cyclone-pcb-factory/Hardware/Release/Y_axis/Y_nut_holder.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>
use <../libs/Write/Write.scad>
// Adjust these values to match the thickness of the nuts you will use
M8_nut_height_margin = 0.1;
M8_nut_height = M8_nut_height_margin+6.2;
Y_rod_height = 40;
Y_rod_dist_from_workbed = 12.5;
Y_threaded_rod_height = Y_rod_height-8.218; // Obtained "by sight" using the template 3D assembled model
Y_threaded_rod_dist_from_workbed = (Y_rod_height-Y_threaded_rod_height)+Y_rod_dist_from_workbed;
nut_slot_thickness = 1;
nut_slot_length = 3;
bottom_thickness = 4;
base_width = 16;
base_length = 30;
base_screw_diameter = 5;
reinforcement_length = 7.5;
M8_rod_diameter = 8.2+1;
M8_nut_diameter = 15.3;
wall_thickness = 10;
wall_height = Y_threaded_rod_dist_from_workbed+11.5;
wall_width = base_width;
module text(dist=5) {
lineWidth = 0.5;
thickness = 2*0.75;
textSize = 6;
rotate([0,180,-90])
write(str(dist," mm"),t=thickness,h=textSize,center=true);
}
module nut_holder_no_hole() {
translate([0,wall_height])
rotate([0,0,-90])
union() {
translate([wall_height/2,wall_width/2,wall_thickness/2])
bcube([wall_height,wall_width,wall_thickness],cr=2,cres=10);
difference() {
union() {
translate([wall_height-bottom_thickness,wall_width-base_width]) {
cube([bottom_thickness,base_width,base_length]);
hull() {
cube([bottom_thickness,5,10+reinforcement_length]);
translate([-wall_height+bottom_thickness+5,0,wall_thickness])
cube([0.001,5,0.001]);
}
}
}
// --- screws for the base ---
translate([wall_height,wall_width-5.5,20])
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 nut_holder() {
union() {
difference() {
nut_holder_no_hole();
translate([base_width-3.7,Y_threaded_rod_dist_from_workbed,0]) {
// Hole for the M8 rod
hull() {
cylinder(r=M8_rod_diameter/2,h=100,$fn=25,center=true);
translate([10,0,0])
cylinder(r=M8_rod_diameter/2,h=100,$fn=25,center=true);
}
// Slot for the M8 nut
translate([0,0,wall_thickness/2]) {
cylinder(r=M8_nut_diameter/2,h=M8_nut_height,$fn=6,center=true);
translate([0,0,M8_nut_height/2-nut_slot_thickness/2])
cylinder(r=nut_slot_length+(M8_nut_diameter/2),h=nut_slot_thickness,$fn=6,center=true);
translate([0,0,-(M8_nut_height/2-nut_slot_thickness/2)])
cylinder(r=nut_slot_length+(M8_nut_diameter/2),h=nut_slot_thickness,$fn=6,center=true);
}
//translate([-8,-5,0])
// text(M8_nut_height-M8_nut_height_margin);
}
} // End of difference
translate([base_width-3.7,Y_threaded_rod_dist_from_workbed,0])
translate([-8,-5,0])
text(M8_nut_height-M8_nut_height_margin);
} // End of union
}
module nut_holder_positioned() {
rotate([90,0,0])
translate([-(base_width-3.7),0,-wall_thickness/2])
nut_holder();
}
//for display only, doesn't contribute to final object
build_plate(3,200,200);
rotate([0,-90,0])
nut_holder();