150 lines
4.5 KiB
OpenSCAD
150 lines
4.5 KiB
OpenSCAD
// Cyclone PCB Factory: a 3D printable CNC machine for PCB manufacture
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// Created by Carlosgs (http://carlosgs.es)
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// License: Attribution - Share Alike - Creative Commons (http://creativecommons.org/licenses/by-sa/3.0/)
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// History:
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// - (05/25/2013) Added @yopero's four screw suggestion for the motor stand
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// - (05/28/2013) Added @yopero's four screw suggestion for the idle stand
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use <../libs/obiscad/bcube.scad>
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use <../libs/build_plate.scad>
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motor_width = 43;
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motor_length = 49; // not used
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motor_screw_distance = 31.3;
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motor_center_diameter = 23;
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motor_screw_diameter = 3.7;
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motor_screw_head_diameter = 8;
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motor_adjust_margin = 3;
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bearing_diameter = 22.4;
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M8_rod_diameter = 8.2;
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axis_distance = 32;
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wall_thickness = 8;
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wall_height = 45;
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wall_width = 70;
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idler_width = 25;
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// For the supports with screws
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bottom_thickness = 5;
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base_width = 20;
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base_length = 20+wall_thickness;
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base_screw_diameter = 5;
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wall_extraWidth_left = base_width+5;
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wall_extraWidth_right = 5;
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totalWallWidth = wall_width+wall_extraWidth_left+wall_extraWidth_right;
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module motorHolesY() {
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// Hole for the motor shaft
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hull() {
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translate([0,motor_adjust_margin/2,0])
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cylinder(r=motor_center_diameter/2,h=10*wall_thickness,center=true,$fn=40);
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translate([0,-motor_adjust_margin/2,0])
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cylinder(r=motor_center_diameter/2,h=10*wall_thickness,center=true,$fn=40);
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}
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// Hole for the screwdriver
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translate([-wall_height/2,0,wall_thickness/2]) rotate([0,90,0]) bcube([2*(wall_thickness-5),5,wall_height],cr=1);
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// Screws for holding the motor
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for(i=[-1,1]) for(j=[-1,1])
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translate([i*motor_screw_distance/2,j*motor_screw_distance/2,2.5-wall_thickness/2]) {
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hull() {
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translate([0,motor_adjust_margin/2,0])
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cylinder(r=motor_screw_diameter/2,h=10*wall_thickness,center=true,$fn=40);
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translate([0,-motor_adjust_margin/2,0])
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cylinder(r=motor_screw_diameter/2,h=10*wall_thickness,center=true,$fn=40);
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}
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hull() {
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translate([0,motor_adjust_margin/2,0])
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cylinder(r=motor_screw_head_diameter/2,h=10*wall_thickness,center=false,$fn=40);
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translate([0,-motor_adjust_margin/2,0])
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cylinder(r=motor_screw_head_diameter/2,h=10*wall_thickness,center=false,$fn=40);
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}
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}
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}
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module motor_stand_no_base(with_motor=true) {
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difference() {
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translate([wall_height/2,totalWallWidth/2-wall_extraWidth_left,wall_thickness/2])
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bcube([wall_height,totalWallWidth,wall_thickness],cr=4,cres=10);
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// Position relative to motor shaft
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translate([motor_width/2,motor_width/2,wall_thickness/2]) {
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if(with_motor)
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motorHolesY();
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// Bearing holes
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rotate([0,0,15]) translate([0,axis_distance,2.5-wall_thickness/2]) {
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cylinder(r=(M8_rod_diameter*2)/2,h=10*wall_thickness,center=true,$fn=40);
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cylinder(r=bearing_diameter/2,h=10*wall_thickness,center=false,$fn=60);
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}
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} // End of translate relative to motor shaft
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} // End of difference
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}
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module holder(h=35,noScrews=false,base_width_inc=0) {
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difference() {
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union() {
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translate([wall_height-bottom_thickness,0]) {
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if(!noScrews) cube([bottom_thickness,base_width+base_width_inc,base_length]);
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hull() {
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cube([bottom_thickness,5,base_length]);
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translate([-h,0,0])
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cube([0.001,5,0.001]);
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}
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}
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}
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// --- screws for the base ---
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if(!noScrews) translate([wall_height,base_width/2+2.5,base_length/1.5])
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rotate([0,90,0]) {
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translate([-5,0,0])
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cylinder(r=base_screw_diameter/2,h=100,center=true,$fn=7);
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translate([5,0,0])
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cylinder(r=base_screw_diameter/2,h=100,center=true,$fn=7);
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}
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} // End of difference
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}
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module motor_stand(with_motor=true) {
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union() {
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motor_stand_no_base(with_motor);
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translate([0,wall_width]) holder(noScrews=true);
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translate([0,52.4-5/2]) holder(h=12,base_width_inc=1);
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translate([0,-wall_extraWidth_left+base_width]) scale([1,-1,1]) holder();
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}
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}
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module idle_stand() {
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union() {
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intersection() { // Remove the motor part
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motor_stand(with_motor=false);
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translate([wall_height/2,wall_width/2+52.4-(wall_width+wall_extraWidth_right-52.4),wall_thickness/2])
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bcube([wall_height,wall_width,100],cr=4,cres=10);
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}
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translate([0,wall_width+5-2*(wall_width+wall_extraWidth_right-52.4)]) holder(noScrews=true);
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translate([0,52.4+5/2]) scale([1,-1,1]) holder(h=15,base_width_inc=1);
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}
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}
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//for display only, doesn't contribute to final object
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build_plate(3,200,200);
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//motor_stand();
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idle_stand();
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