to lugnet.trains)
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| | Long reply Beware Re: Variety is the spice of life
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(...) There are very few things in life that I can consider myself as an expert, but the one thing is color matching and quality control of color in a manufacturing process and at the point of purchase. For 30 years I worked in a small paint (...) (19 years ago, 10-Apr-07, to lugnet.color)
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| | Re: Another New NXT Utility
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(...) (19 years ago, 10-Apr-07, to lugnet.robotics.nxt)
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