Adjust centering of matte box

scad/bolex_matte_box.scad

@@ -3,11 +3,13 @@ use <./knobs/scad/knob.scad>;
 
 RAIL_SPACING_HALF_IN = 30;
 HALF_IN_RAIL_D = 13;
+BASE_Y = 97.5;
 ATTACH_H = 20;
 INDEX_CARD_X = 127;
 INDEX_CARD_Y = 76.2;
 INDEX_CARD_43 = (INDEX_CARD_Y / 3) * 4;
 
+
 module bolex_matte_box_rails_attach (pos = [0, 0, 0]) {
 	$fn = 100;
 
@@ -22,7 +24,7 @@ module bolex_matte_box_rails_attach (pos = [0, 0, 0]) {
 		translate([-RAIL_SPACING_HALF_IN / 2, 0, 0]) cylinder(r = R(HALF_IN_RAIL_D) + 0.3, h = ATTACH_H + 1, center = true);
 		cube([RAIL_SPACING_HALF_IN, 2, ATTACH_H + 1], center = true);
 		//m4 bolt
-		translate([0, ((HALF_IN_RAIL_D + 6) / 2) + 4, 2]) rotate([90, 0, 0]) {
+		translate([0, ((HALF_IN_RAIL_D + 6) / 2) + 4, 2]) rotate([90, 30, 0]) {
 			m4_nut(HALF_IN_RAIL_D + 6);
 			cylinder(r = R(4.25), h = 200, center = true, $fn = 50);
 		}
@@ -44,22 +46,38 @@ module bolex_matte_box_rails_cap (pos = [0, 0, 0]) {
 	}
 }
 
-module matte_box (pos = [0, 0, 0]) {
+module card_slot (pos = [0, 0, 0]) {
+	translate(pos) difference() {
+		cube([INDEX_CARD_43, INDEX_CARD_Y + 1,  1.5], center = true);
+		//bevel long edges
+		translate([0, (INDEX_CARD_Y + 1) / 2, 1.1]) rotate([60, 0, 0]) cube([INDEX_CARD_43, 2,  4], center = true);
+		translate([0, (INDEX_CARD_Y + 1) / 2, -1.1]) rotate([-60, 0, 0]) cube([INDEX_CARD_43, 2,  4], center = true);
+		translate([0, -(INDEX_CARD_Y + 1) / 2, 1.1]) rotate([-60, 0, 0]) cube([INDEX_CARD_43, 2,  4], center = true);
+		translate([0, -(INDEX_CARD_Y + 1) / 2, -1.1]) rotate([60, 0, 0]) cube([INDEX_CARD_43, 2,  4], center = true);
+	
+		//inside short edge
+		translate([-INDEX_CARD_43 / 2, 0, 1.1]) rotate([0, 60, 0]) cube([2, INDEX_CARD_Y + 1,  4], center = true);
+		translate([-INDEX_CARD_43 / 2, 0, -1.1]) rotate([0, -60, 0]) cube([2, INDEX_CARD_Y + 1,  4], center = true);
+	}
+}
+
+module matte_box (pos = [0, 0, 0], Hood = 20) {
 	translate(pos) {
 		translate([0, 0, 8 / 2]) difference () {
-			rounded_cube([INDEX_CARD_43, INDEX_CARD_Y + 8,  8], d = 5, $fn = 40, center = true);
-			cube([INDEX_CARD_43 - 12, INDEX_CARD_Y - 4,  8 + 1], center = true);
-			translate([2, 0, 0]) cube([INDEX_CARD_43, INDEX_CARD_Y + 1,  1.5], center = true);
+			rounded_cube([INDEX_CARD_43 + 4, INDEX_CARD_Y + 8,  8], d = 5, $fn = 40, center = true);
+			cube([INDEX_CARD_43 - 6, INDEX_CARD_Y - 2,  8 + 1], center = true);
+			card_slot([1.5, 0, 0]);
+			card_slot([10, 0, 0]);
+			translate([20, 0, -8 / 2]) cube([INDEX_CARD_43 - 6, INDEX_CARD_Y - 10,  8 ], center = true);
 		}
-		translate([0, 0, (10 / 2) + (20 / 2)]) difference () {
-			rounded_cube([INDEX_CARD_43, INDEX_CARD_Y + 8,  20],  d = 5, $fn = 40, center = true);
-			rounded_cube([INDEX_CARD_43 - 4, INDEX_CARD_Y + 8 - 4,  20 + 1],  d = 5, $fn = 40, center = true);
+		translate([0, 0, (10 / 2) + (Hood / 2)]) difference () {
+			rounded_cube([INDEX_CARD_43 + 4, INDEX_CARD_Y + 8, Hood], d = 5, $fn = 40, center = true);
+			rounded_cube([INDEX_CARD_43 - 4, INDEX_CARD_Y, Hood + 1], d = 5, $fn = 40, center = true);
 		} 
 	}
 }
 
 module bolex_matte_box () {
-	BASE_Y = 100;
 	BASE_DIST = BASE_Y - ((INDEX_CARD_Y + 8) / 2);
 	bolex_matte_box_rails_attach([0, -BASE_Y, 0]);
 	translate([0, (-BASE_DIST / 2) - ((INDEX_CARD_Y + 8) / 2)  + 4, 8 / 2]) {
@@ -67,7 +85,7 @@ module bolex_matte_box () {
 		translate([6, 0, 6]) cube([3, BASE_DIST - 4, 20], center = true); 
 		translate([-6, 0, 6]) cube([3, BASE_DIST - 4, 20], center = true); 
 	}
-	matte_box();
+	matte_box([-12.5, 0, 0]);
 }
 
 PART = "default";
@@ -76,4 +94,6 @@ if (PART == "default") {
 	bolex_matte_box();
 } else if (PART == "knob") {
 	knob(H = 10, D = 14, DEPTH = 4, BOLT = "M4", TYPE = "hex");
+} else if (PART == "rails_cap") {
+	bolex_matte_box_rails_cap();
 }