IT LOOKS TREMENDOUSLY STRONG AND AGREE IT COULD BE USEFUL
On Thu, Apr 11, 2013 at 10:36 PM, Gregg Eshelman <g_ala...@yahoo.com> wrote: > This seems to have been recently scanned, found it on Wikipedia. Isogrid > hadn't turned up in my previous searches for this. > > Isogrid Design Handbook, NASA CR-124075, McDonnell Douglas, 1973 > http://femci.gsfc.nasa.gov/Isogrid/NASA-CR-124075_Isogrid_Design.pdf > > And skipping through a tone of theory, math, more math, lots more math and > other 'this is how we do it' stuff... > > Page 42 has the dimensions of the panels as used on Skylab! > > That would be so easy to have cut on a water jet. When were those > invented? I'd expect the originals to have been cut out with an NC mill, > which would've converted quite a lot of the plate to chips. > > --- On Thu, 4/11/13, jeremy youngs <jcyoung...@gmail.com> wrote: > > > From: jeremy youngs <jcyoung...@gmail.com> > > Subject: Re: [Emc-users] A project I want to do on a CNC mill > > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net > > > > Date: Thursday, April 11, 2013, 8:10 PM > > just get a picture with something of > > KNOWN size in it raster it in a vector > > program ( photoshop will do this ) import to autocad as dxf, > > measure known > > point to point divide known measurement by measurement made > > in autocad then > > rescale to the quotient . trim all but desired out of > > dxf . import to > > mastercam write program make :) > > now how to do this with all linux programs well i havent got > > there yet but > > when i do i will swear off bill gates forever:) > > note perpendicularity of the photo is very crucial to get > > accurate scaling > > this can be used with any photo sometimes to an accuracy of > > a couple of > > thousandths depending on perpendicularity and the accuracy > > of the known > > measured item > > > > > > On Thu, Apr 11, 2013 at 9:49 PM, Gregg Eshelman <g_ala...@yahoo.com> > > wrote: > > > > > I'd like to get the exact dimensions for the triangle > > pattern used in the > > > wall and floor panels of Skylab. Looks like there are > > round holes, possibly > > > threaded, where the triangle holes meet. > > > > > > Why that pattern? Because it's an interesting design > > and looks like it > > > could be useful for other purposes, especially if the > > round holes are > > > threaded. > > > > > > Anyone live near the Air and Space Museum? Would they > > allow someone in > > > with a digital caliper to take measurements? > > > > > > The only other places I know of that may have those > > panels are the two > > > Skylab simulators, if they were built to fully > > duplicate the two built for > > > launching. > > > ------------------------------------------------------------------------------ > Precog is a next-generation analytics platform capable of advanced > analytics on semi-structured data. The platform includes APIs for building > apps and a phenomenal toolset for data science. Developers can use > our toolset for easy data analysis & visualization. Get a free account! > http://www2.precog.com/precogplatform/slashdotnewsletter > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- jeremy youngs ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
