modelling rough plotter head for printing

models/plotter_head.scad

@@ -0,0 +1,38 @@
+notch_width = 2.5;
+
+module peg_hole() {
+    union() {
+        difference() {
+            union() {
+                cylinder(h=21.5,d1=7.8,d2=7.2,center=false);
+                // Chamfer
+                cylinder(h=1,d1=8.2,d2=7.8,center=false);
+            }
+            translate([2.5, -5, -0.1]) {
+                cube([10,10,30]);
+            }
+        }
+        translate([0,-notch_width/2,0]) {
+            cube([4.5,notch_width,3.4]);
+        }
+    }
+}
+
+module shell() {
+    union() {
+        cylinder(h=12,d=32.0,center=false);
+        translate([0,0,8.1]) {
+            cylinder(h=3.4,d=34,center=false);
+        }
+        translate([0,0,11.5]) {
+            cylinder(h=11.4,d1=34,d2=21,center=false);
+        }
+    }
+}
+
+difference() {
+    shell();
+    translate([0,0,-0.001]) {
+        peg_hole();
+    }
+}