-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Yes, although I would place the size first, I think: > TDFN8-3X3-M065, as the pitch is given (not always, > but mainly) by package size and pin count. > Agreed. I only suggested the size after the pitch,, so that it would look nice in a list
DFN8-M065 TDFN8-M065-3X3 versus DFN8-M065 TDFN8-3X3-M065 Not much of an issue. > They do have a package, igesgump, that can be downloaded, > and it contains an IGES file peeker and a viewer (2D only), > but it was last changed in 2004, and they want USD5000 (!) > for the source code, so nothing interesting there ... > One of the torro-fecal things in life. I assumed that they must have the *cough* Lite *cough* version > I'll have a go at deciphering the IGES format - if we can > extract as a minimum a point cloud from IGES, we can use the > coords to get the correct dimensions of a package, including > details like mounting/guide pins, locking tabs and other such > stuff that's usually not specified in detail in the datasheets. > So then we could simply use the IGES files provided by molex instead of creating .dim files. I like where this is going. The yellow circles at the bottom represent the necessary holes in the footprint. I'll have a try at identifying those bits (proably by trial and error with Inventor). >>>> I don't know which will be easiest, as that depends on the >>>> available info on the file formats - probably not much :-( >> >> I thought that converting some faces from an *existing* model would be >> the easiest route. If we end up generating the models from Perl, we >> could include the metal piece in the middle of the hole, which, for some >> reasom, Molex seems to have overlooked. >> >> I say let's keep the focus on generating the footprints, those are the >> heart of the matter. The 3D packages can be added after the footprints >> are done. That is of course, if you have no preference on getting both >> ready at the same time :). >> >> Alex > > Having looked a bit more at the IGES files, I think the DIY approach is > the easiest, at least unless we can get hold of the full IGES specs :-( > > STEP is also a no-go - it's an ISO standard, and thus not free. > Even if we _did_ manage to write a STEP to VRML converter, we > probably couldn't release the source because of license issues :-( > Just when I was begining to think software patents can never possibly affect me. If we somehow did manage to write a Molex3DtoVRML, it wouldn't technically be a STEP to VRML converter; still troublesome, and then STEP is binary (I think). > The igespeek program (igesgump package from wiz-worx) lists these > entities in the IGES file for the two-pin, right angle Molex Microfit: > > count type description > 30 100:0000 Circular Arc > 5 102:0000 Composite Curve > 373 110:0000 Line > 9 120:0000 Surface of Revolution > 30 124:0000 Transformation Matrix:Right-handed (default) > 130 128:0000 Rational B-Spline Surface - <computationally derived> > 1 186:0000 Manifold Solid B-Rep Object > 3 314:0000 Color Definition > 2 402:0007 Associativity Instance:Unordered Group Without Back Pointers > 4 406:0015 Property:Name > 1 502:0001 Vertex:MSBO Vertex List > 1 504:0001 Edge:MSBO Edge List > 144 508:0001 Loop:MSBO Loop > 139 510:0001 Face:MSBO Face > 1 514:0001 Shell:MSBO Shell - Closed > > So, I'm pretty sure, that the missing package bits you (don't) > see are simply stuff that freecad can't do, and thus ignores ... > BTW, what do you run freecad on? Did you compile it, or got a built pakage? It won't compile on my Fedora machine, so I have to use a "that other OS" binary in a VM. > Colors in IGES are not RGB values, only indices - the standard colors are: > 0 = black > 1 = black > 2 = red > 3 = green > 4 = blue > 5 = yellow > 6 = magenta > 7 = cyan > 8 = white > In addition, there's a type 314 (Color > Definition), for redefinition of a color. > You are way ahead of me at understanding IGES. Alex -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJMer7hAAoJEL0kPHNPXJJK3zYP/jBFGA19Okkd/o0HqyOCP+HN dpq/hTcEpPgM8jZ0WXr1SruuYnNqjOi/AGyKj+UHQ32GNjgtGK2Me5OGcpBwrAC1 Zzkc8FaNWFO0QbIlnOTUwKcvamc8SySqOiz1TMUxH39EZMvxtaWUSjKS5ASe4BKL uZw+2bukrvv8lvw+HH2pZSY7O0Zp4iszZwl3vmmo5WmBQEQFVZ+2nGZifEPT2VbY uCY2SdzgkE9Y15B5ibPMupFIHjdEMaYjLtxAh+xRFGsHIEHjQIOFAIr9zcL2DCe8 P+Lv5+nMP6x831vkasTuLfK3tqgph69o3OPSgGnz2FsMiUxz/PeHjbJqfn+8R4M9 UwPALwEsDBZpDJNpLYm3Oz6DF6VnG5ayZoXLgimMHYWR0otIi5VHPAKPKHjgBnc6 2BQLg1Fd5QF+wolwM90sGKZl4uC46n1PPveiMdZ5+ctuZIrOVy4TNevdh2Ga9pml po4o1sjRQDKK558nviHMUE9iMKHFvxXBoD848wBMIbWFIFr1QSvc962Sondr8p8U rWyzTN6siz2kQO2SULqcNfCWl/9MLE6XHcf9VduN2/opaxrsd7JR5/e6cwCj/3RY MWo0mTht7KzBrhghD4m6o1P7+B+bwsUKUVS0QezzmR6DxcfKvtgA5XtL79bKuiiz /C21JeSJBh497x2CXZqJ =0Tgl -----END PGP SIGNATURE----- _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
