Updates

tubes/tube_endcap.scad

@@ -0,0 +1,64 @@
+// OpenSCAD simple script for a customizable round tube endcap
+// By Magonegro JUNE-2016
+// Use your own parameters to customize your endcap.
+// Open this in OpenSCAD, then press F6 wait for it to render the CAP and export to stl.
+// At print time remember that Buildplate only support ir required tor the upper CAP external overhanging diameter. 
+InnerMAXDiameter = 20; // Max inner diameter for the rings
+InnerMINDiameter = 18; // Keep same as MAX for cylindrical shape
+Rings=6;        // Number of rings.
+RingHeight=3;   // Max insertion height = Rings*RighHeight
+RingsRatio=1;   // Each ring's diameter will be this ratio the vaule of its precedent. 
+                // Enter 1 for uniform rings or 0.97 (for 6 rings) for a conical shape.
+                // Beware the inner hole, it should be smaller than the last ring.
+CAPOuterDiameter=24; // This should equal tube external diameter
+CAPHeight=10; // Height of the CAP, included Fillet
+Facets=100; // Resolution parameter, minimum value 3 for a triangular CAP, Defaults to 100 for smooth round CAP. Values lower than 30 could render artifacts
+InnerHoleDiameter=InnerMINDiameter/1.5; // Average value
+InnerHoleHeight=Rings*RingHeight; // Defaults till the cap
+Fillet=6; // Fillet radius for the CAP, should be less or equal than CAPHeight. Zero for no fillet. Should be also less o equal than CAPOuterDiameter/2.
+
+module MakeCap()
+{
+    difference()
+    {
+        union()
+        {
+            // Rings
+            for(i=[0:Rings-1])
+            {
+                Ratio=1-((1-RingsRatio)*(Rings-i));
+                translate([0,0,i*RingHeight])
+                    cylinder(h = RingHeight, 
+                        r1 = Ratio*InnerMINDiameter/2, 
+                        r2 = Ratio*InnerMAXDiameter/2, 
+                        center = false,$fn=Facets);
+            }
+            // Cap
+            translate([0,0,RingHeight*Rings])
+                cylinder(h = CAPHeight-Fillet, 
+                    r = CAPOuterDiameter/2, 
+                    center = false,$fn=Facets);
+            translate([0,0,RingHeight*Rings+CAPHeight-Fillet])
+                cylinder(h = Fillet, 
+                    r = CAPOuterDiameter/2-Fillet, 
+                    center = false,$fn=Facets);
+            rotate([0,0,360/2*Facets])
+            translate([0, 0, RingHeight*Rings+CAPHeight-Fillet])
+                rotate_extrude(convexity = 10,$fn = Facets)
+                    translate([CAPOuterDiameter/2-Fillet, 0, 0])
+                        intersection()
+                            {
+                            circle(r = Fillet, $fn = Facets);    
+                            square(Fillet);
+                            }
+        }
+    // Hole
+    cylinder(h = InnerHoleHeight, 
+                r = InnerHoleDiameter/2, 
+                center = false,$fn=Facets);
+    
+    }
+}
+
+// Main
+MakeCap();