--- /dev/null
+eps = 0.01;
+infty = 100;
+
+body_w = 34;
+body_h = 30;
+foam_w = 3;
+
+screw_d1 = 19;
+screw_d2 = 16;
+screw_hole = 3.5;
+base_wall = 1.5;
+
+center_hole_d = 9;
+
+insert_h = 10;
+
+motor_angle_right = 4;
+
+wall = 1;
+
+difference() {
+ translate([-body_w/2, -body_h/2, 0])
+ cube([body_w, body_h, base_wall]);
+ // center hole
+ translate([0, 0, -eps])
+ cylinder(r = center_hole_d/2, h = base_wall + 2*eps);
+ // screw_d2 screw holes
+ for (y = [-1, 1]) scale([1, y, 1])
+ translate([0, screw_d2/2, -eps]) {
+ cylinder(r = screw_hole/2, h = base_wall + 2*eps, $fn=6);
+ translate([0, 0, base_wall/2])
+ cylinder(r1 = screw_hole/2,
+ r2 = screw_hole/2 + base_wall/2,
+ h = base_wall/2 + 2*eps, $fn = 6);
+ }
+ // screw_d1 screw holes
+ for (x = [-1, 1]) scale([x, 1, 1])
+ translate([screw_d1/2, 0, -eps]) {
+ cylinder(r = screw_hole/2, h = base_wall + 2*eps, $fn=6);
+ translate([0, 0, base_wall/2])
+ cylinder(r1 = screw_hole/2,
+ r2 = screw_hole/2 + base_wall/2,
+ h = base_wall/2 + 2*eps, $fn = 6);
+ }
+ // cable hole
+ translate([-body_w/2+foam_w+wall, -body_h/2+foam_w+wall, -eps])
+ cube([8, 6, base_wall + 2*eps]);
+}
+
+difference() {
+ rotate([0, motor_angle_right, 0]) difference() {
+ translate([-body_w/2+foam_w, -body_h/2+foam_w, -infty/2])
+ cube([body_w-2*foam_w, body_h-foam_w,
+ insert_h+base_wall+infty/2]);
+ translate([-body_w/2+foam_w+wall, -body_h/2+foam_w+wall, -infty/2])
+ cube([body_w-2*foam_w-2*wall, body_h-foam_w-2*wall,
+ insert_h+base_wall+infty/2+2*eps]);
+ }
+ translate([-infty/2, -infty/2, -infty+eps]) cube(infty);
+}
+