From 2580830863fba1f9e2107f2ea63029156f65b54d Mon Sep 17 00:00:00 2001
From: mmcw-dev <hi@mmcwilliams.com>
Date: Sat, 3 Nov 2018 03:19:14 -0400
Subject: [PATCH] 16mm looper design

---
 models/16mm_looper/16mm_looper.scad | 116 ++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 models/16mm_looper/16mm_looper.scad

diff --git a/models/16mm_looper/16mm_looper.scad b/models/16mm_looper/16mm_looper.scad
new file mode 100644
index 0000000..282dc46
--- /dev/null
+++ b/models/16mm_looper/16mm_looper.scad
@@ -0,0 +1,116 @@
+PLATTER_D = 254;
+PLATTER_THICKNESS = 3.25;
+//bearing holder
+BH_D = 115.85;
+BH_H = 16 - 3.84;
+//bearing
+BEARING_D = 28.75;
+BEARING_ID = 12.8;
+BEARING_H = 8;
+
+//alt bearings
+//BEARING_D = 20;
+//BEARING_ID = 8;
+//BEARING_H = 8;
+
+//bolt placement
+BOLT_D = 5;
+BOLT_W = 80.4;
+BOLT_HEAD_D = 6.36;
+BOLT_HEAD_H = 5;
+
+BOLT_HEX = 8.1;
+BOLT_HEX_H = 3.25;
+
+HANDLE_MOUNT_L = 305;
+HANDLE_MOUNT_W = 40;
+HANDLE_MOUNT_THICKNESS = 6;
+HANDLE_MOUNT_BOLT_L = 285;
+HANDLE_MOUNT_BOLT_D = 5;
+
+module hexagon(size, height) {
+  boxWidth = size/1.75;
+  for (r = [-60, 0, 60]) rotate([0,0,r]) cube([boxWidth, size, height], true);
+}
+
+module bolt_voids () {
+    $fn = 100;
+    for (i = [0 : 4]) {
+        rotate([0, 0, i * (360 / 4)]) translate([BOLT_W / 2, 0, 0]) cylinder(r = BOLT_D / 2, h = 50, center = true);    
+    }
+}
+
+module bolt_head_voids () {
+    for (i = [0 : 2]) {
+        rotate([0, 0, i * (360 / 2)]) {
+            translate([BOLT_W / 2, 0, (BH_H / 2) - BOLT_HEAD_H / 2 + 0.01]) {
+                cylinder(r = BOLT_HEAD_D / 2, h = BOLT_HEAD_H, center = true);
+            }
+        }    
+    }    
+}
+
+module bolt_hex_voids () {
+   rotate([0, 0, 90]) for (i = [0 : 2]) {
+        rotate([0, 0, i * (360 / 2)]) {
+            translate([BOLT_W / 2, 0, (BH_H / 2) - (BOLT_HEX_H / 2) + 0.01]) {
+                hexagon(BOLT_HEX, BOLT_HEX_H);
+            }
+        }    
+    } 
+    
+}
+
+module platter () {
+    difference () {
+        //main shape
+        cylinder(r = PLATTER_D / 2, h = PLATTER_THICKNESS, $fn = 360);
+        bolt_voids();
+        cylinder(r = (BEARING_ID - 4) / 2, h = 50, center = true, $fn = 60);
+    }
+}
+
+module bearing_holder () {
+    $fn = 100;
+    difference () {
+        //main shape
+        cylinder(r = BH_D / 2, h = BH_H, $fn = 360, center = true);
+        //bolts
+        bolt_voids();
+        bolt_head_voids();
+        bolt_hex_voids();
+        //inner void
+        cylinder(r = BEARING_ID / 2, h = 50, center = true, $fn = 60);
+        //bearing void
+        translate([0, 0, -(BH_H / 2) + (BEARING_H / 2) - 0.1]) {
+            cylinder(r = BEARING_D / 2, h = BEARING_H, center = true);
+        }
+    }
+}
+
+module bearing_holder_test () {
+    translate([0, 0, (PLATTER_THICKNESS / 2) + (BH_H / 2)]) {
+        intersection() {
+            bearing_holder();
+            translate([BH_D / 4 - 10, BH_D / 4 - 10, 0]) cube([BH_D / 2 + 20, BH_D / 2 + 20, BH_H + 2], center = true);
+        }
+    }
+}
+
+
+module handle_mount () {
+    difference() {
+        cube([HANDLE_MOUNT_W, HANDLE_MOUNT_L, HANDLE_MOUNT_THICKNESS], center = true);
+        translate ([0, HANDLE_MOUNT_BOLT_L / 2, 0]) {
+            cylinder(r = HANDLE_MOUNT_BOLT_D / 2, h = 10, center = true, $fn = 50);
+        }
+        translate ([0, -HANDLE_MOUNT_BOLT_L / 2, 0]) {
+            cylinder(r = HANDLE_MOUNT_BOLT_D / 2, h = 10, center = true, $fn = 50);
+        }
+        cylinder(r = HANDLE_MOUNT_BOLT_D / 2, h = 10, center = true, $fn = 50);
+    }
+}
+//platter();
+//projection() platter();
+//bolt_hex_voids();
+handle_mount();
\ No newline at end of file