cyclone-pcb-factory/Hardware/yOPERO/XZ_axis/Z_carriage.scad

252 lines
7.9 KiB
OpenSCAD

// 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/)
/*
* August 2013 changes to design top-part mounting screw at same side as bottom-part.
* also started introduced 2nd spindle diameter for a-symmetrical spindles. this is not working yet.
* by Harry Binnema.
*/
use <../libs/obiscad/bcube.scad>
use <../libs/build_plate.scad>
use <../libs/Write/Write.scad>
spindle_motor_diam_top = 26*2;
spindle_motor_diam = 26*2;
spindle_holder_thickness = 8;
spindle_holder_distance = 46;
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_adjust_margin = 3;
motor_screw_diameter = 3.7;
motor_screw_head_diameter = 8;
bearing_diameter = 22.4;
M8_rod_diameter = 8.2;
axis_distance = 21;
wall_thickness = 9;
wall_height = motor_width;
wall_width = 54;
idler_width = 25;
lbearing_holder_length = 23*2;
Z_threaded_pos = motor_width/2+axis_distance;
Z_smooth_rods_sep = 55;
textHscale = 0.8;
textThickness = 1;
LM8UU_dia = 15.4;
module dummySpindle() {
translate([0,0,-length]) {
translate([0,0,85]) color([0.95,0.95,0.95]) cylinder(r=26,h=30,$fn=60);
translate([0,0,80]) color([0.95,0.95,0.95]) cylinder(r=10/2,h=5,$fn=60);
translate([0,0,-10]) color([0.6,0.6,0.6]) cylinder(r=26,h=90,$fn=60);
translate([0,0,-40]) color([0.9,0.9,0.9]) cylinder(r=15/2,h=40,$fn=60);
translate([0,0,-50]) color([0.4,0.4,0.4]) cylinder(r=20/2,h=10,$fn=60);
translate([0,0,-50-20]) color([0.9,0.9,0.9]) cylinder(r1=1/2,r2=3/2,h=20,$fn=60);
}
}
// Derived from Spindle mount for ShapeOko by Misan (http://www.thingiverse.com/thing:26740)
module spindle_holder_holes(length,spindiam, basediam,top_part) {
$fn=6;
translate([20,8,-0.05]) cylinder(r=basediam/2,h=length+2,$fn=60);
translate([-20,8,-0.05]) cylinder(r=basediam/2,h=length+2,$fn=60);
if (top_part){
translate([0,38,0]) rotate([0,0,0]) {
translate([0,0,-0.05]) cylinder(r=spindiam/2,h=length+2,$fn=60);
translate([0,-3,-0.01]) cube([90,3,length+2]);
translate ([spindiam/2+15,15,length/2]) rotate([90,0,0]) cylinder(r=2,h=30);
translate ([spindiam/2+15,-10.5,length/2]) rotate([90,0,0]) cylinder(r=3.5,h=4,$fn=6);
}
}
else
{
translate([0,38,0]) rotate([0,0,180]) {
translate([0,0,-0.05]) cylinder(r=spindiam/2,h=length+2,$fn=60);
translate([0,0,-0.01]) cube([90,3,length+2]);
translate ([spindiam/2+15,20,length/2]) rotate([90,0,0]) cylinder(r=2,h=30);
translate ([spindiam/2+15,15,length/2]) rotate([90,0,0]) cylinder(r=3.5,h=4,$fn=6);
}
}
}
module motorHolesZ() {
// Hole for the motor shaft
hull() {
translate([0,motor_adjust_margin/2,0])
cylinder(r=motor_center_diameter/2,h=10*wall_thickness,center=true,$fn=40);
translate([0,-motor_adjust_margin/2,0])
cylinder(r=motor_center_diameter/2,h=10*wall_thickness,center=true,$fn=40);
}
// Hole for the screwdriver
translate([0,-wall_width/2,wall_thickness/2]) rotate([0,90,90]) bcube([2*(wall_thickness-5),5,wall_height],cr=1);
// Screws for holding the motor
for(i=[-1,1]) for(j=[-1,1])
translate([i*motor_screw_distance/2,j*motor_screw_distance/2,2.5-wall_thickness/2]) {
hull() {
translate([0,motor_adjust_margin/2,0])
cylinder(r=motor_screw_diameter/2,h=10*wall_thickness,center=true,$fn=40);
translate([0,-motor_adjust_margin/2,0])
cylinder(r=motor_screw_diameter/2,h=10*wall_thickness,center=true,$fn=40);
}
hull() {
translate([0,motor_adjust_margin/2,0])
cylinder(r=motor_screw_head_diameter/2,h=10*wall_thickness,center=false,$fn=40);
translate([0,-motor_adjust_margin/2,0])
cylinder(r=motor_screw_head_diameter/2,h=10*wall_thickness,center=false,$fn=40);
}
}
}
module motor_stand_holes_Z() {
//difference() {
// translate([wall_height/2,wall_width/2,wall_thickness/2])
// bcube([wall_height,wall_width,wall_thickness],cr=4,cres=10);
// Position relative to motor shaft
translate([motor_width/2,motor_width/2,wall_thickness/2]) {
motorHolesZ();
// Bearing holes
rotate([0,0,0]) translate([0,axis_distance,0]) {
hull() {
cylinder(r=(M8_rod_diameter*2)/2,h=10*wall_thickness,center=true,$fn=40);
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 linearBearingHolderZ(h=10) {
translate([0,0,1.5]) cylinder(r=LM8UU_dia/2,h=h,$fn=50);
cylinder(r=LM8UU_dia/2.5,h=10*h,center=true,$fn=50);
}
module Z_solid_body(top_part=true) {
hull() {
if(top_part)
translate([wall_height/2,wall_width/2,wall_thickness/2])
bcube([wall_height,wall_width,wall_thickness],cr=4,cres=10);
else
translate([wall_height/2,wall_width,wall_thickness/2])
bcube([wall_height,wall_width/2,wall_thickness],cr=4,cres=10);
translate([wall_height/2,wall_width-4,0])
translate([0,38,0])
cylinder(r=spindle_motor_diam/2+spindle_holder_thickness,h=wall_thickness,$fn=60);
}
// For the linear bearing holders
hull() {
translate([wall_height/2-Z_smooth_rods_sep/2,Z_threaded_pos,0])
cylinder(r=3+LM8UU_dia/2,h=wall_thickness,$fn=50);
translate([wall_height/2+Z_smooth_rods_sep/2,Z_threaded_pos,0])
cylinder(r=3+LM8UU_dia/2,h=wall_thickness,$fn=50);
}
// For the claw of the spindle holder
if(top_part){
translate([wall_height/2,wall_width-4,0])
translate([0,38,0]) {
rotate([0,0,0]) {
translate([spindle_motor_diam/2,-12.5,0]) cube([25,20,wall_thickness]);
// Write text in the front
color([0.5,0.5,0.5])
rotate([0,0,180]) scale([-1,1,-textHscale])
writecylinder("CYCLONE",[0,0,-wall_thickness/(2*textHscale)],spindle_motor_diam/2+spindle_holder_thickness,0,font="orbitron.dxf",space=1.1,h=wall_thickness,t=textThickness,center=true,ccw=true);
}
}
}
else
translate([wall_height/2,wall_width-4,0])
translate([0,38,0]) {
rotate([0,0,180]) {
translate([spindle_motor_diam/2,-7,0]) cube([25,20,wall_thickness]);
color([0.2,0.2,0.5])
scale([1,1,textHscale])
writecylinder("PCB Factory",[0,0,wall_thickness/(2*textHscale)+1],spindle_motor_diam/2+spindle_holder_thickness,0,font="orbitron.dxf",space=1.1,h=wall_thickness-2,t=textThickness,center=true,ccw=true);
}
}
}
//for display only, doesn't contribute to final object
//build_plate(3,200,200);
module Z_carriage(showSpindle=false,top_part=true) {
difference() {
rotate([0,0,-90]) translate([-wall_height/2,-Z_threaded_pos,0]) {
difference () {
Z_solid_body(top_part);
if(top_part) motor_stand_holes_Z();
translate([wall_height/2,wall_width-4,0])
spindle_holder_holes(wall_thickness,spindle_motor_diam,base_screw_diameter,top_part);
translate([wall_height/2-Z_smooth_rods_sep/2,Z_threaded_pos,0])
linearBearingHolderZ(wall_thickness);
translate([wall_height/2+Z_smooth_rods_sep/2,Z_threaded_pos,0])
linearBearingHolderZ(wall_thickness);
}
}
// Hole for the threaded rod
if(!top_part) {
hull() {
cylinder(r=2+M8_rod_diameter/2,h=wall_thickness*10,center=true,$fn=30);
translate([-15,0,0])
cylinder(r=2+M8_rod_diameter/2,h=wall_thickness*10,center=true,$fn=30);
}
}
// Truncation in the base for avoiding collision with the X axis
if(!top_part) translate([-15,0,0]) rotate([0,45,0]) cube([20,100,10],center=true);
}
if(showSpindle) rotate([0,0,-90]) translate([0,wall_width-4-Z_threaded_pos,0])
translate([0,38,-20+8]) dummySpindle();
}
module Z_carriage_assembled() {
Z_carriage(showSpindle=true,top_part=false);
translate([0,0,3+spindle_holder_distance]) rotate([180,0,0]) Z_carriage(showSpindle=false,top_part=true);
}
//Z_carriage(top_part=true);
//Z_carriage(top_part=false);
Z_carriage_assembled();