Initial commit

.gitmodules

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+[submodule "scad/common"]
+	path = scad/common
+	url = https://git.sixteenmillimeter.com/modules/common.git

README.md

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+# 110 Cartridge
+
+This module contains a 3D printable 110 cartridge for downspooling 16mm guage film for use with 110 still cameras.
+Previously this was called the "minolta16_cartridge" on this site but it is compatible with all standard 110 cameras.
+
+This design requires loading in a changing bag or completely dark room.
+Initially this was created for [FDM printers](https://en.wikipedia.org/wiki/Fused_filament_fabrication), but updates can be made to the design for it to be used with resin [SLA printers](https://en.wikipedia.org/wiki/Stereolithography).
+It does not have a top cover on the cartridge itself, currently, because of the minimum z-height for FDM printing but SLA printers should be able to make a cartridge thin enough that it can support a cover.
+
+The actual opaqueness of available printing materials is another concern, which is why this design is recommended to use only in a changing bag or darkened room.
+If there is any light transmission at all, this can compromise the film by fogging or flashing it.
+
+-----
+
+## 110 Cartridge Body
+
+This is the main body of the cartridge and is one of only two absolutely necessary parts to print to be able to load and shoot film; the other being the takeup insert.
+Film is loaded into the feed (smaller) side of the cartridge and threaded through to the takeup side and affixed to the takeup insert
+
+![110 Cartridge Body](./img/110_cartridge_body.jpg)
+
+[Download STL](./stl/110_cartridge_body.stl)
+
+-----
+
+## 110 Cartridge Takeup Insert
+
+This takeup insert is where film is affixed and wound around it while the camera advances between frames.
+
+![110 Cartridge Takeup Insert](./img/110_cartridge_takeup.jpg)
+
+[Download STL](./stl/110_cartridge_takeup.stl)
+
+-----
+
+## 110 Cartridge Case
+
+This is the case for the cartridge.
+It should not be considered light safe without testing.
+As mentioned above, 3D printed materials have different levels of light transmission, even if they are completely black.
+
+![110 Cartridge Case](./img/110_cartridge_case.jpg)
+
+[Download STL](./stl/110_cartridge_case.stl)
+
+-----
+
+## 110 Cartridge Cover
+
+![110 Cartridge Cover](./img/110_cartridge_cover.jpg)
+
+[Download STL](./stl/110_cartridge_cover.stl)

meta.json

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+{
+	"camera" : {
+		"x" : 0,
+		"y" : 0,
+		"z" : 0,
+	},
+	"objects": [
+		{
+			"name": "110_cartridge_case",
+			"material": "black_plastic",
+			"position": {
+				"x": 0,
+				"y": 0,
+				"z": -40
+			},
+			"rotation": {
+				"x": 0,
+				"y": 0,
+				"z": 0
+			}
+		},
+		{
+			"name": "110_cartridge_body",
+			"material": "black_plastic",
+			"position": {
+				"x": 0,
+				"y": 0,
+				"z": 0
+			},
+			"rotation": {
+				"x": 0,
+				"y": 0,
+				"z": 0
+			}
+		},
+		{
+			"name": "110_cartridge_takeup",
+			"material": "black_plastic",
+			"position": {
+				"x": -21,
+				"y": 0,
+				"z": 35
+			},
+			"rotation": {
+				"x": 0,
+				"y": 0,
+				"z": 0
+			}
+		},
+		{
+			"name": "110_cartridge_takeup",
+			"material": "black_plastic",
+			"position": {
+				"x": 0,
+				"y": 0,
+				"z": 45
+			},
+			"rotation": {
+				"x": 180,
+				"y": 0,
+				"z": 180
+			}
+		}
+	],
+	"src" : [
+		"README.md",
+		"LICENSE",
+		"scad.sh",
+		"scad/110_cartridge.scad",
+		"scad/common/common.scad",
+		"scad/common/c14n_stl.py",
+		"scad/common/scad.sh"
+	]
+}

scad.sh

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+#!/bin/bash
+
+bash scad/common/scad.sh scad/110_cartridge.scad "${@}"

scad/110_cartridge.scad

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+use <./common/common.scad>;
+
+$fn = 150;
+
+SPACING = 42;
+WALL_THICKNESS = 1.25 + .5;
+
+PLANE_BACK = 1.55;
+
+CART_H = 16.85 + .75;
+
+FEED_D = 19.14;
+TAKEUP_D = 22.04;
+
+TAKEUP_OFFSET_Y = -(TAKEUP_D - FEED_D) / 2;
+
+CONNECT_X = SPACING - (TAKEUP_D / 2) - (FEED_D / 2) + 2;
+CONNECT_Y = 8.85;
+CONNECT_Z = 1.3;
+
+CONNECT_OFFSET_X = ((TAKEUP_D / 2) - (FEED_D / 2)) / 2;
+CONNECT_OFFSET_Y = (FEED_D / 2) - (CONNECT_Y / 2) - 5.02;
+CONNECT_OFFSET_Z = -(CART_H / 2) + (CONNECT_Z / 2);
+
+FILM_NEG_Y = .75;
+
+FILM_NEG_OFFSET_Y = 8.5;
+
+CAP_LIP_H = 5.92;
+CAP_LIP = .56;
+CAP_THICKNESS = .5;
+
+TOP_H = 1;
+
+
+module 110_cartridge_case () {
+    H = 19;
+    
+    FOD = FEED_D + 3;
+    FID = FEED_D + .5;
+    TOD = TAKEUP_D + 3;
+    TID = TAKEUP_D + .5;
+    MID = 17;
+    MID_OFFSET = 2.55;
+
+    difference () {
+        union () {
+            translate([SPACING / 2, 0, 0]) cylinder(r = R(FOD), h = H, center = true);
+            translate([-SPACING / 2, TAKEUP_OFFSET_Y, 0]) cylinder(r = R(TOD), h = H, center = true);
+            translate([0, MID_OFFSET, 0]) cube([SPACING, MID, H], center = true);
+        }
+        translate([0, 0, -1]) union () {
+            translate([SPACING / 2, 0, 0]) cylinder(r = R(FID), h = H, center = true);
+            translate([-SPACING / 2, TAKEUP_OFFSET_Y, 0]) cylinder(r = R(TID), h = H, center = true);
+            translate([0, MID_OFFSET - .25, 0]) cube([SPACING, MID - 2, H], center = true);
+        }
+    }
+}
+
+module 110_cartridge_cover () {
+    H = 4;
+    
+    FOD = FEED_D + 3;
+    TOD = TAKEUP_D + 3;
+    MID = 17;
+    MID_OFFSET = 2.55;
+
+    difference () {
+        union () {
+            translate([SPACING / 2, 0, 0]) cylinder(r = R(FOD + 3), h = H, center = true);
+            translate([-SPACING / 2, TAKEUP_OFFSET_Y, 0]) cylinder(r = R(TOD + 3), h = H, center = true);
+            translate([0, MID_OFFSET, 0]) cube([SPACING, MID + 3, H], center = true);
+        }
+        translate([0, 0, 1.5]) union () {
+            translate([SPACING / 2, 0, 0]) cylinder(r = R(FOD), h = H, center = true);
+            translate([-SPACING / 2, TAKEUP_OFFSET_Y, 0]) cylinder(r = R(TOD), h = H, center = true);
+            translate([0, MID_OFFSET, 0]) cube([SPACING, MID, H], center = true);
+        }
+    }
+}
+
+module 110_cartridge_takeup () {
+    H = 15.95;
+    D = 15.5;
+    INNER_D = 14;
+    difference() {
+        cylinder(r = R(D), h = H, center = true);
+        translate([0, 0, .65]) cylinder(r = R(INNER_D), h = H, center = true);
+        translate([-3, 7, .65]) rotate([0, 0, 60]) cube([10, .5, H], center = true);
+    }
+    translate([0, 0, -(D / 2) + 1.5]) cylinder(r = R(4), h = 3, center = true);
+    for (i = [0:3]) {
+        rotate([0, 0, i * 90]) translate([(D / 4) - .75, 1.25, -(D / 2) + 1.5]) cube([(D / 2) + 1, 1, 3], center = true);
+    }
+}
+
+module 110_cartridge_takeup_cover () {
+    INNER_D = TAKEUP_D - WALL_THICKNESS;
+    difference () {
+        union () {
+            cylinder(r = R(TAKEUP_D), h = 1, center = true);
+            translate([TAKEUP_D / 4, TAKEUP_D / 4, 0]) {
+                cube([TAKEUP_D / 2, TAKEUP_D / 2, 1], center = true);
+            }
+            translate([0, 0, -1.5]) cylinder(r = R(13.87) + .2, h = 3, center = true);
+        }
+        translate([0, 0, .65]) cylinder(r = R(13.87) - .5, h = 100, center = true);
+    }
+    translate([(TAKEUP_D / 2) - 1, 7.5, -1]) cube([1.8, 1.8, 1.8], center = true);
+}
+
+module feed (pos = [0, 0, 0]) {
+    INNER_D = FEED_D - WALL_THICKNESS;
+    1_OFFSET_Z = (CART_H / 2) - (CAP_LIP_H / 2);
+  
+    translate(pos) difference () {
+        union () {
+            cylinder(r = R(FEED_D), h = CART_H, center = true);
+            translate([-FEED_D / 4, FEED_D / 4, 0]) {
+                cube([FEED_D / 2, FEED_D / 2, CART_H], center = true);
+            }
+        }
+        translate([0, 0, WALL_THICKNESS]) cylinder(r = R(INNER_D), h = CART_H, center = true);
+        //film neg
+        translate ([-FEED_D / 2, FILM_NEG_OFFSET_Y, WALL_THICKNESS / 2]) {
+            cube([FEED_D, FILM_NEG_Y, CART_H], center = true);
+        }
+    }
+}
+
+module feed_cap () {
+    cylinder(r = R(FEED_D), h = CART_H, center = true);
+}
+
+module feed_cap_neg () {
+    INNER_D = FEED_D - CAP_LIP;
+
+    difference () {
+        cylinder(r = R(FEED_D), h = CAP_LIP_H, center = true);
+        translate([0, 0, WALL_THICKNESS]) cylinder(r = R(INNER_D), h = CART_H, center = true);
+        translate([-FEED_D / 4, FEED_D / 4, 0]) {
+            cube([FEED_D / 2, FEED_D / 2, CART_H], center = true);
+        }
+    }
+}
+
+module takeup (pos = [0, 0, 0]) {
+    INNER_D = TAKEUP_D - WALL_THICKNESS;
+    translate(pos) difference () {
+        union () {
+            cylinder(r = R(TAKEUP_D), h = CART_H, center = true);
+            translate([TAKEUP_D / 4, TAKEUP_D / 4, 0]) {
+                cube([TAKEUP_D / 2, TAKEUP_D / 2, CART_H], center = true);
+            }
+        }
+        //notch
+        translate([0, 0, WALL_THICKNESS]) cylinder(r = R(INNER_D), h = CART_H, center = true);
+        //film neg
+        translate ([TAKEUP_D / 2, FILM_NEG_OFFSET_Y - TAKEUP_OFFSET_Y, WALL_THICKNESS / 2]) {
+            cube([TAKEUP_D, FILM_NEG_Y, CART_H], center = true);
+        }
+    }
+}
+
+module connector (pos = [0, 0, 0]) {
+    translate(pos) cube([CONNECT_X, CONNECT_Y, CONNECT_Z], center = true);
+}
+
+module 110_cartridge_body () {
+    feed([SPACING / 2, 0, 0]);
+    takeup([-SPACING / 2, TAKEUP_OFFSET_Y, 0]);
+    connector([CONNECT_OFFSET_X, CONNECT_OFFSET_Y, CONNECT_OFFSET_Z]);
+}
+
+PART = "body";
+
+if (PART == "case") {
+	rotate([180, 0, 0]) 110_cartridge_case();
+} else if (PART == "cover") {
+	110_cartridge_cover();
+} else if (PART == "takeup") {
+	110_cartridge_takeup();
+} else if (PART == "body") {
+    110_cartridge_body();
+}

scad/common

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+Subproject commit e2eeb27f173d739a174c0d147bcb62a16859e2d9