// 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/obiscad/bevel.scad> use <../libs/build_plate.scad> use <../libs/teardrop.scad> include <./lm8uu_holder.scad> cyl_res = 40; layer_height = 0.4; X_smooth_rods_sep = 50; X_smooth_rods_sep_projected = sqrt((X_smooth_rods_sep*X_smooth_rods_sep)/2); // Be careful with this measure, it is not properly named since it is used with the following offset: smooth_rod_margin = 1; X_rod_sep_real = X_smooth_rods_sep_projected+smooth_rod_margin; X_rod_sep_real_diag = sqrt(2*(X_rod_sep_real*X_rod_sep_real)); screw_diam = 4; M8_rod_diam = 8.2; M8_rod_hole_diam = M8_rod_diam+0.2; M8_nut_diameter = 15.3; // Adjust these values to match the thickness of the nuts you will use M8_nut_height_Z = 4; M8_nut_height_X = 1+6.5; X_axis_nut_support_thickness = 10; X_nut_screw_diam = 2.5; lbearing_length = 24; Z_smooth_rods_sep = 55; Z_smooth_rods_len = 140; Z_threaded_rod_len = 120; lbearing_holder_length = Z_smooth_rods_sep+M8_rod_diam+5; module rod(len=100) { color([0.8,0.8,0.8]) rotate([90,0,0]) cylinder(r=8/2,h=len,center=true,$fn=30); } module rodHole(len=100,radius=M8_rod_hole_diam/2, truncateMM=1) { color([0.8,0.8,0.8]) rotate([90,-90,0]) translate([0,0,-len/2]) teardrop(radius, len, truncateMM); } module X_nut_holder() { difference() { translate([0,0,11.5]) cube([M8_nut_diameter+2,10,25],center=true); rotate([0,45,0]) translate([0,0,-16]) cube([20,20,20],center=true); rotate([-90,0,0]) hull() { translate([0,-1,1.5]) rotate([0,0,90]) cylinder(r=M8_nut_diameter/2,h=M8_nut_height_X,$fn=6); translate([0,10,1.5]) rotate([0,0,90]) cylinder(r=M8_nut_diameter/2,h=M8_nut_height_X,$fn=6); } rotate([90,0,0]) rotate([0,0,90]) cylinder(r=M8_rod_diam/2+2,h=40,center=true,$fn=6); translate([-4,0,10]) rotate([90,0,0]) cylinder(r=X_nut_screw_diam/2,h=40,center=true,$fn=20); } } module X_nut_holder_cover() { X_nut_screw_diam = X_nut_screw_diam*1.2; scale([1,1,-1]) rotate([-90,0,0]) difference() { translate([0,0,7]) cube([M8_nut_diameter+2,3,17],center=true); rotate([0,45,0]) translate([0,0,-16]) cube([20,20,20],center=true); rotate([0,45,0]) translate([0,0,19]) cube([60,20,20],center=true); rotate([-90,0,0]) hull() { translate([0,-1,0.5]) rotate([0,0,90]) cylinder(r=M8_nut_diameter/2,h=M8_nut_height_X,$fn=6); translate([0,10,0.5]) rotate([0,0,90]) cylinder(r=M8_nut_diameter/2,h=M8_nut_height_X,$fn=6); } rotate([90,0,0]) rotate([0,0,90]) cylinder(r=M8_rod_diam/2+2,h=40,center=true,$fn=6); translate([-4,0,10]) rotate([90,0,0]) cylinder(r=X_nut_screw_diam/2,h=40,center=true,$fn=20); } } module X_carriage(show_printbed = 0, show_support = 0) { if(show_printbed) { //for display only, doesn't contribute to final object translate([0,0,-lbearing_holder_width/2]) build_plate(3,110,140); } difference() { union() { // Origin is set on the base of the Z threaded rod // ---------- Support for the X nut ------------- translate([-X_rod_sep_real/2,-lbearing_holder_length/2+X_axis_nut_support_thickness/2,0]) { rotate([0,45,0]) X_nut_holder(); } // Now, the origin is set on the top smooth rod, and we make a 45deg turn translate([-X_rod_sep_real/2,0,X_rod_sep_real]) rotate([0,45,0]) { // --------- Linear bearing supports ------------ lm8uu_bearing_holder_XZ(lbearing_holder_length); translate([X_rod_sep_real_diag,0,0]) lm8uu_bearing_holder_XZ(lbearing_holder_length); difference() { union() { // Join both linear bearing holders translate([X_rod_sep_real_diag/2,0,lbearing_holder_height/4+2]) cube([X_rod_sep_real_diag+8,lbearing_holder_length,lbearing_holder_height/2],center=true); rotate([0,-45,0]) // Draw a cube for the Z nut holder translate([M8_nut_diameter,0,0]) cube([M8_nut_diameter*1.5,lbearing_holder_length,lbearing_holder_height/2],center=true); } // Leave clear the inside of the bearing holders rotate([90,0,0]) { cylinder(r=lbearing_holder_extDiam-1, h=lbearing_holder_length+0.1, center=true, $fn=40); translate([X_rod_sep_real_diag,0,0]) cylinder(r=lbearing_holder_extDiam-1, h=lbearing_holder_length+0.1, center=true, $fn=40); } } } // ------- Z smooth rods holder ------- translate([0,Z_smooth_rods_sep/2,30/2]) cube([M8_rod_diam+9,M8_rod_diam+5,50],center=true); translate([0,-Z_smooth_rods_sep/2,30/2]) cube([M8_rod_diam+9,M8_rod_diam+5,50],center=true); if(show_support) translate([0,0,-10+2/2]) cube([M8_rod_diam+9,lbearing_holder_length,2],center=true); } // End of union // -------- Z axis rod holes -------- translate([0,0,40-M8_nut_height_Z]) cylinder(r=M8_nut_diameter/2,h=100,$fn=6);// Nut holder (Z) rotate([90,0,0]) { translate([0,70/2-5,0]) // --- Hole for the threaded rod --- rodHole(len=50,radius=M8_rod_diam/2+2, truncateMM=2.5); translate([0,Z_smooth_rods_len/2-5,Z_smooth_rods_sep/2]) rodHole(len=Z_smooth_rods_len); translate([0,Z_smooth_rods_len/2-5,-Z_smooth_rods_sep/2]) rodHole(len=Z_smooth_rods_len); } } // End of difference } module X_carriage_assembled(show_printbed = 0, show_Xrods = 0, show_Zrods = 0) { X_carriage(show_printbed); if(show_Xrods){ // ---- Rods (for reference) ---- translate([-X_rod_sep_real/2,0,0]) { color([0.5,0.5,0.5]) rod(len=100); } translate([-X_rod_sep_real/2,0,X_rod_sep_real]) { rod(len=100); } translate([X_rod_sep_real/2,0,0]) { rod(len=100); } } if(show_Zrods) translate([0,0,0]) rotate([90,0,0]) { translate([0,Z_threaded_rod_len/2-10,0]) color([0.5,0.5,0.5]) rod(len=Z_threaded_rod_len); translate([0,Z_smooth_rods_len/2-5,Z_smooth_rods_sep/2]) rod(len=Z_smooth_rods_len); translate([0,Z_smooth_rods_len/2-5,-Z_smooth_rods_sep/2]) rod(len=Z_smooth_rods_len); } } module X_carriage_print_plate() { //for display only, doesn't contribute to final object build_plate(3,110,140); translate([0,0,lbearing_holder_length/2]) rotate([90,0,0]) X_carriage(show_printbed = 0, show_support = 1); } X_carriage_assembled(show_printbed = 1,show_Xrods = 1,show_Zrods = 1); //X_carriage_print_plate(); //translate([0,20,0]) X_nut_holder_cover();