fuse_w = 40;
gear_w = fuse_w - 16;
-gear_l = 25;
+gear_l = 30;
spring_l = 6;
base_w = fuse_w - 10;
-base_l = gear_l + 3.5;
+base_l = gear_l + 5;
base_h = 0.5;
base_beam_w = spring_l + 2;
base_reinf_h = 1;
base_reinf_w = 1;
-rear_spring_l = 3;
-rear_beam_w = rear_spring_l + 3;
+rear_spring_l = 2.5;
+rear_spring_rear_l = 6;
+rear_beam_w = rear_spring_l + 4;
rear_spring_w = 3;
-rear_spring_bot_w = 7;
-rear_slot_w = 0.8;
+rear_spring_bot_w = 9;
+rear_slot_w = 1.2;
side_spring_bot_w = 3.5;
side_spring_w = 1.5;
hook_wall = 1;
-hook_in = 1.5;
+hook_in = 1.7;
hook_h = base_h + base_reinf_h/2;
+side_hook_angle = 7;
+side_hook_angle_cut = 17;
module body() {
// wide beam
cube([base_l - base_beam_w/2, base_reinf_w, base_reinf_h + eps]);
}
- // rear hook
+ // rear hook - front part
hull() {
translate([gear_l-rear_spring_bot_w/2, -rear_spring_l/2, base_h])
- cube([rear_spring_bot_w, rear_spring_l, eps]);
+ cube([rear_spring_bot_w/2-rear_slot_w/2, rear_spring_l, eps]);
translate([gear_l-rear_spring_w/2, -rear_spring_l/2, hook_h+hook_in+hook_wall-eps])
- cube([rear_spring_w, rear_spring_l, eps]);
+ cube([rear_spring_w/2-rear_slot_w/2, rear_spring_l, eps]);
+ }
+ // rear hook - rear part
+ hull() {
+ translate([gear_l + rear_slot_w/2, -rear_spring_rear_l/2, base_h])
+ cube([rear_spring_bot_w/2-rear_slot_w/2, rear_spring_rear_l, eps]);
+ translate([gear_l + rear_slot_w/2, -rear_spring_rear_l/2, hook_h+hook_in+hook_wall-eps])
+ cube([rear_spring_w/2-rear_slot_w/2, rear_spring_rear_l, eps]);
}
// side hooks
for (y = [-1, 1]) scale([1, y, 1]) intersection() {
- translate([0, gear_w/2, eps]) rotate([0, 0, -20])
+ translate([0, gear_w/2, eps]) rotate([0, 0, -side_hook_angle])
translate([-10, 0, 0]) hull() {
cube([20, side_spring_bot_w, base_h-eps]);
cube([20, side_spring_w, hook_h + hook_in + hook_wall-eps]);
translate([0, -base_w/2, base_h/2])
cube([base_beam_w, base_w, infty]);
// cut the front sides
- translate([0, gear_w/2 + 0.8, eps])
- rotate([0, 0, -30])
+ translate([0, gear_w/2 + 1.25, eps])
+ rotate([0, 0, -side_hook_angle_cut])
translate([-5, 0, 0])
cube(20);
translate([0, 0, -rear_beam_w/2-eps])
cylinder(h = rear_beam_w+2*eps, r = hook_in/2, $fn = 6);
// rear slot above the hole
- translate([gear_l-rear_slot_w/2, -rear_beam_w/2+eps, hook_h+hook_in/2])
- cube([rear_slot_w, rear_beam_w+2*eps, infty]);
+ // translate([gear_l-rear_slot_w/2, -rear_beam_w/2+eps, hook_h+hook_in/2])
+ // cube([rear_slot_w, rear_beam_w+2*eps, infty]);
// side slots
for (y = [-1, 1]) scale([1, y, 1]) {
translate([0, gear_w/2, hook_h+hook_in/2]) {
- rotate([0, 90, -20])
+ rotate([0, 90, -side_hook_angle])
translate([0, 0, -10])
cylinder(r = hook_in/2, h = 20, $fn = 6);
}