y = 30;
diagonal = sqrt(pow(30/2, 2) + pow(30/2, 2));
opening_width = 8;
-opening_depth = 9;
-slot_major_width = 16.5;
inner_block = 12;
-inner_hole = 6.8 / 2;
-major_block_corner_diameter = 4;
-major_block_corner_radius = major_block_corner_diameter / 2;
-major_block = 30 - major_block_corner_diameter;
-
-corner_block_inner = (30 - 16.5) / 2;
+outer_block = (30 - 16.5) / 2;
wall = 2;
-$fn = 40;
-
-intersection(){
- minkowski() {
- square(x - major_block_corner_diameter, center=true);
- circle(major_block_corner_radius); }
-
- union(){
- square(inner_block / 2);
- rotate(45) translate([diagonal/2, 0]) square([diagonal, wall], center=true);
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); }
-
- mirror([1, -1]) {
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); } }
-
- rotate(90){
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); }
-
- mirror([1, -1]) {
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); } } }
-
- rotate(180){
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); }
-
- mirror([1, -1]) {
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); } } }
-
- rotate(270){
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); }
-
- mirror([1, -1]) {
- square(inner_block / 2);
- rotate(45) {
- translate([diagonal/2, 0]) {
- square([diagonal, wall], center=true); } }
- translate([x / 2-corner_block_inner, y / 2 - corner_block_inner]) {
- square([corner_block_inner, corner_block_inner]); }
- translate([opening_width / 2, y/2 - wall]) {
- square([(x - opening_width) / 2, wall]); } } } } }
+$fn = 100;
+
+module 3030_arm_half(){
+ // inner block
+ square(inner_block / 2);
+
+ // diagonal arms connecting inner block to outer blocks
+ rotate(45) {
+ square([diagonal - wall, wall / 2]); }
+
+ // outer block, without the wall part since wall has rounded corner
+ translate([x / 2 - outer_block, y / 2 - outer_block]) {
+ square(outer_block - wall); }
+
+ // outer arms covering the opening
+ translate([(opening_width + wall) / 2, y / 2 - wall]) {
+ square([(x - opening_width - wall) / 2 - wall, wall]); }
+ // rounded part at entrace to inside
+ translate([(opening_width + wall) / 2, (y - wall) / 2]){
+ circle(d = wall); }
+ // rounded part around outside of extrusion
+ corner_squish = 0.1;
+ translate([x / 2 - wall + corner_squish, y / 2 - wall + corner_squish]) {
+ circle(wall - corner_squish); } }
+
+module 3030_profile(){
+ arms = 4;
+ for(arm = [0:arms - 1]) {
+ rotate(arm * 360 / arms) {
+ 3030_arm_half();
+ mirror(){ 3030_arm_half(); } } } }
+
+module 3030_sleeve_profile(){
+ difference() {
+ square(40, true);
+ minkowski() {
+ 3030_profile();
+ circle(0.2);} } }
+
+module fillet(r) {
+ offset(-r) {
+ offset(r) {
+ children(); } } }
+
+module upper_arm_profile(){
+ square(40, true);
+
+ a = [20, -20];
+ b = [34.1, 0];
+ c = [6.25, 20];
+ points = [a, b, c];
+
+ arm_radius = 11.35;
+ arm_center = [61.8, 140.4];
+ hull() {
+ polygon(points);
+ translate(arm_center) {
+ circle(arm_radius); } } }
+
+module forearm_profile() {
+ fillet(-5) {
+ difference() {
+ upper_arm_profile();
+ translate([-20, -20]) {
+ square(151); } } } }
+
+module upper_arm_hull() {
+ linear_extrude(height = 15) {
+ upper_arm_profile(); } }
+
+module forearm_hull() {
+ linear_extrude(height = 120.5) {
+ forearm_profile(); } }
+
+module shoulder_hull() {
+ translate([-20, -20, 0]) {
+ cube([40, 40, 35]); } }
+
+shoulder_hull();
+upper_arm_hull();
+forearm_hull();
+
+original_spool_holder();
+
+module original_forearm_profile() {
+ %projection(true) {
+ translate([-315, 0, -80]) {
+ import("Spool-holder.stl"); } } }
+
+module original_upper_arm_profile() {
+ %projection(true) {
+ translate([-315, 0, -2]) {
+ import("Spool-holder.stl"); } } }
+
+module original_spool_holder() {
+ %translate([-315, 0, 0]) {
+ import("Spool-holder.stl"); } }
/*
This file is part of 3d-printables.