positive_dia = inch * 3/8. - 0.375;
positive_l = inch * 1/2.;
-positive_blank_dia = 9.0 - 0.5;
+positive_blank_dia = 8.12;
blank_l = 17;
blank_taper = 1.0;
wingnut_wing_xh = 5;
wingnut_wing_th = 3;
-$test= true;
-///$test= false;
+//$test= true;
+$test= false;
-//$fa= 3;
-//$fs= 0.2;
+$fa= 3;
+$fs= 0.2;
// calculated