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pull/6/head
carlosgs 2013-06-01 12:50:59 +02:00
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Hardware/Y_axis/idle_stand.scad
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// Cyclone PCB Factory: a 3D printable CNC machine for PCB manufacture
// Created by Carlosgs (http://carlosgs.es)
// License: Attribution - Share Alike - Creative Commons (http://creativecommons.org/licenses/by-sa/3.0/)
use <../libs/obiscad/bcube.scad>
use <../libs/build_plate.scad>
bottom_thickness = 4;
base_width = 20;
base_length = 25;
base_screw_diameter = 5;
motor_width = 43;
motor_length = 49; // not used
motor_screw_distance = 31.3;
motor_center_diameter = 23;
motor_screw_diameter = 3.7;
motor_screw_head_diameter = 8;
bearing_diameter = 22.4;
M8_rod_diameter = 8.2;
axis_distance = 32;
wall_thickness = 5;
wall_height = 45;
wall_width = 70;
idler_width = 25;
module motor_stand_no_base(with_motor=true) {
difference() {
translate([wall_height/2,wall_width/2,wall_thickness/2])
bcube([wall_height,wall_width,wall_thickness],cr=4,cres=10);
// Position relative to motor shaft
translate([motor_width/2,motor_width/2,wall_thickness/2]) {
if(with_motor) {
// Hole for the motor shaft
translate([0,-wall_width/2,0])
cube([20,wall_width,10*wall_thickness],cr=4,cres=10,center=true);
cylinder(r=motor_center_diameter/2,h=10*wall_thickness,center=true,$fn=40);
// Screws for holding the motor
for(i=[-1,1]) for(j=[-1,1])
translate([i*motor_screw_distance/2,j*motor_screw_distance/2,0]) {
cylinder(r=motor_screw_diameter/2,h=10*wall_thickness,center=true,$fn=40);
cylinder(r=motor_screw_head_diameter/2,h=10*wall_thickness,center=false,$fn=40);
}
} // End if with motor
// Bearing holes
rotate([0,0,15]) translate([0,axis_distance,0]) {
cylinder(r=(M8_rod_diameter*2)/2,h=10*wall_thickness,center=true,$fn=40);
cylinder(r=bearing_diameter/2,h=10*wall_thickness,center=false,$fn=60);
}
} // End of translate relative to motor shaft
} // End of difference
}
module motor_stand(with_motor=true) {
union() {
motor_stand_no_base(with_motor);
difference() {
union() {
translate([wall_height-bottom_thickness,wall_width-base_width]) {
cube([bottom_thickness,base_width,base_length]);
hull() {
cube([bottom_thickness,5,base_length]);
translate([-18,0,0])
cube([0.001,5,0.001]);
}
}
}
// --- screws for the base ---
translate([wall_height,wall_width-5,15])
rotate([0,90,0]) {
translate([-5,0,0])
cylinder(r=base_screw_diameter/2,h=100,center=true,$fn=6);
translate([5,0,0])
cylinder(r=base_screw_diameter/2,h=100,center=true,$fn=6);
}
} // End of difference
}
}
module idle_stand() {
intersection() { // Remove the motor part
motor_stand(with_motor=false);
translate([wall_height/2,wall_width/2+35,wall_thickness/2])
bcube([wall_height,wall_width,100],cr=4,cres=10);
}
}
//for display only, doesn't contribute to final object
build_plate(3,200,200);
//motor_stand();
idle_stand();
translate([0,105,0])
mirror([0,1,0])
difference() {
union() {
translate([wall_height-bottom_thickness,wall_width-base_width]) {
cube([bottom_thickness,base_width,base_length]);
hull() {
cube([bottom_thickness,5,base_length]);
translate([-18,0,0])
cube([0.001,5,0.001]);
}
}
}
// --- screws for the base ---
translate([wall_height,wall_width-5,15])
rotate([0,90,0]) {
translate([-5,0,0])
cylinder(r=base_screw_diameter/2,h=100,center=true,$fn=6);
translate([5,0,0])
cylinder(r=base_screw_diameter/2,h=100,center=true,$fn=6);
}
}