396 lines
15 KiB
OpenSCAD
396 lines
15 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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include <MCAD/stepper.scad>
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include <MCAD/bearing.scad>
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include <MCAD/metric_fastners.scad>
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include <MCAD/nuts_and_bolts.scad>
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use <../Gears/rod_gear.scad>
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use <../Gears/motor_gear.scad>
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use <../libs/obiscad/bcube.scad>
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use <../libs/obiscad/bevel.scad>
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use <../libs/build_plate.scad>
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use <../smooth_rod_fix/smooth_rod_fix.scad>
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use <../libs/End_Stop_Holder.scad>
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use <../libs/micro_switch.scad>
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layer_thickness = 0.4;
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motor_width = 43+1;
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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 = 4;
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motor_screw_head_diameter = 8;
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motor_stand_thickness = 5;
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bearing_diameter = 22.4;
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M8_rod_diam = 8.2;
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X_smooth_rods_sep = 50;
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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:
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smooth_rod_margin = 1;
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smooth_rod_screw_sep = 8;
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smooth_rod_screw_diam = 3;
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smooth_rod_screw_len = 7;
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X_rods_corner_shaft_size = X_smooth_rods_sep*0.65;
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frame_thickness = 10;
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frame_width = 90;
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frame_height = 135;
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frame_corner_radius = 5;
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X_threaded_rod_posX = X_smooth_rods_sep_projected;
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X_threaded_rod_posY = X_smooth_rods_sep_projected;
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motor_axis_distance = 32;
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motor_axis_angle = 15;
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X_motor_gear_margin = 35;
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frame_hole_height = 80;
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bottom_thickness = 5;
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wall_thickness = 5;
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base_screw_diameter = 5;
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base_screw_distance = 33;
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Y_rod_height = 40;
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Y_rod_dist_from_wall = 15;
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Y_rod_support_lenght = Y_rod_dist_from_wall+smooth_rod_screw_sep+smooth_rod_screw_diam+3;
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motor_adjust_margin = 3;
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Cyclone_Nema17 = [
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[NemaModel, 17],
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[NemaLengthShort, 33*mm],
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[NemaLengthMedium, 39*mm],
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[NemaLengthLong, 48*mm],
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[NemaSideSize, 42.30*mm],
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[NemaDistanceBetweenMountingHoles, 31.0*mm],
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[NemaMountingHoleDiameter, 4*mm],
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[NemaMountingHoleDepth, 5.5*mm], //actual is 4.5mm, motor() module is generating 1mm shorter
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[NemaMountingHoleLip, -1*mm],
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[NemaMountingHoleCutoutRadius, 0*mm],
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[NemaEdgeRoundingRadius, 7*mm],
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[NemaRoundExtrusionDiameter, 22*mm],
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[NemaRoundExtrusionHeight, 1.9*mm],
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[NemaAxleDiameter, 5*mm],
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[NemaFrontAxleLength, 24*mm],
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[NemaBackAxleLength, 15*mm],
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[NemaAxleFlatDepth, 0.5*mm],
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[NemaAxleFlatLengthFront, 15*mm],
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[NemaAxleFlatLengthBack, 14*mm]
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];
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module frame(with_motor = 1, show_printbed = 0, with_extra_parts=false, exploded=false) {
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if(show_printbed) {
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//for display only, doesn't contribute to final object
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translate([frame_width/2,frame_height/2,0]) build_plate(3,110,140);
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}
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union() {
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difference() {
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// --------- Main frame --------- //
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translate([frame_width/2,frame_height/2,frame_thickness/2])
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cube([frame_width,frame_height,frame_thickness],center=true);
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// --------- Smooth Y rods --------- //
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translate([X_smooth_rods_sep_projected,-smooth_rod_margin,0]) {
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cylinder(r=M8_rod_diam/2,h=10*frame_thickness,center=true,$fn=40);
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// Screws
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rotate([90,0,0]) translate([0,frame_thickness/2,0]) {
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translate([-smooth_rod_screw_sep,0,0])
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cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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translate([smooth_rod_screw_sep,0,0])
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cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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}
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}
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translate([-smooth_rod_margin,X_smooth_rods_sep_projected,0]) {
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cylinder(r=M8_rod_diam/2,h=10*frame_thickness,center=true,$fn=40);
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// Screws
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rotate([0,90,0]) translate([-frame_thickness/2,0,0]) {
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translate([0,-smooth_rod_screw_sep,0])
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cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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translate([0,smooth_rod_screw_sep,0])
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cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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}
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}
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// --------- Holes to save plastic --------- //
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// Corner shaft
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rotate([0,0,45])
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cube([X_rods_corner_shaft_size,X_rods_corner_shaft_size,frame_thickness*3],center=true);
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// Hole next to the corner shaft
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rotate([0,0,45]) translate([28,0,0])
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bcube([15,25,frame_thickness*3],cr=2,cres=10);
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// Hole to remove the motor part
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if(with_motor==0)
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translate([frame_width,0,0])
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bcube([frame_width-10,frame_hole_height+bottom_thickness,frame_thickness*3],cr=2,cres=10);
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// --------- Large hole in the frame --------- //
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translate([(frame_width-wall_thickness)/2,frame_height-frame_hole_height/2-bottom_thickness,0])
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bcube([frame_width-wall_thickness-frame_thickness,frame_hole_height,frame_thickness*3],cr=2,cres=10);
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// --------- Screws in the base --------- //
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rotate([90,0,0]) translate([frame_width/2,frame_thickness/2,-frame_height]) {
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translate([-base_screw_distance,0,0])
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cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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translate([base_screw_distance*0.8,0,0])
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cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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translate([base_screw_distance*0.2,0,0])
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cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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}
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// --------- X motor assembly, position relative to X threaded rod --------- //
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translate([X_threaded_rod_posX,X_threaded_rod_posY,0]) {
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// Threaded Y rod hole
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translate([0,0,(motor_stand_thickness/2)+layer_thickness])
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cylinder(r=(M8_rod_diam*2)/2,h=10*frame_thickness,center=false,$fn=40);
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// Threaded X rod bearing hole
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translate([0,0,0])
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cylinder(r=bearing_diameter/2,h=motor_stand_thickness,center=true,$fn=40);
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if(with_motor) {
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// ------- BEGIN MOTOR HOLES --------
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// Center is the motor shaft, and we apply the rotation keeping the motor horizontal
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// Screws for holding the motor
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rotate([0,0,-motor_axis_angle]) translate([motor_axis_distance,0,0]) rotate([0,0,90+motor_axis_angle]) {
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// Hole for the motor shaft
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hull() {
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translate([0,motor_adjust_margin/2,0])
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cylinder(r=motor_center_diameter/2,h=10*wall_thickness,center=true,$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,$fn=40);
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}
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// Screws for holding the motor
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for(i=[-1,1]) for(j=[-1,1])
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translate([i*motor_screw_distance/2,j*motor_screw_distance/2,0]) {
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hull() {
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translate([0,motor_adjust_margin/2,0])
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cylinder(r=motor_screw_diameter/2,h=10*wall_thickness,center=true,$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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}
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// Level the motor area
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hull() {
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translate([0,motor_adjust_margin/2-10,motor_stand_thickness*2])
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bcube([motor_width,motor_width+20,frame_thickness],cr=5,cres=10);
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translate([0,-motor_adjust_margin/2,motor_stand_thickness*2])
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bcube([motor_width,motor_width,frame_thickness],cr=5,cres=10);
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}
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// ------- END MOTOR HOLES --------
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} // End of centering over motor shaft
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} // End of if(with_motor)
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} // End of centering over X threaded rod
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} // End of difference() command
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// --------- Support column for the triangular structure --------- //
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translate([frame_width/4,frame_height-frame_hole_height/2-bottom_thickness,frame_thickness/2])
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rotate([0,0,-23])
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cube([wall_thickness,sqrt((frame_width*frame_width)/4+(frame_hole_height*frame_hole_height)),frame_thickness],center=true);
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// --------- Bevel base supports --------- //
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translate([wall_thickness/2,frame_height,frame_thickness-0.5])
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rotate([90,0,-90])
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bconcave_corner(cr=Y_rod_support_lenght-0.5, cres=0, l=wall_thickness, th=0.5, ext_corner=true);
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translate([frame_width-frame_thickness/2,frame_height,frame_thickness-0.5])
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rotate([90,0,-90])
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bconcave_corner(cr=Y_rod_support_lenght-0.5, cres=0, l=frame_thickness, th=0.5, ext_corner=true);
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// Long bevel
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translate([frame_width/2,frame_height,frame_thickness-0.5])
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rotate([90,0,-90])
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bconcave_corner(cr=wall_thickness-0.5, cres=0, l=frame_width, th=0.5, ext_corner=true);
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// --------- Bevel Y rod support --------- //
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translate([frame_width-frame_thickness/2,frame_height,frame_thickness-2])
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translate([0,-Y_rod_height+smooth_rod_margin,0]) {
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difference() {
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rotate([90,0,90]) // Bevel
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bconcave_corner(cr=Y_rod_support_lenght-smooth_rod_screw_len, cres=0, l=frame_thickness, th=smooth_rod_screw_len, ext_corner=true);
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translate([0,-smooth_rod_margin,Y_rod_dist_from_wall]) rotate([0,90,0]) {
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cylinder(r=M8_rod_diam/2,h=10*frame_thickness,center=true,$fn=40);
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// Screws
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rotate([90,0,0]) {
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translate([-smooth_rod_screw_sep,0,-1])
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cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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translate([smooth_rod_screw_sep,0,-1])
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cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
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}
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}
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}
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}
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if(with_extra_parts)
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frame_extras(with_motor=with_motor, exploded_distance=(exploded?30:0));
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} // End of union() command
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}
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module frame_extras(with_motor=1, exploded_distance=0) {
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if(with_motor) {
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translate([X_threaded_rod_posX,X_threaded_rod_posY,0]) {
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rotate([0,0,-motor_axis_angle]) translate([motor_axis_distance,0,0]) rotate([0,0,90+motor_axis_angle]) {
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translate([0,0,wall_thickness-1]) {
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echo("Non-Plastic Parts, 1, Nema 17 for X axis");
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translate([0,0,exploded_distance]) motor(Cyclone_Nema17, NemaLengthLong);
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// --- Motor gear ---
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translate([0,0,-12-5.5+1-0.5*exploded_distance])
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cyclone_motor_gear(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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echo("Non-Plastic Parts, 4, Bolt M3 x 8 mm to attach motor on frame");
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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/2,0])
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translate([0,0,-0.4*exploded_distance]) {
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rotate([0,0,0]) color(Steel) boltHole(size=3, length=8);
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}
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}
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}
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translate([X_threaded_rod_posX,X_threaded_rod_posY,0]) {
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rotate([0,0,0]) {
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echo("Non-Plastic Parts, 1, Bearing 608 for motor frame");
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translate([0,0,-1.0-7/2-0.2*exploded_distance]) bearing(model=608);
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// --- Rod Gear ---
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translate([0,0,-8-1.0-7/2-1.0*exploded_distance])
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rotate([0,0,6])
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cyclone_rod_gear(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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}
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}
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screw_size = 2.9;
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screw_length = 16;
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echo("Non-Plastic Parts, 3, Self Tapping Screw 2.9 x 16 mm to attach frame on base");
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rotate([90,0,0]) translate([frame_width/2,frame_thickness/2,-frame_height+frame_thickness/2+.2+exploded_distance]) color(Steel) {
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translate([-base_screw_distance,0,0]) rotate([180,0,0])
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csk_bolt(screw_size, screw_length);
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translate([base_screw_distance*0.8,0,0]) rotate([180,0,0])
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csk_bolt(screw_size, screw_length);
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translate([base_screw_distance*0.2,0,0]) rotate([180,0,0])
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csk_bolt(screw_size, screw_length);
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}
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// --- X smooth rod fix ---
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translate([X_smooth_rods_sep_projected,-smooth_rod_margin,0])
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rotate([90,0,0]) translate([0,frame_thickness/2,8.5+0.5*exploded_distance])
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rotate([180,0,0]) smooth_rod_fix(with_extra_parts=true, exploded=(exploded_distance!=0));
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translate([-smooth_rod_margin,X_smooth_rods_sep_projected,0])
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rotate([0,90,0]) translate([-frame_thickness/2,0,-8.5-0.5*exploded_distance])
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rotate([0,0,90]) smooth_rod_fix(with_extra_parts=true, exploded=(exploded_distance!=0));
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// --- Y smooth rod fix ---
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translate([frame_width-frame_thickness/2,frame_height,frame_thickness-2])
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translate([0,-Y_rod_height+smooth_rod_margin,0])
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translate([0,-smooth_rod_margin-8.5-0.5*exploded_distance,Y_rod_dist_from_wall]) rotate([90,90,180])
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smooth_rod_fix(with_extra_parts=true, exploded=(exploded_distance!=0));
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if(with_motor) {
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// this seems to reduce working area of Y axis
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if(false) {
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translate([frame_width-frame_thickness/2,frame_height,frame_thickness-2])
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translate([0,-Y_rod_height+smooth_rod_margin,0])
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translate([0,-smooth_rod_margin,Y_rod_dist_from_wall])
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translate([-frame_thickness/2-0.5*exploded_distance, 15, 8]) rotate([180,0,0]) rotate([0,-90,0])
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end_stop_holder(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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// this seems to reduce working area of X axis
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if(false) {
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translate([X_smooth_rods_sep_projected,-smooth_rod_margin,0])
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translate([15+0.5*exploded_distance, -8, frame_thickness])
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rotate([180,180,-90])
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end_stop_holder(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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// this seems to reduce working area of X axis
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if(false) {
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echo("Non-Plastic Parts, 1, Micro Switch on motor frame for X axis");
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rotate([90, 0, -45])
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translate([X_rods_corner_shaft_size/2-19.8,0,-X_rods_corner_shaft_size/2+0.5*exploded_distance])
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micro_switch(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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}
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if(!with_motor) {
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translate([X_threaded_rod_posX,X_threaded_rod_posY,0]) {
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rotate([0,0,0]) {
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echo("Non-Plastic Parts, 1, Bearing 608 for no motor frame");
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translate([0,0,-1.0-7/2-0.2*exploded_distance]) bearing(model=608);
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echo("Non-Plastic Parts, 1, Nut M8 to attach threaded rod on no motor frame");
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translate([0,0,-6.5-1.0-7/2-0.6*exploded_distance]) rotate([0,0,0]) color(Steel) flat_nut(8);
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}
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}
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//this is not how carlosgs designed
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if(false) {
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echo("Non-Plastic Parts, 1, Micro Switch on no motor frame for X axis");
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rotate([90, 0, -45])
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translate([X_rods_corner_shaft_size/2-19.8,0,-X_rods_corner_shaft_size/2+0.5*exploded_distance])
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micro_switch(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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//Y end_stop_holder
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if(true) {
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translate([frame_width-frame_thickness/2,frame_height,frame_thickness-2])
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translate([0,-Y_rod_height+smooth_rod_margin,0])
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translate([0,-smooth_rod_margin,Y_rod_dist_from_wall])
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translate([-frame_thickness/2-0.5*exploded_distance, 8, -15]) rotate([90,0,0]) rotate([0,-90,0])
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end_stop_holder(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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//this seems to reduce working area of Y axis
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if(false) {
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echo("Non-Plastic Parts, 1, Micro Switch on no motor frame for Y axis");
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translate([frame_width-frame_thickness/2+10.8/2-0.5,frame_height-19.8-2,frame_thickness])
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translate([0,-Y_rod_height+smooth_rod_margin,0])
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translate([0,-smooth_rod_margin-8.5-0.5*exploded_distance,0])
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rotate([0, 0, 90])
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micro_switch(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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//Carlosgs design of X end_stop_holder
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if(true) {
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translate([X_smooth_rods_sep_projected,-smooth_rod_margin,0])
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translate([15+0.5*exploded_distance, -8, frame_thickness])
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rotate([180,180,-90])
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end_stop_holder(with_extra_parts=true, exploded=(exploded_distance!=0));
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}
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}
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}
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// Toggle parameters and mirror to create the other side part
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//frame(with_motor = 1, show_printbed = 1);
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scale([-1,1,1]) frame(with_motor = 0, show_printbed = 1);
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