inkscape makes this easy in Linux. with the gcodetools extension, producing
the g-code is a snal too.
Walt
On Apr 11, 2013, at 10:10 PM, jeremy youngs jcyoung...@gmail.com wrote:
just get a picture with something of KNOWN size in it raster it in a vector
program ( photoshop will do this )
On 04/11/2013 11:20 PM, Gregg Eshelman wrote:
The radius of the points of the triangles is given as 0.228 inch
I read it as 0.22R, which is almost exactly half the 0.438 DIA given
for the holes. Using 0.438/2 would be Close Enough, methinks.
That'd be fun to construct on a 3D printer... one
On Friday 12 April 2013 13:40:54 Ed Nisley did opine:
On 04/11/2013 11:20 PM, Gregg Eshelman wrote:
The radius of the points of the triangles is given as 0.228 inch
I read it as 0.22R, which is almost exactly half the 0.438 DIA given
for the holes. Using 0.438/2 would be Close Enough,
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
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
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
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
I've found an error in one of the dimensions. The radius of the points of the
triangles is given as 0.228 inch but that's impossible with the diameter of the
holes at 0.438.
Fitting a 0.228 radius tangent to the 0.070 thick bars makes it intersect the
holes. Oops! Someone didn't sanity check
