Screw hole

powder-loader.scad

@@ -8,6 +8,11 @@ top_height = 20;
 
 opening_sep = 0.1;
 
+screw_hole_diam = 2;
+screw_hole_depth = 12;
+screw_diam = 3;
+screw_spacer_diam = 10;
+
 border = 1;
 
 funnel_size = 1;
@@ -38,10 +43,19 @@ color("#777")
 overall_cylinder();
 
 module bottom() {
+    difference() {
+        union()
         for(i = [0:5]) {
             rotate([0, 0, i / 6 * 360])
             bottom_part();
         }
+
+        translate([0, 0, -1])
+        cylinder(d = screw_diam + 1, h = bottom_height + 2);
+
+        translate([0, 0, -1])
+        cylinder(d = screw_spacer_diam, h = 2 + 1);
+    }
 }
 
 center_to_bottom_opening_center = chamber_to_center + chamber_diam / 2;
@@ -80,10 +94,16 @@ color("#dd08")
 bottom();
 
 module top() {
+    difference() {
+        union()
         for(i = [0:5]) {
             rotate([0, 0, i / 6 * 360])
             top_part();
         }
+
+        translate([0, 0, -1])
+        cylinder(d = screw_hole_diam, h = screw_hole_depth + 1);
+    }
 }
 
 module top_part() {