led_dia = 5 + 0.6;
led_depth = 5;
-led_tip_z = 70;
+led_tip_height_above_crossbar = 70;
led_angle = -60;
+crossbar_dia = 25; // fixme
vert_space_inside = 8;
backfront_space_inside = 12;
+width_space_inside = 10;
-backfront_mate_size = 20;
+backfront_mate_size = 25;
+tower_frontheight = 10;
+tower_base_height = 20;
+tower_slot_width = 3;
+
+cableclamp_ctie_width = 4.0 + 1.0;
+cableclamp_ctie_thick = 2.5 + 0.5;
+
+lidclamp_ctie_width = 4.0 + 1.0;
+lidclamp_ctie_thick = 2.5 + 0.5;
+
+base_ctie_width = 4.0 + 1.0;
+base_ctie_thick = 2.5 + 0.5;
+
+tube_ctie_width = 4.0 + 1.0;
+tube_ctie_thick = 2.5 + 0.5;
// tuning
tower_over_angle = 45;
tower_wall_thick = 1.6;
-tower_base_height = 5;
+tower_forehead_angle = 30;
+lid_wall_thick = 1.6;
+lid_slop = 0.75;
+//cableclamp_ctie_anchor = 5;
+lidclamp_cableclamp_ctie_between = 0;
+base_ctie_anchor = 5;
+tube_ctie_anchor = 5;
+protrusion_size = 2;
+protrusion_none_frontback = 10;
+protrusion_slop = 0.25;
+cableclamp_ctie_z = tower_frontheight/2;
+
+towerleg_backfront = 5;
+towerleg_width = 3;
+towerleg_foot_gap = 2;
+towerleg_foot_backfront = 20;
+towerleg_foot_width = 40;
+towerleg_foot_height = 10;
+towerleg_yslope = 0.7;
+towerleg_xslope = 0.3;
+echo(sqrt(towerleg_yslope*towerleg_yslope+towerleg_xslope*towerleg_xslope));
//--- tests ---
//--- real thing ---
-tower_frontheight = 30; //fixme
-tower_overhang = led_dia * 4;
+// calculated
+
+tower_overhang = led_dia * 2.5;
+tower_width = width_space_inside + tower_wall_thick*2;
tower_over_max_y = tower_overhang * sin(tower_over_angle);
tower_over_max_z = tower_frontheight + tower_overhang * cos(tower_over_angle);
tower_total_max_z = tower_over_max_z + vert_space_inside + led_depth;
tower_rearwall_y = -(backfront_space_inside + tower_wall_thick);
+led_head_y = tower_over_max_y/2;
+led_head_z = tower_frontheight + tower_overhang*sin(tower_over_angle)/2;
+backfront_mate_extra = (backfront_mate_size - (-tower_rearwall_y));
+
+tower_height_contribution = led_head_z + tower_base_height;
+
+base_ctie_anchor_eff = base_ctie_anchor+base_ctie_thick/2;
+tube_ctie_anchor_eff = tube_ctie_anchor+tube_ctie_thick/2;
-backfront_mate_extra = (backfront_mate_size - (-tower_rearwall_y))/2;
+base_width = 0.7 * crossbar_dia;
+base_backfront = backfront_mate_extra - tower_rearwall_y;
+base_height = led_tip_height_above_crossbar - tower_height_contribution;
+
+protrusion_frontback = base_backfront - protrusion_none_frontback;
+
+echo(tower_height_contribution, base_height);
module TowerWallCrossSection(){
// generates a 2D shape - a polygon
polygon([[0, 0],
[0, tower_frontheight],
[-tower_over_max_y, tower_over_max_z],
- [-tower_over_max_y, tower_total_max_z],
+ [-tower_over_max_y
+ + tan(tower_forehead_angle) * (vert_space_inside + led_depth),
+ tower_total_max_z],
[-tower_rearwall_y, tower_total_max_z],
[-tower_rearwall_y, 0],
- [-tower_rearwall_y+backfront_mate_extra, -tower_base_height],
- [ -backfront_mate_extra, -tower_base_height]]);
+ [-tower_rearwall_y, -tower_base_height],
+ [-backfront_mate_extra, -tower_base_height]],
+ convexity=5);
+}
+
+module TowerWallSomeEdge(front){
+ minkowski(){
+ difference(){
+ TowerWallCrossSection();
+ translate([front ? 0.10 : -0.10, 0])
+ TowerWallCrossSection();
+ }
+ circle(r=tower_wall_thick, $fn=8);
+ }
}
module TowerBulkCrossSection(){
intersection(){
TowerWallCrossSection();
union(){
- translate([-tower_over_max_y/2,
- tower_frontheight + tower_overhang*sin(tower_over_angle)/2])
+ translate([-led_head_y, led_head_z])
circle(r = led_depth);
+ TowerWallSomeEdge(true);
+ translate([-50, -50])
+ square([100, 50]);
+ }
+ }
+}
+
+module TowerRearWallCrossSection(){
+ intersection(){
+ TowerWallCrossSection();
+ union(){
+ intersection(){
+ translate([0,-10]) square([100, 10+led_head_z]);
+ TowerWallSomeEdge(false);
+ }
+ TowerBulkCrossSection();
}
}
}
-%TowerWallCrossSection();
-TowerBulkCrossSection();
+
+module TowerCrossSectionDemo(){
+ %TowerWallCrossSection();
+ //TowerBulkCrossSection();
+ TowerRearWallCrossSection();
+}
+
+module TowerMain(){
+ for (mir=[0,1])
+ mirror([mir,0,0]) rotate([90,0,-90]) {
+ translate([0,0, tower_width/2-tower_wall_thick])
+ linear_extrude(height=tower_wall_thick) {
+ TowerWallCrossSection();
+ }
+ translate([0,0,-1])
+ linear_extrude(height=tower_width/2+0.9)
+ union(){
+ TowerBulkCrossSection();
+ hull(){
+ intersection(){
+ TowerWallCrossSection();
+ translate([-30, -30])
+ square([30 + 0.1, 30 + tower_frontheight]);
+ }
+ }
+ }
+ translate([0,0, tower_slot_width/2])
+ linear_extrude(height=(tower_width - tower_slot_width)/2 - 0.2)
+ TowerRearWallCrossSection();
+ }
+}
+
+module LedHole(){
+ translate([0, led_head_y, led_head_z])
+ rotate([90 + led_angle, 0, 0])
+ translate([0,0,-10])
+ cylinder(r=led_dia/2, h=led_depth+1+10, $fn=26, $fa=10);
+}
+
+module TowerProper(){
+ difference(){
+ TowerMain();
+ LedHole();
+ // passages for cable ties
+ translate([0,
+ tower_rearwall_y/2,
+ cableclamp_ctie_z
+ + cableclamp_ctie_width/2 + lidclamp_ctie_thick/2
+ + lidclamp_cableclamp_ctie_between])
+ cube([50, lidclamp_ctie_width, lidclamp_ctie_thick], center=true);
+ translate([0,
+ (backfront_mate_extra+tower_rearwall_y)/2,
+ -tower_base_height
+ + max(protrusion_size + protrusion_slop + 0.1,
+ base_ctie_anchor_eff)])
+ cube([50, base_ctie_width, base_ctie_thick], center=true);
+// for (extra_y=[0, -(cableclamp_ctie_thick + cableclamp_ctie_anchor)]) {
+// translate([-tower_width/2,
+// -cableclamp_ctie_thick/2 - tower_wall_thick + extra_y,
+// cableclamp_ctie_z])
+// cube([tower_wall_thick+2,
+// cableclamp_ctie_thick,
+// cableclamp_ctie_width], center=true);
+// }
+ for (mir=[0,1])
+ mirror([mir,0,0]) {
+ translate([tower_width/4, 20, cableclamp_ctie_z])
+ cube([cableclamp_ctie_thick,
+ tower_wall_thick*2+1+40,
+ cableclamp_ctie_width],
+ center=true);
+ }
+ translate([0, tower_rearwall_y, -tower_base_height])
+ BaseRegistrationProtrusion(protrusion_slop);
+ }
+}
+
+module Tower(){ ////toplevel
+ TowerProper();
+ for (mir=[0,1]) {
+ mirror([mir,0,0]){
+ translate([0,
+ tower_rearwall_y + 0.1,
+ -1])
+ mirror([0,0,1])
+ multmatrix([[1,0, towerleg_xslope,0],
+ [0,1,-towerleg_yslope,0],
+ [0,0,1,0],
+ [0,0,0,1]])
+ cube([towerleg_width, towerleg_backfront, tower_base_height-2]);
+ }
+ }
+ translate([-towerleg_foot_width/2,
+ tower_rearwall_y - towerleg_foot_gap,
+ -tower_base_height])
+ mirror([0,1,0])
+ cube([towerleg_foot_width, towerleg_foot_backfront, towerleg_foot_height]);
+}
+
+module TowerMainHull(){
+ hull(){ TowerMain(); }
+}
+
+module Lid(){
+ intersection(){
+ difference(){
+ minkowski(){
+ TowerMainHull();
+ sphere(r=lid_wall_thick+lid_slop, $fn=8);
+ }
+ minkowski(){
+ TowerMainHull();
+ sphere(r=lid_slop, $fn=6);
+ }
+ }
+ translate([-50,-50,led_head_z]) cube([100,100,100]);
+ }
+}
+
+module LidT(){ ////toplevel
+ rotate([180,0,0]) Lid();
+}
+
+module BaseRegistrationProtrusion(extra){
+ size = protrusion_size + extra;
+ translate([0, base_backfront/2, 0]){
+ hull(){
+ translate([0,0, -0.5])
+ cube([protrusion_size*2, protrusion_frontback, 1.0], center=true);
+ translate([0, 0, protrusion_size-0.5])
+ cube([0.05, protrusion_frontback-protrusion_size*2, 1.0], center=true);
+ }
+ }
+}
+
+module Base(){
+ difference(){
+ mirror([0,0,1]){
+ hull(){
+ translate([-tower_width/2, 0, 0])
+ cube([tower_width, base_backfront, 0.1]);
+ translate([-base_width/2, 0, base_height])
+ cube([base_width, base_backfront, crossbar_dia/2]);
+ }
+ }
+ translate([0, base_backfront/2, -base_ctie_anchor_eff])
+ cube([100, base_ctie_width, base_ctie_thick], center=true);
+ translate([0, base_backfront/2, -base_height + tube_ctie_anchor_eff])
+ cube([100, tube_ctie_width, tube_ctie_thick], center=true);
+ translate([0, -1, -(base_height + crossbar_dia/2)])
+ rotate([-90,0,0])
+ cylinder(r=crossbar_dia/2, h=101);
+ }
+ BaseRegistrationProtrusion(0.0);
+}
+
+module BaseT(){ ////toplevel
+ rotate([90,0,0]) Base();
+}
+
+module Demo(){
+ Tower();
+ %Lid();
+ translate([0,0, 25]) Lid();
+ translate([0, tower_rearwall_y, -(tower_base_height+5)]) Base();
+}
+
+//TowerCrossSectionDemo();
+//TowerWallSomeEdge(false);
+//TowerWallFrontEdge();
+//TowerMainHull();
+//LidT();
+//Tower();
+//Lid();
+//BaseRegistrationProtrusion();
+//Base();
+//BaseT();
+//Demo();
~ianmdlvl / reprap-play.git / blobdiff