/usr/share/openscad/libraries/MCAD/units.scad is in openscad-mcad 2014.03-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | /*
* Basic units.
*
* Originally by Hans Häggström, 2010.
* Dual licenced under Creative Commons Attribution-Share Alike 3.0 and LGPL2 or later
*/
mm = 1;
cm = 10 * mm;
dm = 100 * mm;
m = 1000 * mm;
inch = 25.4 * mm;
X = [1, 0, 0];
Y = [0, 1, 0];
Z = [0, 0, 1];
M3 = 3*mm;
M4 = 4*mm;
M5 = 5*mm;
M6 = 6*mm;
M8 = 8*mm;
// When a small distance is needed to overlap shapes for boolean cutting, etc.
epsilon = 0.01*mm;
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