Work on new function and added M4

inserts.scad

@@ -3,6 +3,94 @@
 function is_die() = (!is_undef($die) && $die);
 function in_color() = (!is_undef($co) && $co);
 
+module insert_clear( 
+	bl=4,  // Bolt Length (under head)
+	bz=-4, // Bolt offset
+	bhd=6,
+	bhz=3.5,
+	bd=3.5, // Bolt hole diameter
+	fd=5.6,
+	fh=.5,
+	od=4.8,
+	il=3.81,
+	sh=0,
+) {
+
+	ic = in_color() ? "gold" : undef;
+	bc = in_color() ? "silver" : undef;
+	// Insert Body
+	translate([0,0,-fh]) color(ic) union() {
+		cylinder(d=fd, h=fh+.01);
+		translate([0,0,-(il-fh)]) cylinder(d=od,h=il-fh-sh);
+	}
+
+	// Bolt
+	color(bc) {
+		union() {
+			translate([0,0,bl+bz]) cylinder(d=bhd, h=bhz); // bolt head
+			translate([0,0,0]) cylinder(d=bd, h=bl+bz-sh); // bolt
+			translate([0,0,bz]) cylinder(d=bd, h=-(bz+il))  ; // bolt
+		}
+	}
+	
+}
+
+module m4s_clear( bl=8, bz=-3.81, bhd=6, bhz=3.5, sh=.2) {
+	insert_clear(bl=bl, bz=bz, bhd=bhd, bhz=bhz, bd=3.5, fd=5.6, fh=.5, od=4.8, il=3.81, sh=sh);
+}
+
+module m3s_clear( bl=8, bz=-4.7, bhd=7.5, bhz=4, sh=.2) {
+	insert_clear(bl=bl, bz=bz, bhd=bhd, bhz=bhz, bd=4.5, fd=6.35, fh=.5, od=5, il=4.7, sh=sh);
+}
+
+module insert_initeq(
+	bl=4, bz=-4, invertRim=false,
+	fd=5.5,
+	fh=.45,
+	rd=5.75,
+	rh=.8,
+	tdd=4.8,
+	tdn=5.15,
+	bdd=3.5,
+	bdn=2.9,
+
+) {
+	td= is_die() ? tdd : tdn;
+	th=(fh+2*(rh+.5));
+	ic = in_color() ? "gold" : undef;
+	
+	// Bolt
+	bd = is_die() ? 3.5 : 2.9;
+	bhd = is_die() ? 6.5 : 5.7;
+	bhh = is_die() ? 3.5 : 3;
+	bc = in_color() ? "silver" : undef;
+	
+	color(bc) {
+		translate([0,0,bl+bz]) cylinder(d=bhd, h=bhh); // bolt head
+		translate([0,0,bz-.01]) cylinder(d=bd, h=bl+.02); // bolt
+	}
+	
+	color(ic) difference() {
+		union() {
+			if (! is_die() ) {
+				// Grip Rings
+				translate([0,0,invertRim ? -(rh+th+.05) : -fh])
+					cylinder(d=fd,h=fh+.01);
+				translate([0,0,-(fh+rh+.5)]) cylinder(d=rd,h=rh);
+				translate([0,0, invertRim ? -(th) : -th]) cylinder(d=rd,h=rh);
+			} else {
+				// top bezel for die
+				translate([0,0,invertRim ? -(rh+th+.05) : -fh]) 
+					cylinder(d=5.6, h=fh);
+			}
+			
+			translate([0,0,-(3.9)]) cylinder(d=td,h=3.91);
+		}
+		if (! is_die()) // xxx: threaded hole stand in
+			translate([0,0,-3.95]) cylinder(d=2.9,h=4);
+	}
+}
+
 module thread_insertM3(bl=4, bz=-4, invertRim=false) {
 	fd=5.5;
 	fh=.45;