// ensure that the part length is at least the length of bushing barrel plus add
function adjust_bushing_len(conf_b, h, add=layer_height*2) = ((conf_b[2]+add) > h) ? conf_b[2]+add : h;
+
//distance from the flat side of bushing holder to rod center
function bushing_foot_len(conf_b, h=10.5, add=4*single_wall_width) = ((conf_b[1]+add) > h) ? conf_b[1]+add : h;
translate([0, 0, -0.01]) cylinder(r = conf_b[1], h = adjust_bushing_len(conf_b, h) + 0.02);
}
-module linear_bearing_negative_single(conf_b=bushing_xy, h=0){
- // as above but moved by 3 layers up
- translate([0, 0, -0.01+3*layer_height]) cylinder(r = conf_b[1], h = adjust_bushing_len(conf_b, h) + 0.02);
+module linear_bearing_negative_single(conf_b=bushing_xy, h=0, shadow=false){
+ // barrel with the dimensions of the bearing
+ translate([0, 0, -0.01 + 3 * layer_height]) cylinder(r = conf_b[1], h = adjust_bushing_len(conf_b, h) + 0.02);
+ if (shadow == false) {
+ translate([0, -conf_b[1]+1, -0.01 + 3 * layer_height]) cube([30, 2 * conf_b[1] - 2, adjust_bushing_len(conf_b, h) + 0.02]);
+ }
}
module linear_bushing_single(conf_b=bushing_xy, h=0) {
linear_bushing_negative_single(conf_b, h=adjust_bushing_len(conf_b, h));
}
-module linear_bearing_negative(conf_b = bushing_xy, h = 0){
+module linear_bearing_negative(conf_b = bushing_xy, h = 0, shadow=false){
//same as linear_bushing_negative, but with z direction constrained parts
translate([0,0,-0.1]) cylinder(r = conf_b[0] + single_wall_width, h=adjust_bushing_len(conf_b, h, 8*layer_height)+0.2);
//lower bearing
- linear_bearing_negative_single(conf_b);
+ linear_bearing_negative_single(conf_b, 0, shadow);
if (h > 2*conf_b[2] + 9*layer_height){
- translate([0,0,h]) mirror([0,0,1]) linear_bearing_negative_single(conf_b);
+ translate([0,0,h]) mirror([0,0,1]) linear_bearing_negative_single(conf_b, 0, shadow);
}
}
}
}
-
module linear_bearing(conf_b=bushing_xy, h=0){
difference() {
union() {
difference(){
union(){
//main block
- translate([-bushing_foot_len(conf_b), -7, 0]) cube([4, 14, adjust_bushing_len(conf_b, h, 9*layer_height)]);
+ //translate([-bushing_foot_len(conf_b), -7, 0]) cube([4, 14, adjust_bushing_len(conf_b, h, 9*layer_height)]); <- removed for duplicity:)
translate([0,0,0]) cylinder(h = adjust_bushing_len(conf_b, h, 9*layer_height), r=bushing_outer_radius(conf_b), $fn=60);
}
//smooth entry cut
translate([12,0,-1]) rotate([0,0,45]) cube([20, 20, 200], center=true);
}
intersection(){
- translate([0, -(bushing_outer_radius(conf_b)), 0]) cube([100, 2*bushing_outer_radius(conf_b) , 200]);
+ translate([0, -(bushing_outer_radius(conf_b)), 0]) cube([30, 2*bushing_outer_radius(conf_b) , max(h, conf_b[2] + 9 * layer_height)]);
union() {
// upper clamp for long holders
- if (h > 2*conf_b[2] + 9*layer_height){
- translate ([0,0, h - (conf_b[2]+3*layer_height)/2]) bearing_clamp(conf_b, 2*(bushing_outer_radius(conf_b)));
+ if (h > 2*conf_b[2] + 9*layer_height || conf_b[2] > 45){
+ translate ([0,0, max(h, conf_b[2]) - 8 ]) bearing_clamp(conf_b, 2*(bushing_outer_radius(conf_b)));
}
//lower clamp
- translate ([0,0,conf_b[2]/2+1]) bearing_clamp(conf_b, 2*(bushing_outer_radius(conf_b)));
+ translate ([0, 0, 10]) bearing_clamp(conf_b, 2*(bushing_outer_radius(conf_b)));
}
}
}
}
// this should be more parametric
-module firm_foot(){
+module firm_foot(conf_b = conf_b_lm8uu){
difference(){
union() {
- translate([3-0.25,0,0]) cube_fillet([8.5,42,20], top=[11,0,11,0], center=true);
+ translate([8.5/2,0,0]) cube_fillet([8.5, 42 + xy_delta * 2, 20], top=[11, 0, 11, 0], center=true);
}
- translate([7,14,0]) rotate([0,-90,0]) screw();
- translate([7,-14,0]) rotate([0,-90,0]) screw();
+ translate([9, 14.5 + xy_delta, 0]) rotate([0, -90, 0]) screw(head_drop=1, $fn=small_hole_segments);
+ translate([9,-14.5 - xy_delta, 0]) rotate([0,-90,0]) screw(head_drop=1,$fn=small_hole_segments);
}
}
-module y_bearing(){
+module y_bearing(conf_b=bushing_xy){
difference() {
union() {
difference() {
- translate([-9 - xy_delta, 0, 10]) firm_foot();
- linear_negative_preclean();
+ union() {
+ translate([-bushing_foot_len(conf_b), 0, 10]) firm_foot();
+ if (bushing_xy[2] > 45) {
+ translate([-bushing_foot_len(conf_b), 0, adjust_bushing_len(bushing_xy, 45) - 8]) mirror([0, 0, 1]) firm_foot();
+ }
+ }
+ linear_negative_preclean();
}
linear();
}
- //linear_negative(bushing_xy, 20);
+ //linear_negative(bushing_xy, 20);
}
}
rotate([90, 0, 0]) {
difference(){
union(){
- translate([m4_nut_diameter / 2 + conf_b[1], 0, 0])
+ translate([m3_diameter / 2 + conf_b[1] + 0.3, 0, 0])
cylinder(h=h, r = m4_nut_diameter / 2 + 0.5, center = true);
- translate([m4_nut_diameter/2+conf_b[1],0,0]) {
+ translate([m3_diameter / 2 + conf_b[1] + 0.3, 0, 0]) {
bearing_clamp_brick(conf_b, h);
rotate([0,0,35])
bearing_clamp_brick(conf_b, h);
}
}
- translate([m4_nut_diameter / 2 + conf_b[1], 0, 0])
- cylinder(r=m3_diameter/2, h=h+2, center=true);
+ translate([m3_diameter / 2 + conf_b[1] + 0.3, 0, 0]) {
+ cylinder(r=m3_diameter / 2, h=h+2, center=true,$fn=small_hole_segments);
+ %cylinder(r=m3_diameter / 2, h=h+2, center=true,$fn=small_hole_segments);
+ }
}
}
}
-module linear_negative(conf_b = bushing_xy, h = 0){
+module linear_negative(conf_b = bushing_xy, h = 0, shadow=false){
//selects right negative based on type
if (conf_b[3] == 0) {
- linear_bearing_negative(conf_b, h);
+ linear_bearing_negative(conf_b, h, shadow);
} else {
- linear_bushing_negative(conf_b, h);
+ linear_bushing_negative(conf_b, h, shadow);
}
}
module linear(conf_b = bushing_xy, h = 0){
- //selects right negative based on type
+ //selects right model based on type
if (conf_b[3] == 0) {
linear_bearing(conf_b, h);
} else {
linear_bushing(conf_b, h);
}
- %linear_negative(conf_b, h);
+ %linear_negative(conf_b, h, true);
}
-%cylinder(r=bushing_xy[0], h=90);
+if (i_am_box == 1) {
+ %cylinder(r=bushing_xy[0], h=90);
-y_bearing();
-translate([0,52,0]) y_bearing();
+ y_bearing();
+ translate([0,52,0]) y_bearing();
-if (bushing_xy[2] <50) {
- translate ([-30,23,0]) mirror([1,0,0]) y_bearing();
+ if (bushing_xy[2] < 45) {
+ translate ([-30,23,0]) mirror([1,0,0]) y_bearing();
+ }
+} else {
+ cube([0.1, 0.1, 0.1]);
}
HCoop / clinton / prusa3.git / blobdiff