 | | part 2951, more questions, nearly done [DAT]
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I'm having a few questions regarding the 2951 (it's a bucket or scoop) The round part is created using two overlapping cylinders, but due to the not quite roundness of these (16agons? :) I'm having some problems making it look right. Now, should I (...) (25 years ago, 12-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951, more questions, nearly done
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(...) I believe the prefered solution when encountering problems like this is to use as many of the circle and disc primitives as possible in a non-overlapping fashion, and then fill out the rest with polygons. (So my initial 2951 sketch uses the (...) (25 years ago, 12-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951, more questions, nearly done
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(...) ^^^^^^^ (...) Please replace "2-4cyli" with "1-4cyli" above. I goofed. :-) Fredrik (25 years ago, 12-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951, more questions, nearly done
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(...) (I corrected the above from 2-4cyli to 1-4 cyli:)) (...) In case this is legal (see below) I'll let a 1-4cyli connect to the back flat part and a 1-8 cyli connect to the front flat part and connect the two cylinders with a polygon. That way I (...) (25 years ago, 13-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951 [Off topic word usage]
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John Jensen write... (...) <Warning Type=Nitpick> I believe the word for 16 is Hex, thus a 16 edged (star?) would be named a Hexagon. Just thought I'd give you a name to use. Fredrik is much better in explaining what you asked for so I'll leave it (...) (25 years ago, 13-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951, more questions, nearly done
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(...) I think that would be perfectly ok. At least as long as you do the same thing with discs that connect to either end of the cylinder. (I hope you understand what I mean by this. If not, ask more!) Of course, with this approach, there may be a (...) (25 years ago, 13-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951 [Off topic word usage]
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Eric Hampusgård <purjo@hem.passagen.se> wrote in message news:Fo9tCB.FH2@lugnet.com... (...) A hexagon is 6-sided; I think a 16 sided polygon is a hexadecagon, but I'm not certain. -John Van (25 years ago, 13-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951 [Off topic word usage]
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(...) Yes, I think it is a hexadecagon too, but I thought I'd confirmed this in my dictionary once, but now it's not there ! Chris (25 years ago, 13-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951, more questions, nearly done [DAT]
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(...) Fredrick mentioned part 6222, the 4x4 round brick. This part was done just before the hi-res primitives were established. If it had been created after the primitives, it surely would have been written to use them. (...) Definitely use the (...) (25 years ago, 13-Jan-00, to lugnet.cad.dev)
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| | Re: part 2951 [Off topic word usage]
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(...) I too think it's hexadecagon or something like that, but had similar difficulty confirming it. I do know, however, that if you write or say "16-gon" in front of a typical group of mathematicians, not only will they know exactly what you mean, (...) (25 years ago, 14-Jan-00, to lugnet.cad.dev)
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| | Using parts in p\48\ (was: part 2951, more questions, nearly done) [DAT]
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In lugnet.cad.dev, Steve Bliss writes: --snip snip-- (...) the (...) -snip- (...) (I (...) exist (...) -snipalot- Hmmm I feared that much:) So I've just finished the calculations, and are about to punch numbers again:) BUT, there's one large problem (...) (25 years ago, 16-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) You could just replace 48\1-4cyli.dat with 1-4cyli.dat before doing the rotation, and then replace back again afterwards. That should work, shouldn't it? (...) This sounds ok to me. But then agian, I've been wrong before! ;-) (The technic seat (...) (25 years ago, 16-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) (or (...) Hmmm wouldn't that be postponing the problems? If LEdit doesn't want to load it from a regular dat file, why should it load it from a dat file within a dat file? (hopefully you know what I mean) (...) Awaiting others opinion then:) (...) (25 years ago, 17-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) No, sorry, I don't understand what you mean. Perhaps I misunderstood the original question? You needed to rotate a part with name 48\1-4cyli.dat in LEdit, right, and LEdit choked on the filename? The rotation matrix should be the same no (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) Ahh yes, but I also need to use the part that uses that primitive, and if LEdit won't load the primitive, then I can't use the part. Has noone ever used the \48\*.dat primitives? I count three in my directory, and if the policy is not to (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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John Jensen <skurt@vip.cybercity.dk> wrote in message news:FoJ43u.Gu@lugnet.com... (...) LEdit will load the primitive, it just chokes on the filename being in its editor. When you use the part, the primitive's filename won't be in LEdit's editor. (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) Fredrick was suggesting that you can use the low-res version of primitive in your file, rotate the primitive to the proper orientation, and then (using a text editor) change the filename to include the 48\. LEdit does not choke on parts which (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) Uhhh I see:) Well that explains my problems then. (...) Hmm Why to the segment? Or is the vague idea I have about inlining completely wrong? I think of it as a tool to put an unofficial primitive into the part file, e.g. by replacing a type 1 (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) I think what Steve Bliss meant was to use inlining as a tool _only_ to find out where to put the polygon spanning the final 7° of the curve. You only need to temporarily inline the last curve segment and check the coordinates of the polygon on (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) hmm okay, I simply calculated the coordinates, sine and cosine relations are our friends:) (...) Yes I will really have to look in to that, I might require some help setting it up, the only time I touched my .emacs file was when installing (...) (25 years ago, 18-Jan-00, to lugnet.cad.dev)
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| | Re: Using parts in p\48\ (was: part 2951, more questions, nearly done)
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(...) Sure, no problem. I prefer to inline and find the true coordinates of the polygons in the primitives, though. There may be some small rounding errors both in your sine calculations and in LEdit's, and if they don't match, you'll get small (...) (25 years ago, 19-Jan-00, to lugnet.cad.dev)
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