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Assign(h0=sh*j, h1=sh*(j+1/2), h2=sh*(j+1)) { for(i=[0:fn-1]) assign(lf0=lf*i, lf1=lf*(i+1/2), lf2=lf*(i+1)) { polyhedron( points=[ [ 0,0,h0], [ ord*cos(lf0), ord*sin(lf0), h2], [ ord*cos(lf2), ord*sin(lf2), h2] echo(" Knurled Surface Library v2 "); echo(" knurl_hg - [ 12 ] ,, Knurl's Surface Smoothing : File donwn the top edge radius circle_height = 1; // [0:No, 1:Yes] // 0 = A cylindrical knob, any other third party's Version); or c. Under Patent Claims of such.

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