diff --git a/100ft_v3/gnal_100ft.scad b/100ft_v3/gnal_100ft.scad
index 9356d6e..2f573a1 100644
--- a/100ft_v3/gnal_100ft.scad
+++ b/100ft_v3/gnal_100ft.scad
@@ -1,4 +1,252 @@
+//V3
+
 include <../libraries/gnal_v3.scad>;
 
-$fn = 200;
-spiral(60, 45.55, 2.075, $fn);
\ No newline at end of file
+SPOKE_COUNT = 24;
+PART="";
+
+module gnal_100ft_spiral (spiral_count = 60, od = 298.75) {
+    outer_d = 299;
+    outer_d_inside = outer_d - 6;
+    outer_h = 7.5;
+    
+    spoke_len = 123;
+    spoke_w = 3;
+    spoke_h = 4.2 + 3;
+    
+    spoke_2_len = 85;
+    
+    spoke_cross_1_d = 63;
+    spoke_cross_1_w = 18;
+    
+    spoke_cross_2_d = 108;
+    spoke_cross_2_w = 15;
+    
+    spoke_3_len = 39;
+    spoke_3_w = 2;
+    
+    translate([0, 0, -3.6]) difference () {
+        cylinder(r = outer_d / 2, h = spoke_h, center = true, $fn = 500);
+        cylinder(r = outer_d_inside / 2, h = outer_h + 1, center = true, $fn = 500);
+    }
+    
+    difference () {
+        gnal_spiral_core();
+        //rounded spoke voids
+        for (i = [0 : SPOKE_COUNT]) {
+            rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+                translate([0, 26.75, 0]) {
+                    cylinder(r = 2, h = 20, center = true, $fn = 40);
+                }
+            }
+        }
+    }
+    
+    //main spokes
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, i * (360 / SPOKE_COUNT)]) {
+            translate([(spoke_len / 2) + (48 / 2), 0, -3.6]) {
+                cube([spoke_len, spoke_w, spoke_h], center = true);
+            }
+        }
+    }
+    //secondary spokes
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+            translate([(outer_d / 2) - (spoke_2_len / 2) - 2, 0, -3.6]) {
+                cube([spoke_2_len, spoke_w, spoke_h], center = true);
+            }
+        }
+    }
+    //spoke cross bars
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+            translate([63, 0, -3.6]) {
+                rotate([0, 0, 20]) {
+                    cube([ spoke_w, 18, spoke_h], center = true);
+                }
+            }
+        }
+    }
+    
+    //second spokes
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+            translate([(outer_d / 2) - (spoke_2_len / 2) - 2, 0, -3.6]) {
+                cube([spoke_2_len, spoke_w, spoke_h], center = true);
+            }
+        }
+    }
+
+    //second spoke cross pieces
+    for (i = [0 : SPOKE_COUNT * 2]) {
+        rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 2))]) {
+            translate([spoke_cross_2_d, 0, -3.6]) {
+                rotate([0, 0, -20]) {
+                    cube([ spoke_w, spoke_cross_2_w, spoke_h], center = true);
+                }
+            }
+        }
+    }
+    
+    //third spokes
+    for (i = [0 : SPOKE_COUNT * 2]) {
+        rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 2))]) {
+            translate([(outer_d / 2) - (spoke_3_len / 2) - 2, 0, -3.6]) {
+                cube([spoke_3_len, spoke_3_w, spoke_h], center = true);
+            }
+        }
+    }
+    
+    translate([0, 0, -.1]) {
+        rotate([0, 0, -90]) {
+            difference () {
+                film_guide(spiral_count);
+                for (i = [0 : SPOKE_COUNT]) {
+                    rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT) ]) {
+                        translate([(83 / 4) + (48 / 2), 0, -3.6]) triangle_void(); 
+                    }
+                }
+                for (i = [0 : SPOKE_COUNT * 2]) {
+                    rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 2)) ]) {
+                       translate([(258 / 2) - (spoke_2_len / 2) + 1 , 0, -3.6]) triangle_void_2(); 
+                    }
+                }
+                for (i = [0 : SPOKE_COUNT * 4]) {
+                    rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 4)) ]) {
+                        if (i % 2 == 0) {
+                       translate([(outer_d / 2) - (spoke_3_len / 2) + 1 , 0.3, -3.6]) triangle_void_3(); 
+                        } else {
+                            translate([(outer_d / 2) - (spoke_3_len / 2) + 1, -0.3, -3.6]) triangle_void_3();
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+module gnal_100ft_top () {
+    H = 5;
+    center_d = 53;
+    spoke_w = 4.5;
+    spokes = 12;
+    outer_d = 299;
+    inner_d = 150;
+    inner_d_2 = 215;
+    void_d = 22.5;
+    hole_d = 3.5;
+    hole_spacing = 37;
+    core_d = 29.5;
+    core_bottom_d = 26.2;
+    
+    difference () {
+        union () {
+            cylinder(r = center_d / 2, h = H, center = true, $fn = 100);
+            for (i = [0 : spokes]) {
+                rotate([0, 0, i * (360 / spokes)]) translate([0, outer_d / 4, 0]) cube([spoke_w, (outer_d / 2) - 1, H], center = true);
+            }
+            //outer spokes
+            for (i = [0 : spokes * 2]) {
+                rotate([0, 0, i * (360 / (spokes * 2))]) translate([0, (outer_d / 2) - 25, 0]) cube([spoke_w, (outer_d / 2) - (inner_d_2 / 2) , H], center = true);
+            }
+        }
+        //void
+        cylinder(r = void_d / 2, h = H + 1, center = true, $fn = 100);
+        //speed holes
+        for (i = [0 : 3]) {
+            rotate([0, 0, (i * 90) + 45]) translate([0, hole_spacing / 2, 0]) cylinder(r = hole_d / 2, h = H + 1, center = true);
+        }
+        //rounding of center cylinder
+        for (i = [0 : spokes]) {
+            rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([-2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
+            rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
+             rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([0, 26.5, 0]) cube([5, 4, H + 1], center = true);
+        }
+    }
+    difference () {
+        cylinder(r = (center_d / 2) - 1.8, h = H, center = true, $fn = 200);
+        cylinder(r = (hole_spacing / 2) + 2, h = H + 1, center = true, $fn = 200);
+    }
+    //outer ring
+    difference () {
+        cylinder(r = outer_d / 2, h = H, center = true, $fn = 200);
+        cylinder(r = (outer_d / 2) - 5, h = H + 1, center = true, $fn = 200);
+    }
+    //inner ring
+    difference () {
+        cylinder(r = inner_d / 2, h = H, center = true, $fn = 200);
+        cylinder(r = (inner_d / 2) - 5, h = H + 1, center = true, $fn = 200);
+    }
+    //second inner ring
+    difference () {
+        cylinder(r = inner_d_2 / 2, h = H, center = true, $fn = 200);
+        cylinder(r = (inner_d_2 / 2) - 5, h = H + 1, center = true, $fn = 200);
+    }
+    
+    //rounded cross connectors
+    for (i = [0 : spokes]) {
+                rotate([0, 0, i * (360 / spokes)]) translate([0, (inner_d / 2) - (spoke_w / 2), 0]) difference() {
+                    cylinder(r = 6.5, h = H, center = true);
+                    translate([6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                    translate([-6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                    translate([-6.1, -7, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                    translate([6.1, -7, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                }
+            }
+            difference () {
+                union () {
+                    translate([0, 0, 3.75 + 1]) cylinder(r = core_d / 2, h = H, center = true, $fn = 60);
+                    translate([0, 0, 3.75 + 1 + 3.2]) cylinder(r = core_bottom_d / 2, h = H, center = true, $fn = 60);
+                }
+                cylinder(r = void_d / 2, h = H * 5 , center = true, $fn = 100);
+                translate([0, 0, 4 + 1 + 2.25]) spacer_ridges();
+            }
+    //rounded second ring connectors
+    for (i = [0 : spokes]) {
+            rotate([0, 0, i * (360 / spokes)]) translate([0, 205 / 2, 0]) difference () {
+                translate([0, 2, 0]) cube([13, 12, H], center = true);
+                translate([6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                translate([-6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                translate([6.2, 8.75, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                translate([-6.2, 8.75, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+            }
+        }
+    //second ring connectors
+    for (i = [0 : spokes * 2]) {
+        rotate([0, 0, i * (360 / (spokes * 2))]) translate([0, 205 / 2, 0]) difference () {
+                translate([0, 4, 0]) cube([13, 8, H], center = true);
+                translate([6.2, 8.75, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                translate([-6.2, 8.75, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+        }
+    }     
+    
+    for (i = [0 : spokes * 2]) {
+        rotate([0, 0, i * (360 / (spokes * 2))]) translate([0, 289 / 2, 0]) difference () {
+                translate([0, 0, 0]) cube([13, 9, H], center = true);
+                translate([6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+                translate([-6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+        }
+    }    
+}
+
+
+
+module film_guide (rotations = 60, id = 45.55, spacing = 2.075) {
+    $fn = 200;
+	spiral(rotations, id, spacing, $fn);
+}
+
+if (PART == "spiral") {
+    gnal_100ft_spiral();
+} else if (PART == "top") {
+    gnal_100ft_top();
+} else if (PART == "spacer") {
+    gnal_spacer();
+} else if (PART == "insert_s8") {
+    gnal_spiral_bottom_insert_s8();
+} else if (PART == "insert_16") {
+    gnal_spiral_bottom_insert_16();
+} else if (PART == "spacer_16") {
+    gnal_spacer_16();
+}
diff --git a/50ft_v3/gnal_50ft.scad b/50ft_v3/gnal_50ft.scad
index d2332e5..0cda76c 100644
--- a/50ft_v3/gnal_50ft.scad
+++ b/50ft_v3/gnal_50ft.scad
@@ -1,4 +1,175 @@
+//V3
+
 include <../libraries/gnal_v3.scad>;
 
-$fn = 200;
-spiral(40, 45.55, 2.075, $fn);
+SPOKE_COUNT = 24;
+PART="";
+
+module gnal_50ft_spiral (spiral_count = 40, od = 215.75) {
+    outer_d = 215;
+    outer_d_inside = 209;
+    outer_h = 7.5;
+    
+    spoke_len = 81;
+    spoke_w = 3;
+    spoke_h = 4.2 + 3;
+    
+    spoke_2_len = 43;
+    
+    translate([0, 0, -3.6]) difference () {
+        cylinder(r = outer_d / 2, h = spoke_h, center = true, $fn = 500);
+        cylinder(r = outer_d_inside / 2, h = outer_h + 1, center = true, $fn = 500);
+    }
+    
+    difference () {
+        gnal_spiral_core();
+        //rounded spoke voids
+        for (i = [0 : SPOKE_COUNT]) {
+            rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+                translate([0, 26.75, 0]) {
+                    cylinder(r = 2, h = 20, center = true, $fn = 40);
+                }
+            }
+        }
+    }
+    //main spokes
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, i * (360 / SPOKE_COUNT)]) {
+            translate([(spoke_len / 2) + (48 / 2), 0, -3.6]) {
+                cube([spoke_len, spoke_w, spoke_h], center = true);
+            }
+        }
+    }
+    //secondary spokes
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+            translate([(outer_d / 2) - (spoke_2_len / 2) - 2, 0, -3.6]) {
+                cube([spoke_2_len, spoke_w, spoke_h], center = true);
+            }
+        }
+    }
+    //spoke cross bars
+    for (i = [0 : SPOKE_COUNT]) {
+        rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
+            translate([63, 0, -3.6]) {
+                rotate([0, 0, 20]) {
+                    cube([ spoke_w, 18, spoke_h], center = true);
+                }
+            }
+        }
+    }
+    
+    translate([0, 0, -.1]) {
+        rotate([0, 0, -90]) {
+            difference () {
+                film_guide(spiral_count);
+                for (i = [0 : SPOKE_COUNT]) {
+                    rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT) ]) {
+                        translate([(spoke_len / 4) + (48 / 2), 0, -3.6]) triangle_void(); 
+                    }
+                }
+                for (i = [0 : SPOKE_COUNT * 2]) {
+                    rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 2)) ]) {
+                       translate([(outer_d / 2) - (spoke_2_len / 2) + 1 , 0, -3.6]) triangle_void_2(); 
+                    }
+                }
+            }
+        }
+    }
+}
+
+module gnal_50ft_top () {
+    H = 5;
+    center_d = 53;
+    spoke_w = 4.5;
+    spokes = 12;
+    outer_d = 215;
+    inner_d = 150;
+    void_d = 22.5;
+    hole_d = 3.5;
+    hole_spacing = 37;
+    core_d = 29.5;
+    core_bottom_d = 26.2;
+    
+    difference () {
+        union () {
+            cylinder(r = center_d / 2, h = H, center = true, $fn = 100);
+            for (i = [0 : spokes]) {
+                rotate([0, 0, i * (360 / spokes)]) translate([0, outer_d / 4, 0]) cube([spoke_w, (outer_d / 2) - 1, H], center = true);
+            }
+        }
+        //void
+        cylinder(r = void_d / 2, h = H + 1, center = true, $fn = 100);
+        //speed holes
+        for (i = [0 : 3]) {
+            rotate([0, 0, (i * 90) + 45]) translate([0, hole_spacing / 2, 0]) cylinder(r = hole_d / 2, h = H + 1, center = true);
+        }
+        //rounding of center cylinder
+        for (i = [0 : spokes]) {
+            rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([-2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
+            rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
+            rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([0, 26.5, 0]) cube([5, 4, H + 1], center = true);
+        }
+    }
+    difference () {
+        cylinder(r = (center_d / 2) - 1.8, h = H, center = true, $fn = 200);
+        cylinder(r = (hole_spacing / 2) + 2, h = H + 1, center = true, $fn = 200);
+    }
+    //outer ring
+    difference () {
+        cylinder(r = outer_d / 2, h = H, center = true, $fn = 200);
+        cylinder(r = (outer_d / 2) - 5, h = H + 1, center = true, $fn = 200);
+    }
+    //inner ring
+    difference () {
+        cylinder(r = inner_d / 2, h = H, center = true, $fn = 200);
+        cylinder(r = (inner_d / 2) - 5, h = H + 1, center = true, $fn = 200);
+    }
+    //rounded cross connectors
+    for (i = [0 : spokes]) {
+        rotate([0, 0, i * (360 / spokes)]) translate([0, (inner_d / 2) - (spoke_w / 2), 0]) difference() {
+            cylinder(r = 6.5, h = H, center = true);
+            translate([6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+            translate([-6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+            translate([-6.1, -7, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+            translate([6.1, -7, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+        }
+    }
+    difference () {
+        union () {
+            translate([0, 0, 3.75 + 1]) cylinder(r = core_d / 2, h = H, center = true, $fn = 60);
+            translate([0, 0, 3.75 + 1 + 3.2]) cylinder(r = core_bottom_d / 2, h = H, center = true, $fn = 60);
+        }
+        cylinder(r = void_d / 2, h = H * 5 , center = true, $fn = 100);
+        translate([0, 0, 4 + 1 + 2.25]) spacer_ridges();
+    }
+    //rounded outer ring connectors
+    for (i = [0 : spokes]) {
+        rotate([0, 0, i * (360 / spokes)]) translate([0, 205 / 2, 0]) difference () {
+            cube([13, 9, H], center = true);
+            translate([6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+            translate([-6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
+        }
+    }        
+}
+
+
+
+module film_guide (rotations = 40, id = 45.55, spacing = 2.075) {
+	$fn = 200;
+	spiral(rotations, id, spacing, $fn);
+}
+
+if (PART == "") { //spiral
+    gnal_50ft_spiral();
+} else if (PART == "top") {
+    gnal_50ft_top();
+} else if (PART == "spacer") {
+    gnal_spacer();
+} else if (PART == "insert_s8") {
+    gnal_spiral_bottom_insert_s8();
+} else if (PART == "insert_16") {
+    gnal_spiral_bottom_insert_16();
+} else if (PART == "spacer_16") {
+    gnal_spacer_16();
+}
diff --git a/libraries/gnal_v2.scad b/libraries/gnal_v2.scad
index 859f9bb..67897f0 100644
--- a/libraries/gnal_v2.scad
+++ b/libraries/gnal_v2.scad
@@ -1,4 +1,4 @@
-//GNAL Shared Library
+//GNAL v2 Shared Library
 
 include <./path_extrude.scad>;
 include <./threads.scad>;
diff --git a/libraries/gnal_v3.scad b/libraries/gnal_v3.scad
index bc76bea..411e255 100644
--- a/libraries/gnal_v3.scad
+++ b/libraries/gnal_v3.scad
@@ -1,4 +1,25 @@
+//GNAL v3 Shared Library
+
 include <./path_extrude.scad>;
+include <./threads.scad>;
+
+/**
+ * THREADS
+ * TOP (large screw) 
+ * metric_thread (diameter=13.6, pitch=1.5 ,thread_size = 1.6, length = 21);
+ * TOP VOID
+ * metric_thread (diameter=13.6 + .5, pitch=1.5, thread_size = 1.6, length = 21);
+ * + clone translated along Z by 0.2mm
+ * BOTTOM (small screw)
+ * metric_thread (diameter=10, pitch=1.5, thread_size = 1.6, length=LEN);
+ */
+
+OD = 10 + .5;
+PITCH = 1.5;
+THREAD = 1.6;
+LEN = 21;
+
+INSERT_D = 26;
 
 function X (start_r, spacing, fn, r, i) = (start_r + (r * spacing) + (i * calcIncrement(spacing, fn))) * cos(i * calcAngle(fn));
 function Y (start_r, spacing, fn, r, i) = (start_r + (r * spacing) + (i * calcIncrement(spacing, fn))) * sin(i * calcAngle(fn));
@@ -16,7 +37,8 @@ function calcIncrement(spacing, fn) = spacing / fn;
 /**
  * spiral_7 - Combination of spiral_3 and spiral_4 that doesn't sacrifice
  * performance. Hits an overflow when $fn is higher than 245 which creates
- * 8418 vectors at 60 rotations. It's an edge casem 
+ * 8418 vectors at 60 rotations. This is an edge case, only appearing in OpenSCAD
+ * 2019.05 (and maybe earlier), but should be explored.
  **/
 module spiral (rotations = 40, start_d = 48, spacing = 2.075, fn) {
 
@@ -50,4 +72,340 @@ module spiral (rotations = 40, start_d = 48, spacing = 2.075, fn) {
                         0] 
                     ];
     path_extrude(exShape=facetProfile, exPath=spiralPath);
+}
+
+/**
+ * Core (center of the reel)
+ **/
+module gnal_spiral_core () {
+    $fn = 360;
+    
+    core_center_h =  4.2 + 3;;
+    
+    core_bottom_outer_d = 53;
+    core_bottom_outer_void_d = 44;
+    core_bottom_outer_h = 4.2;
+    
+    core_d = 29.5;
+    core_h = 8.5;
+    
+    core_bottom_d = 26;
+    core_bottom_h = 4.2;
+    
+    top_z_offset = (core_h / 2) - (core_center_h / 2);
+    
+    core_void_outer_d = 20.5;
+    core_void_inner_d = 14.5;
+    core_void_h = 11.5;
+    
+    arms_outer_d = 48;
+    arms_inner_d = 48 - 7;
+    
+    void_d = 18;
+    
+    film_void = 0.6;
+    
+    difference () {
+        union() {
+            //center
+            translate([0, 0, -core_center_h / 2]) {
+                cylinder(r = (core_bottom_outer_d - 1) / 2, h = core_center_h, center = true);
+            }
+            //top
+            translate([0, 0, top_z_offset]) {
+                cylinder(r = core_d / 2, h = core_h + core_center_h, center = true); 
+            }
+        }
+        cylinder(r = void_d / 2, h = 30, center = true);
+        translate([0, 0, -7.2]) spiral_bottom_insert_void();
+    }
+
+    //arms
+    difference () {
+        union () {
+            translate([0, 0, top_z_offset]) difference() {
+                //adjusted arm (shorter)
+                intersection () {
+                    cylinder(r = arms_outer_d / 2, h = core_h + core_center_h, center = true);
+                    translate([1, 0, 0]) cylinder(r = arms_outer_d / 2, h = core_h + core_center_h, center = true);
+                }
+                intersection () {
+                    cylinder(r = arms_inner_d / 2, h = core_h + core_center_h + 1, center = true);
+                    translate([1, 0, 0]) cylinder(r = arms_inner_d / 2, h = core_h + core_center_h + 1, center = true);
+                }
+                translate([0, arms_outer_d / 2, 0]) cube([arms_outer_d, arms_outer_d, arms_outer_d], center = true);
+            }
+            //rounded arm end
+            translate([(arms_outer_d + arms_inner_d) / 4, 0, top_z_offset]) cylinder(r = 3.5 / 2, h = core_h + core_center_h, center = true, $fn = 40);
+            //adjusted arm
+            translate([-((arms_outer_d + arms_inner_d) / 4)  + 1, 0, top_z_offset]) cylinder(r = 3.5 / 2, h = core_h + core_center_h, center = true, $fn = 40);
+            difference () {
+                rotate([0, 0, -120]) translate([13.75, 0, top_z_offset]) cube([16, 20, core_h + core_center_h], center = true);
+                //remove piece from adjusted arm
+                translate([-19, -14, 0]) rotate([0, 0, 10]) cube([4, 4, 30], center = true);
+                //remove piece from non-adjusted arm
+                rotate([0, 0, 45]) translate([-19, -14, 0]) rotate([0, 0, -10]) cube([4, 4, 30], center = true);
+                rotate([0, 0, -120 - 37]) translate([18, 0, top_z_offset]) {
+                    cylinder(r = 6.8 / 2, h = 30, center = true);
+                    translate([-4, -2, 0]) cube([4, 4, 30], center = true);
+                }
+                rotate([0, 0, -120 + 37]) translate([18, 0, top_z_offset]) {
+                    cylinder(r = 6.8 / 2, h = 30, center = true);
+                    translate([-4, 2, 0]) cube([4, 4, 30], center = true);
+                }
+            }
+        }
+        //film void (notches)
+        rotate([0, 0, -120]) {
+            translate([20, -5, 0]) {
+                rotate([0, 0, 45]) {
+                    cube([20, film_void, 30], center = true);
+                }
+            }
+        }
+        rotate([0, 0, -120]) {
+            translate([20, 5, 0]) {
+                rotate([0, 0, -45]) {
+                    cube([20, film_void, 30], center = true);
+                }
+            }
+        }
+        
+        //flatten piece
+        rotate([0, 0, -120]) translate([25, 0, 0]) difference () {
+            cylinder(r = 8 / 2, h = 30, center = true);
+            translate([-6.9, 0, 0]) cube([8, 8, 30], center = true);
+        }
+        cylinder(r = core_void_outer_d / 2, h = core_void_h, center = true);
+        rotate([0, 0, -120]) translate([20, 0, -1.5]) rotate([0, 0, 45]) cube([20, 20, 3.01], center = true);
+        cylinder(r = void_d / 2, h = 30, center = true);
+        translate([0, 0, -7.2]) spiral_bottom_insert_void();
+    }
+}
+
+module spiral_bottom_insert_void () {
+    intersection () {
+        rotate([0, 45, 0]) cube([3, INSERT_D + 2, 3], center = true);
+        cylinder(r = (INSERT_D + 1) / 2, h = 6, center = true);
+    }
+    intersection () {
+        rotate([0, 45, 90]) cube([3, INSERT_D + 2, 3], center = true);
+        cylinder(r = (INSERT_D + 1) / 2, h = 6, center = true);
+    }
+}
+
+module gnal_spiral_bottom_insert_s8 () {
+    $fn = 160;
+    void_d = 18 - .3;
+    H = 17;
+    D2 = INSERT_D;
+    
+    translate([0, 0, 0]) difference () {
+        union () {
+            cylinder(r = void_d / 2, h = H, center = true);
+            //skirt
+            translate([0, 0, -(H - 1) / 2]) cylinder(r = D2 / 2, h = 1.5, center = true);
+            //notches
+            translate([0, 0, -((H - 2.5) / 2) - .1]) {
+                intersection () {
+                    cylinder(r = D2 / 2, h = 6, center = true);
+                    difference () {
+                        rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
+                        translate([0, 0, -1.5]) cube([6, D2 + 3, 3], center = true);
+                    }
+                }
+                intersection () {
+                    cylinder(r = D2 / 2, h = 6, center = true);
+                    rotate([0, 0, 90]) difference () {
+                        rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
+                        translate([0, 0, -1.5]) cube([6, D2 + 3, 3], center = true);
+                    }
+                }
+            }
+        }
+        translate([0, 0, -LEN / 2]) metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length=LEN);
+    }
+}
+
+module gnal_spiral_bottom_insert_16 () {
+    $fn = 160;
+    
+    void_d = 18 - .3;
+    H = 17 + 8;
+    D2 = INSERT_D;
+    
+    RIDGES = 8;
+    RIDGE_D = 3;
+    
+    translate([0, 0, 0]) difference () {
+        union () {
+            cylinder(r = void_d / 2, h = H, center = true);
+            //skirt
+            translate([0, 0, -(H - 1) / 2]) cylinder(r = D2 / 2, h = 1.5, center = true);
+            //notches
+            translate([0, 0, -((H - 2.5) / 2) - .1]) {
+                intersection () {
+                    cylinder(r = D2 / 2, h = 6, center = true);
+                    difference () {
+                        rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
+                        translate([0, 0, -1.5]) cube([6, D2 + 3, 3], center = true);
+                    }
+                }
+                intersection () {
+                    cylinder(r = D2 / 2, h = 6, center = true);
+                    rotate([0, 0, 90]) difference () {
+                        rotate([0, 45, 0]) cube([3, D2 + 2, 3], center = true);
+                        translate([0, 0, -1.5]) cube([6, D2 + 3, 3], center = true);
+                    }
+                }
+            }
+        }
+        translate([0, 0, -(H / 2) - 2]) metric_thread (diameter=OD, pitch=PITCH, thread_size = THREAD, length=LEN + 8);
+        translate([0, 0, 8.5]) {
+            for (i = [0: RIDGES - 1]) {
+                rotate([0, 0, i * (360 / RIDGES)]) translate([void_d / 2, 0, 0]) cylinder(r = RIDGE_D / 2, h = 8.1, center = true);
+            }
+        }
+    }
+}
+
+/**
+ * Spacers
+ **/
+
+module spacer_ridges () {
+    ridges = 16;
+    for (i = [0 : ridges]) {
+        rotate([0, 0, i * (360 / ridges)]) translate([13.5, 0, 0]) cylinder(r = 1.25, h = 8, $fn = 60);
+    }
+}
+
+module spacer_ridges_loose () {
+    ridges = 16;
+    intersection () {
+        union () {
+            for (i = [0 : ridges]) {
+                rotate([0, 0, i * (360 / ridges)]) translate([13.7, 0, 0]) cylinder(r = 1.25, h = 8, $fn = 60);
+            }
+        }
+        cylinder(r = 13.7, h = 12, center = true);
+    }
+}
+module spacer_outer_ridges () {
+    ridges = 24;
+    H = 6.5;
+    difference () {
+        union () {
+            for (i = [0 : ridges]) {
+                rotate([0, 0, i * (360 / ridges)]) translate([14.6, 0, -4.75]) cylinder(r = 1.25, h = 8, $fn = 30);
+            }
+        }
+        translate([0, 0, -4.1]) difference () {
+            cylinder(r = 33 / 2, h = 4, center = true, $fn = 100);
+            cylinder(r2 = 33 / 2, r1 = 27.75 / 2, h = 4.1, center = true, $fn = 100);
+        }
+    }
+}
+module gnal_spacer () {
+    add = 3.25;
+    core_d = 29.5;
+    core_bottom_d = 26.2 + .2;
+    void_d = 22.5;
+    h = 8 + add;
+    translate([0, 0, (add / 2) - 1]) difference () {
+        union () {
+            difference () {
+                cylinder(r = core_d / 2, h = h, center = true, $fn = 200);
+                translate([0, 0, 8]) cylinder(r = core_bottom_d / 2, h = h, center = true, $fn = 200);
+                cylinder(r = void_d / 2, h = h + 1, center = true, $fn = 200);
+            }
+            translate([0, 0, 0]) spacer_ridges_loose();
+            spacer_outer_ridges();
+        }
+        //trim top
+        translate([0, 0, h - 0.1]) cylinder(r = (core_d + 1) / 2, h = h, center = true, $fn = 200);
+        //trim bottom
+        translate([0, 0, -h + 0.9]) cylinder(r = (core_d + 1) / 2, h = h, center = true, $fn = 200);
+        //finger grips
+        //translate([0, 24, 0]) rotate([-6, 0, 0]) cylinder(r = 10, h = 6, center = true, $fn = 100);
+        //translate([0, -24, 0]) rotate([6, 0, 0]) cylinder(r = 10, h = 6, center = true, $fn = 100);
+    }
+}
+
+module gnal_spacer_16 () {
+    core_d = 29.5;
+    core_bottom_d = 26.2 + .2;
+    void_d = 18;
+    h = 8;
+    
+    RIDGES = 8;
+    RIDGE_D = 3;
+    translate([0, 0, 0]) difference () {
+        union () {
+            difference () {
+                cylinder(r = core_d / 2, h = h, center = true, $fn = 200);
+                cylinder(r = void_d / 2, h = h + 1, center = true, $fn = 200);
+            }
+            translate([0, 0, -.75]) rotate([0, 180, 0]) spacer_outer_ridges();
+        }
+    }
+    translate([0, 0, 0]) {
+            for (i = [0: RIDGES - 1]) {
+                rotate([0, 0, i * (360 / RIDGES)]) translate([void_d / 2, 0, 0]) cylinder(r = RIDGE_D / 2, h = 8, center = true);
+            }
+        }
+}
+
+/**
+ * Spokes
+ **/
+
+module triangle_void () {
+    length = (81 / 2) - 9;
+    width = 12;
+    height = 4.5 + 2.7;
+    ANGLE_A = 34.8;
+    ANGLE_B = 180 / SPOKE_COUNT;
+    difference () {
+        translate([-1, 0, 0]) cube([length, width, height], center = true);
+        translate([0, 10.3, 0]) rotate([0, 0, ANGLE_B]) cube([length * 2, width, height + 1], center = true);   
+        translate([0, -10.3, 0]) rotate([0, 0, -ANGLE_B]) cube([length * 2, width, height + 1], center = true);
+
+        translate([0, 10.3, -.7]) rotate([ANGLE_A, 0, 0]) cube([length *2, width, height * 10], center = true);   
+        translate([0, -10.3, -.7]) rotate([-ANGLE_A, 0, 0]) cube([length *2, width, height * 10], center = true);
+    }  
+}
+
+module triangle_void_2 () {
+    length = 43 - 8;
+    width = 12;
+    height = 4.5 + 2.7;
+    ANGLE_A = 34.8;
+    ANGLE_B = 90 / SPOKE_COUNT;
+    angle_w = 10.2;
+    difference () {
+        translate([-1, 0, 0]) cube([length, width, height], center = true);
+        translate([0, angle_w, 0]) rotate([0, 0, ANGLE_B]) cube([length *2, width, height * 10], center = true);   
+        translate([0, -angle_w, 0]) rotate([0, 0, -ANGLE_B]) cube([length *2, width, height * 10], center = true);
+
+        translate([0, angle_w, -.7]) rotate([ANGLE_A, 0, 0]) cube([length *2, width, height * 10], center = true);   
+        translate([0, -angle_w, -.7]) rotate([-ANGLE_A, 0, 0]) cube([length *2, width, height * 10], center = true);
+    }  
+}
+
+module triangle_void_3 () {
+    length = 32;
+    width = 10;
+    height = 4.5 + 2.7;
+    ANGLE_A = 31;
+    ANGLE_B = 45 / SPOKE_COUNT;
+    angle_w = 7.8;
+    difference () {
+        translate([-1, 0, 0]) cube([length, width, height], center = true);
+        translate([0, angle_w, 0]) rotate([0, 0, ANGLE_B]) cube([length *2, width, height * 10], center = true);   
+        translate([0, -angle_w, 0]) rotate([0, 0, -ANGLE_B]) cube([length *2, width, height * 10], center = true);
+
+        translate([0, angle_w, -.7]) rotate([ANGLE_A, 0, 0]) cube([length *2, width, height * 10], center = true);   
+        translate([0, -angle_w, -.7]) rotate([-ANGLE_A, 0, 0]) cube([length *2, width, height * 10], center = true);
+    }  
 }
\ No newline at end of file
diff --git a/scripts/v3.sh b/scripts/v3.sh
new file mode 100644
index 0000000..3d64905
--- /dev/null
+++ b/scripts/v3.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+V="v3"
+
+echo "Rendering GNAL ${V}"
+
+VERSION=`bash ./scripts/version.sh`
+CPU=`bash ./scripts/cpu.sh`
+DIST=./stl
+IMG=./img
+
+NOTES=./notes/${V}.csv
+FILES=( "spacer" "top" "spiral" "insert_s8" "insert_16" "spacer_16" )
+SIZES=( "50ft" "100ft" ) 
+
+mkdir -p $DIST
+
+echo "version,cpu,file,file_hash,file_size,source_hash,source_size,facets,volume,render_time" > $NOTES
+
+for SIZE in "${SIZES[@]}"
+do
+	:
+	mkdir -p "${DIST}/${SIZE}_${V}"
+	scad="${SIZE}_${V}/gnal_${SIZE}.scad"
+	srchash=`sha256sum "${scad}" | awk '{ print $1 }'`
+	srcsize=`wc -c < "${scad}"`
+	srcsize=`echo $srcsize | xargs`
+
+	for FILE in "${FILES[@]}"
+	do
+	   : 
+	    stl="${DIST}/${SIZE}_${V}/gnal_${SIZE}_${FILE}.stl"
+	    png="${IMG}/gnal_${SIZE}_${V}_${FILE}.png"
+	    echo "${scad} - ${FILE}"
+	    start=`date +%s`
+		openscad -o "$stl" -D "PART=\"${FILE}\"" "${scad}"
+		end=`date +%s`
+		runtime=$((end-start))
+		hash=`sha256sum "$stl" | awk '{ print $1 }'`
+		fileSize=`wc -c < "$stl"`
+		fileSize=`echo $fileSize | xargs`
+		ao=`admesh -c "$stl"`
+		facets=`echo "$ao" | grep "Number of facets" | awk '{print $5}'`
+		volume=`echo "$ao" | grep "Number of parts"  | awk '{print $8}'`
+		line="${VERSION},${CPU},$stl,$hash,$fileSize,$srchash,$srcsize,$facets,$volume,$runtime"
+		echo "$line" >> $NOTES
+		echo "$line"
+
+		echo "Rendering image of ${stl}..."
+
+		if [ "${FILE}" -eq "spiral"]; then
+			tmp=`mktemp`
+			fullPath=`realpath "${stl}"`
+			data="import(\"${fullPath}\");"
+			echo > "${tmp}.scad"
+			openscad -o "$png" --preview --imgsize=1920,1080 --colorscheme=DeepOcean -D "PART=\"${FILE}\"" "${tmp}.scad"
+		else
+			openscad -o "$png" --preview --imgsize=1920,1080 --colorscheme=DeepOcean -D "PART=\"${FILE}\"" "${scad}"
+		fi
+	done
+done
\ No newline at end of file