All improvements to script, make truly parametric. Still have some TODOs

README.md

@@ -1,5 +1,53 @@
 # Split Reels
 
-3D-printable threaded split reels for 16mm and Super8 film.
+This script generates 3D-printable, threaded split reels for 16mm and 8mm film. 
+This is a parametric model, so download the source code and generate split reels of any capacity for either 16mm or 8mm gauge film.
 
------
+The design is roughly-compatible with the aluminum reels, but threading plastic onto metal or *vice versa* may break the printed parts.
+
+The downloadable models are 120m/400ft reels for 16mm and 8mm film and are designed to hold standard film cores.
+
+To use this script download the source files and create a new file in the directory in OpenSCAD.
+
+```scad
+use <scad/split_reel.scad>;
+
+split_reel("8mm", 240, "A");
+```
+
+This will generate the threaded side of a split reel for 8mm gauge film for 240m or 800ft of film.
+
+## 16mm Split Reel 120m/400ft - Side A (Threaded)
+
+### [Download STL](./stl/split_reel_16mm_120m_A.stl)
+
+![16mm Split Reel 120m/400ft - Side A](./stl/split_reel_16mm_120m_A.jpg)
+
+## 16mm Split Reel 120m/400ft - Side B 
+
+### [Download STL](./stl/split_reel_16mm_120m_B.stl)
+
+![16mm Split Reel 120m/400ft - Side B](./img/split_reel_16mm_120m_B.jpg)
+
+## 8mm Split Reel 120m/400ft - Side A (Threaded)
+
+### [Download STL](./stl/split_reel_super8_120m_A.stl)
+
+![8mm Split Reel 120m/400ft - Side A](./stl/split_reel_super8_120m_A.jpg)
+
+## 8mm Split Reel 120m/400ft - Side B 
+
+### [Download STL](./stl/split_reel_super8_120m_B.stl)
+
+![8mm Split Reel 120m/400ft - Side B](./img/split_reel_super8_120m_B.jpg)
+
+## Other STLs
+
+* [16mm Split Reel 60m/200ft - Side A (Threaded)](./stl/split_reel_16mm_60m_A.stl)
+* [16mm Split Reel 60m/200ft - Side B](./stl/split_reel_16mm_60m_B.stl)
+* [16mm Split Reel 30m/100ft - Side A (Threaded)](./stl/split_reel_16mm_30m_A.stl)
+* [16mm Split Reel 30m/200ft - Side B](./stl/split_reel_16mm_30m_B.stl)
+* [8mm Split Reel 60m/200ft - Side A (Threaded)](./stl/split_reel_8mm_60m_A.stl)
+* [8mm Split Reel 60m/200ft - Side B](./stl/split_reel_8mm_60m_A.stl)
+* [8mm Split Reel 30m/100ft - Side A (Threaded)](./stl/split_reel_8mm_30m_A.stl)
+* [8mm Split Reel 30m/100ft - Side B](./stl/split_reel_8mm_30m_B.stl)

meta.json

@@ -39,7 +39,9 @@
 		"LICENSE",
 		"scad.sh",
 		"scad/split_reel.scad",
+		"scad/common/common.scad",
 		"scad/common/threads.scad",
+		"scad/common/string.scad",
 		"scad/common/c14n_stl.py"
 	]
 }

scad.sh

@@ -1,3 +1,5 @@
 #!/bin/bash
 
-bash scad/common/scad.sh scad/split_reel.scad "${@}"
+bash scad/common/scad.sh scad/split_reel.scad "${@}"
+rm img/*30m*.jpg
+rm img/*60m*.jpg

scad/common

@@ -1 +1 @@
-Subproject commit 6c223d0fc67c1888429aee60cf68915b9bbaa1ca
+Subproject commit e2eeb27f173d739a174c0d147bcb62a16859e2d9

scad/split_reel.scad

@@ -1,17 +1,26 @@
-include <./common/common.scad>;
-include <./common/threads.scad>;
+use <./common/common.scad>;
+use <./common/threads.scad>;
+include <./common/string.scad>;
+
+FilmThickness = 4.11; //mil
+FilmThicknessMM = FilmThickness * 0.0254;
+
+CoreD = 2 * 25.4;
 
 Core16mm = 25.5;
 Socket16mmH = 11;
 PlatterThickness = 1.6;
-Platter120m = 178;
+//Platter120m = 178;
 Thread16mmD = 17.5;
 Pitch16mm = 1.525;
 
 SocketSuper8H = 4;
 ThreadSuper8D = 21;
 
-module rotary_text (TextArr = ["T","e","s","t"], D = 40, CharacterAngle = 15) {
+Title = "";
+
+module rotary_text (Text = "Test", D = 40, CharacterAngle = 15) {
+    TextArr = split(Text, "");
     Radius = R(D);
     Chars = len(TextArr);
     for (i = [0:1:Chars]) {
@@ -23,51 +32,57 @@ module rotary_text (TextArr = ["T","e","s","t"], D = 40, CharacterAngle = 15) {
     }
 }
 
-module thread_16mm ( pos = [0, 0, 0], length = 11, chamfer = false, pad = 0) {
+module length_text (Gauge = "16mm", Length = 120, Footage = 400, PlatterD = 178) {
+    Text = join(concat(Gauge, " ", str(Length), "m/", str(Footage), "ft"));
+    CharacterAngle = Length == 120 ? 3.75 : Length == 60 ? 4.5 : Length == 30 ? 6.25 : 3.75;  
+    rotary_text( Text,  D = PlatterD - 15, CharacterAngle);
+}
+
+module thread_16mm ( pos = [0, 0, 0], Length = 11, chamfer = false, pad = 0) {
     translate(pos) {
         if (chamfer) {
-            metric_thread (diameter=Thread16mmD + pad, pitch=Pitch16mm, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=2, leadfac=1.5);
+            metric_thread (diameter=Thread16mmD + pad, pitch=Pitch16mm, length=Length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=2, leadfac=1.5);
         } else {
-            metric_thread (diameter=Thread16mmD + pad, pitch=Pitch16mm, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=0, leadfac=1.5);
+            metric_thread (diameter=Thread16mmD + pad, pitch=Pitch16mm, length=Length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=0, leadfac=1.5);
         }
     }
 }
 
-module thread_super8 ( pos = [0, 0, 0], length = 6, chamfer = false, pad = 0) {
+module thread_8mm ( pos = [0, 0, 0], Length = 6, chamfer = false, pad = 0) {
     translate(pos) {
         if (chamfer) {
-            metric_thread (diameter=ThreadSuper8D + pad, pitch=Pitch16mm, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=2, leadfac=1.5);
+            metric_thread (diameter=ThreadSuper8D + pad, pitch=Pitch16mm, length=Length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=2, leadfac=1.5);
         } else {
-            metric_thread (diameter=ThreadSuper8D + pad, pitch=Pitch16mm, length=length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=0, leadfac=1.5);
+            metric_thread (diameter=ThreadSuper8D + pad, pitch=Pitch16mm, length=Length, internal=false, n_starts=1, thread_size=-1, groove=false, square=false, rectangle=0, angle=30, taper=0, leadin=0, leadfac=1.5);
         }
     }
 }
 
-module threaded_core (pos = [0, 0, 0], format = "16mm") {
+module threaded_core (pos = [0, 0, 0], Gauge = "16mm") {
     $fn = 120;
     translate (pos) {
-        if (format == "16mm") {
+        if (Gauge == "16mm") {
             union () {
                 cylinder(r = R(Core16mm), h = 6, center = true);
-                thread_16mm([0, 0, 1.5], length = Socket16mmH + 3, chamfer = true, pad = -0.2);
+                thread_16mm([0, 0, 1.5], Length = Socket16mmH + 3, chamfer = true, pad = -0.2);
             }  
-        } else if (format == "super8") {
+        } else if (Gauge == "8mm") {
             union () {
                 cylinder(r = R(Core16mm), h = 4, center = true);
-                thread_super8([0, 0, 0], length = SocketSuper8H + 3, chamfer = true, pad = -0.2);
+                thread_8mm([0, 0, 0], Length = SocketSuper8H + 3, chamfer = true, pad = -0.2);
             }  
         }
     }
 }
 
-module socket_core (pos = [0, 0, 0], format = "16mm") {
+module socket_core (pos = [0, 0, 0], Gauge = "16mm") {
     $fn = 120;
     translate (pos) {
-        if (format == "16mm") {
+        if (Gauge == "16mm") {
             difference () {
                 cylinder(r = R(Core16mm), h = Socket16mmH, center = true);
             }
-        } else if (format == "super8") {
+        } else if (Gauge == "8mm") {
             difference () {
                 cylinder(r = R(Core16mm), h = SocketSuper8H, center = true);
             }
@@ -75,25 +90,28 @@ module socket_core (pos = [0, 0, 0], format = "16mm") {
     }
 }
 
-module platter (pos = [0, 0, 0], length = 120) {
-    if (length == 120) {
-        difference () {
-            cylinder(r = R(Platter120m), h = PlatterThickness, center = true, $fn = 300);
+module platter (pos = [0, 0, 0], PlatterD = 178) {
+    VoidD = (PlatterD - CoreD) / 3;
+    VoidX = floor(((PlatterD - CoreD) * 0.43) + CoreD);
+    echo(VoidD);
+    difference () {
+        cylinder(r = R(PlatterD), h = PlatterThickness, center = true, $fn = 300);
+        if (VoidD > 22) {
             for (i = [0 : 3]) {
-                rotate([0, 0, i * 90]) translate([105 / 2, 0, 0]) cylinder(r = R(44.5), h = PlatterThickness + 1, center = true, $fn = 100);
+                rotate([0, 0, i * 90]) translate([VoidX / 2, 0, 0]) cylinder(r = R(VoidD), h = PlatterThickness + 1, center = true, $fn = 100);
             }
         }
     }
 }
 
-module split_reel_16mm_A (length = 120) { 
+module split_reel_16mm_A (Length = 120, Footage = 400, PlatterD = 178) {
     difference () {
         union () {
             difference () {
-                platter([0, 0, 0], length = length);
-                translate([0, 0, -0.5]) rotate([180, 0, 0]) rotate([0, 0, (5 * 3.75) / 2]) rotary_text(["1", "6", "m", "m", " ", " ", "1", "2", "0", "m", "/", "4", "0", "0", "f", "t"],  D = Platter120m - 15, CharacterAngle=3.75);
+                platter(pos = [0, 0, 0], PlatterD = PlatterD);
+                translate([0, 0, -0.5]) rotate([180, 0, 0]) rotate([0, 0, (5 * 3.75) / 2]) length_text("16mm", Length, Footage, PlatterD);
             }
-            threaded_core([0, 0, (PlatterThickness / 2) + (6 / 2)], format = "16mm");
+            threaded_core([0, 0, (PlatterThickness / 2) + (6 / 2)], Gauge = "16mm");
             rotate([0, 0, 135]) translate([18.5, 0, (PlatterThickness / 2) + (4.75 / 2)]) cylinder(r = R(6.25), h = 4.75, center = true, $fn = 60);
             
         }
@@ -102,11 +120,11 @@ module split_reel_16mm_A (length = 120) {
     }
 }
 
-module split_reel_16mm_B ( length = 120) {
+module split_reel_16mm_B ( Length = 120, Footage = 400, PlatterD = 178) {
     difference () {
         union () {
-            platter([0, 0, 0], length = length);
-            socket_core([0, 0, (PlatterThickness / 2) + (Socket16mmH / 2)], format = "16mm");
+            platter([0, 0, 0], PlatterD = PlatterD);
+            socket_core([0, 0, (PlatterThickness / 2) + (Socket16mmH / 2)], Gauge = "16mm");
         }
         rotate([180, 0, 0]) scale([1.02, 1.02, 1]) {
             thread_16mm([0, 0, -13], 15);
@@ -115,7 +133,7 @@ module split_reel_16mm_B ( length = 120) {
     }
 }
 
-module split_reel_super8_A ( length = 120) { 
+module split_reel_8mm_A ( Length = 120, Footage = 400, PlatterD = 178) { 
     BaseH = 4;
     NotchH = 2;
     NotchW = 21;
@@ -123,10 +141,10 @@ module split_reel_super8_A ( length = 120) {
     difference () {
         union () {
             difference () {
-                platter([0, 0, 0], length = length);
-                translate([0, 0, -0.5]) rotate([180, 0, 0]) rotate([0, 0, (5 * 3.75) / 2]) rotary_text(["S", "u", "p", "e", "r", "8", " ", " ", "1", "2", "0", "m", "/", "4", "0", "0", "f", "t"],  D = Platter120m - 15, CharacterAngle=3.75);
+                platter([0, 0, 0], PlatterD = PlatterD);
+                translate([0, 0, -0.5]) rotate([180, 0, 0]) rotate([0, 0, (5 * 3.75) / 2]) length_text("8mm", Length, Footage, PlatterD);
             }
-            threaded_core([0, 0, (PlatterThickness / 2) + (BaseH / 2)], format = "super8");
+            threaded_core([0, 0, (PlatterThickness / 2) + (BaseH / 2)], Gauge = "8mm");
             rotate([0, 0, 135]) translate([18.5, 0, (PlatterThickness / 2) + (NotchH / 2)]) cylinder(r = R(6.25), h = NotchH, center = true, $fn = 60);
         }
         cylinder(r = R(13), h = 50, center = true, $fn = 80);
@@ -136,37 +154,44 @@ module split_reel_super8_A ( length = 120) {
     }
 }
 
-module split_reel_super8_B ( length = 120) {
+module split_reel_8mm_B ( Length = 120, Footage = 400, PlatterD = 178) {
     difference () {
         union () {
-            platter([0, 0, 0], length = length);
-            socket_core([0, 0, (PlatterThickness / 2) + (SocketSuper8H / 2)], format = "super8");
+            platter([0, 0, 0], PlatterD = PlatterD);
+            socket_core([0, 0, (PlatterThickness / 2) + (SocketSuper8H / 2)], Gauge = "8mm");
         }
+
         rotate([180, 0, 0]) scale([1.02, 1.02, 1]) {
-            thread_super8([0, 0, -13], 15);
-            thread_super8([0, 0, -13.1], 15);
+            thread_8mm([0, 0, -13], 15);
+            thread_8mm([0, 0, -13.1], 15);
         }
     }
 }
 
-//length in meters
-module split_reel (format = "16mm", length = 120, half = "A") {
-    if (format == "16mm") {
-        if (half == "A") {
-            split_reel_16mm_A(length = length);
-        } else if (half == "B") {
-            split_reel_16mm_B(length = length);
+//Length in meters
+module split_reel (Gauge = "16mm", Length = 120, Side = "A") {
+    PlatterD = ceil((2 * sqrt(((Length * 1000) * FilmThicknessMM) / PI)) + (CoreD));
+    echo("PlatterD", PlatterD);
+    Footage = Length == 120 ? 400 : Length == 60 ? 200 : Length == 30 ? 100 : round((Length * 1000) / (12 * 25.4));
+
+    if (Gauge == "16mm") {
+        if (Side == "A") {
+            split_reel_16mm_A(Length = Length, Footage = Footage, PlatterD = PlatterD);
+        } else if (Side == "B") {
+            split_reel_16mm_B(Length = Length, Footage = Footage, PlatterD = PlatterD);
         }
-    } else if (format == "super8") {
-        if (half == "A") {
-            split_reel_super8_A(length = length);
-        } else if (half == "B") {
-            split_reel_super8_B(length = length);
+    } else if (Gauge == "8mm") {
+        if (Side == "A") {
+            split_reel_8mm_A(Length = Length, Footage = Footage, PlatterD = PlatterD);
+        } else if (Side == "B") {
+            split_reel_8mm_B(Length = Length, Footage = Footage, PlatterD = PlatterD);
         }
+    } else {
+        echo("Unrecognized Gauge:", Gauge);
     }
 }
 
-module buildPyramidalExtrude(height,maxOffset,nSlices){
+module buildPyramidalExtrude(height, maxOffset, nSlices){
     heightIncrement = height / nSlices;
     offsetIncrement = maxOffset / (nSlices-1);
     for (i = [1 : nSlices]) {
@@ -189,14 +214,30 @@ module logo_test () {
     }
 }
 
-PART = "16mm_120m_B";
+PART = "16mm_120m_A";
 
 if (PART == "16mm_120m_A") {
     split_reel("16mm", 120, "A");
 } else if (PART == "16mm_120m_B") {
     split_reel("16mm", 120, "B");
-} else if (PART == "super8_120m_A") {
-    split_reel("super8", 120, "A");
-} else if (PART == "super8_120m_B") {
-    split_reel("super8", 120, "B");
+} else if (PART == "8mm_120m_A") {
+    split_reel("8mm", 120, "A");
+} else if (PART == "8mm_120m_B") {
+    split_reel("8mm", 120, "B");
+} else if (PART == "16mm_60m_A") {
+    split_reel("16mm", 60, "A");
+} else if (PART == "16mm_60m_B") {
+    split_reel("16mm", 60, "B");
+} else if (PART == "8mm_60m_A") {
+    split_reel("8mm", 60, "A");
+} else if (PART == "8mm_120m_B") {
+    split_reel("8mm", 60, "B");
+} else if (PART == "16mm_30m_A") {
+    split_reel("16mm", 30, "A");
+} else if (PART == "16mm_30m_B") {
+    split_reel("16mm", 30, "B");
+} else if (PART == "8mm_30m_A") {
+    split_reel("8mm", 30, "A");
+} else if (PART == "8mm_30m_B") {
+    split_reel("8mm", 30, "B");
 }