diff --git a/pvcpipeGenerator.scad b/pvcpipeGenerator.scad
new file mode 100644
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+++ b/pvcpipeGenerator.scad
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+// Pipe Fitting Generator
+
+/* [General Settings] */
+// Choose fitting type
+Fitting_Type = "Coupler"; // [Coupler, Tee, Cross]
+
+// Choose measurement system
+Measurement_System = "Metric"; // [Metric, SAE]
+
+// Pipe outer diameter (mm for Metric, inches for SAE)
+Pipe_OD = 40; // [10:1:200]
+
+// Wall thickness (mm for Metric, inches for SAE)
+Wall_Thickness = 3; // [1:0.5:10]
+
+// Threaded or non-threaded
+Threaded = false; // [true, false]
+
+/* [Thread Settings] */
+// Thread pitch (mm for Metric, threads per inch for SAE)
+Thread_Pitch = 3; // [0.5:0.25:5]
+
+// Thread depth (mm for Metric, inches for SAE)
+Thread_Depth = 1; // [0.5:0.25:3]
+
+/* [Hidden] */
+$fn = 100;
+
+module pipe_segment(length) {
+    difference() {
+        cylinder(h=length, d=Pipe_OD + 2*Wall_Thickness);
+        translate([0, 0, -0.1])
+            cylinder(h=length + 0.2, d=Pipe_OD - 2*Wall_Thickness);
+    }
+}
+
+module thread(length) {
+    pitch = (Measurement_System == "Metric") ? Thread_Pitch : 25.4 / Thread_Pitch;
+    depth = (Measurement_System == "Metric") ? Thread_Depth : Thread_Depth * 25.4;
+    
+    difference() {
+        cylinder(h=length, d=Pipe_OD + 2*Wall_Thickness);
+        translate([0, 0, -0.1])
+            cylinder(h=length + 0.2, d=Pipe_OD - 2*Wall_Thickness);
+        if (Threaded) {
+            for (i = [0:pitch:length]) {
+                translate([0, 0, i])
+                    rotate_extrude()
+                        translate([Pipe_OD/2 + Wall_Thickness - depth/2, 0, 0])
+                            circle(d=depth);
+            }
+        }
+    }
+}
+
+module coupler() {
+    length = Pipe_OD + 2*Wall_Thickness;
+    thread(length);
+}
+
+module tee() {
+    length = Pipe_OD + 2*Wall_Thickness;
+    branch_length = (Pipe_OD + 2*Wall_Thickness) / 2;
+    
+    difference() {
+        union() {
+            thread(length);
+        rotate([0, 90, 0])
+            translate([0, 0, 2*-branch_length])
+                thread(4*branch_length);
+        }
+        // Main pipe hole
+        translate([0, 0, -length/ - 0.1])
+            cylinder(h=length + 0.2, d=Pipe_OD - 2*Wall_Thickness);
+        // Branch hole
+        rotate([0, 90, 0])
+            translate([0, 0, -branch_length - 0.1])
+                cylinder(h=2*branch_length + 0.2, d=Pipe_OD - 2*Wall_Thickness);
+    }
+}
+
+module cross() {
+    length = Pipe_OD + 2*Wall_Thickness;
+    
+    difference() {
+        union() {
+            // + X-axis branches
+            rotate([0, 90, 0])
+                thread(length);
+            // + Z-axis branches
+            thread(length);
+            //  - X-axis branches
+            rotate([0, -90, 0])
+                thread(length);
+            rotate([0, 180, 0])
+            // - Z-axis branches
+                thread(length);
+        }
+        // X-axis hole
+        rotate([0, 90, 0])
+            translate([0, 0, -length/2 - 0.1])
+                cylinder(h=length + 0.2, d=Pipe_OD - 2*Wall_Thickness);
+        // Z-axis hole
+        translate([0, 0, -length/2 - 0.1])
+            cylinder(h=length + 0.2, d=Pipe_OD - 2*Wall_Thickness);
+    }
+}
+
+
+if (Fitting_Type == "Coupler") {
+    coupler();
+} else if (Fitting_Type == "Tee") {
+    tee();
+} else if (Fitting_Type == "Cross") {
+    cross();
+}