Added model for Z rod coupler.

full_assembly.scad

@@ -17,6 +17,7 @@ use <xy_sled_part.scad>
 use <z_platform_joint_part.scad>
 use <z_sled_part.scad>
 use <extruder_mount_part.scad>
+use <z_rod_coupler.scad>
 
 
 
@@ -40,9 +41,13 @@ module full_assembly()
 			zrot(90) motor_mount_plate();
 			translate([0, 0, 5.9+rail_thick]) {
 				nema17_stepper(h=34, shaft_len=20.05);
-				translate([0, 0, lifter_rod_length/2+40]) {
-					color("silver")
-						cylinder(h=lifter_rod_length, r=lifter_rod_diam/2, center=true);
+				translate([0, 0, 30]) {
+					color("DimGray")
+						z_rod_coupler();
+					translate([0, 0, lifter_rod_length/2]) {
+						color("silver")
+							cylinder(h=lifter_rod_length, r=lifter_rod_diam/2, center=true);
+					}
 				}
 			}
 		}

z_rod_coupler.scad

@@ -0,0 +1,80 @@
+include <config.scad>
+use <GDMUtils.scad>
+use <joiners.scad>
+
+
+module z_rod_coupler()
+{
+	h = 50;
+	shaft = 5.2;
+	setscrew = 3.2;
+
+	color("Lavender") difference() {
+		// Coupler cylinder.
+		cylinder(h=h, r=12, center=true);
+
+		translate([0, 0, -(h/4+1)]) {
+			difference() {
+				// Stepper shaft hole
+				cylinder(h=h/2, r=shaft/2, center=true, $fn=16);
+
+				// Shaft flat side.
+				translate([1.4*shaft, 0, 0])
+					cube(size=[shaft*2, shaft*2, h/2+1], center=true);
+			}
+
+			//Stepper set screw
+			translate([5/2+2, 0, -(h/4-7.5)]) {
+				yrot(90) {
+					// Nut Slot
+					translate([0, 0, 1]) scale([1.1, 1.1, 1.1]) hull() {
+						metric_nut(size=3, hole=false);
+						translate([10, 0, 0])
+							metric_nut(size=3, hole=false);
+					}
+
+					// Set screw hole.
+					translate([0, 0, 2.5])
+						cylinder(r=setscrew/2, h=12, center=true, $fn=8);
+				}
+			}
+		}
+
+		translate([0, 0, (h/4+1)]) {
+			// Lifter rod hole.
+			cylinder(h=h/2, r=lifter_rod_diam/2+0.2, center=true, $fn=24);
+
+			//Lifter rod set screw
+			translate([5/2+3, 0, (h/4-7.5)]) {
+				yrot(90) {
+					// Nut Slot
+					translate([0, 0, 1]) scale([1.1, 1.1, 1.1]) hull() {
+						metric_nut(size=3, hole=false);
+						translate([-10, 0, 0])
+							metric_nut(size=3, hole=false);
+					}
+
+					// Set screw hole.
+					translate([0, 0, 2.5])
+						cylinder(r=setscrew/2, h=10, center=true, $fn=8);
+				}
+			}
+		}
+	}
+}
+//!z_rod_coupler();
+
+
+
+module z_rod_couple_part() { // make me
+	z_rod_coupler();
+}
+
+
+
+z_rod_couple_part();
+
+
+
+// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
+