diff --git a/scad/jk_projector.scad b/scad/jk_projector.scad
new file mode 100644
index 0000000..9c62614
--- /dev/null
+++ b/scad/jk_projector.scad
@@ -0,0 +1,51 @@
+
+module gear () {
+    //GEAR PINION
+    OD = 7;
+    ID = 5;
+    H = 7;
+    TEETH = 12;
+    TOOTH_W = .9;
+     //center
+    cylinder(r = ID / 2, h = 7, center = true, $fn = 60);
+    for (i = [0 : TEETH - 1]) {
+        rotate([0, 0, i * (360 / TEETH)])  translate([0, 2.9, 0]) cube([TOOTH_W, 1.1, H], center = true);
+    }
+}
+
+module notched_shaft (H = 10) {
+    D = 5;
+    difference () {
+        cylinder(r = D / 2, h = H, center = true, $fn = 50);
+        translate([4, 0, 0]) cube([D, D, H + 1], center = true);
+    }
+}
+
+module notched_roller () {
+    D = 37.75;
+    D2 = 34.5;
+    H = 3.5;
+    H2 = 14.5;
+    difference () {
+        union () {
+            difference () {
+                cylinder(r = D / 2, h = H, $fn = 180, center = true);
+                translate([D / 2, 0, 0]) scale([1, 2, 1]) rotate([0, 0, 45]) cube([2, 2, H + 1], center = true);
+            }
+            translate([0, 0, -(H / 2) - (H2 / 2)]) cylinder(r = D2 / 2, h = H2, $fn = 180, center = true);
+        }
+                for (i = [0 : 2]) {
+            rotate([0, 0, i * (360 / 3)]) translate([D / 4, 0, 0]) cylinder(r = 6 / 2, h = H2 * 4, $fn = 80, center = true);
+        }
+        translate([0, 0, -H - (H2 / 2) - 1]) rotate([0, 0, 60]) notched_shaft();
+    }
+    
+}
+
+PART = "gear";
+
+if (PART == "gear") {
+    translate([0, 0, 5]) gear();
+    notched_roller();
+    
+}
\ No newline at end of file