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Create Y_rod_idler_4_screws.scad 

Y rod idlers with 4 screws instead of the original 2.
pull/3/head
yOPERO 2013-05-27 16:41:08 +02:00
parent 8f58ade8c9
commit 28e74196dc
1 changed files with 125 additions and 0 deletions
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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/obiscad/bevel.scad>
use <../libs/build_plate.scad>
module Y_rod_idler(show_printbed = 0) {
motor_stand_thickness = 5;
bearing_diameter = 22.4;
M8_rod_diam = 8.2;
smooth_rod_margin = 1;
smooth_rod_screw_sep = 8;
smooth_rod_screw_diam = 3;
smooth_rod_screw_len = 7;
frame_thickness = 4;
bottom_thickness = 4;
base_screw_diameter = 5;
Y_rod_height = 40;
Y_rod_dist_from_wall = 15;
Y_rod_support_lenght = Y_rod_dist_from_wall+smooth_rod_screw_sep+smooth_rod_screw_diam;
frame_width = 30;
frame_height = Y_rod_height-smooth_rod_margin;
wall_thickness = 5;
if(show_printbed) {
//for display only, doesn't contribute to final object
translate([frame_width/2,frame_height/2,0]) build_plate(3,110,140);
}
union() {
// --------- Main frame --------- //
difference() {
translate([frame_width/2,frame_height/2,frame_thickness/2])
cube([frame_width,frame_height,frame_thickness],center=true);
rotate([0,0,35]) cube([33,frame_height*10,frame_thickness*10],center=true);
} // End of difference() command
// --------- Step with screws in the base --------- //
difference() {
translate([0,frame_height-bottom_thickness,frame_thickness/2])
cube([frame_width,bottom_thickness,Y_rod_support_lenght/2],center=false);
// --------- Screws in the base --------- //
rotate([90,0,0]) translate([frame_width/3,Y_rod_support_lenght/2.5,-frame_height]) {
translate([-5,0,0])
cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
translate([5,0,0])
cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
}
} // End of difference() command
//Extra 2 screws @yopero
difference() {
translate([0,frame_height-bottom_thickness,frame_thickness/2+13])
cube([frame_width,bottom_thickness,Y_rod_support_lenght/2+2],center=false);
// --------- Screws in the base --------- //
rotate([90,0,0]) translate([frame_width/3,Y_rod_support_lenght/2.5,-frame_height]) {
translate([-5,13,0])
cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
translate([5,13,0])
cylinder(r=base_screw_diameter/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
}
} // End of difference() command
// --------- Bevel base supports --------- //
translate([frame_width-frame_thickness,frame_height,frame_thickness-0.5])
rotate([90,0,-90])
bconcave_corner(cr=Y_rod_support_lenght-0.5, cres=0, l=frame_thickness*2, th=0.5, ext_corner=true);
// --------- Bevel Y rod support --------- //
translate([frame_width-frame_thickness,frame_height,frame_thickness-2])
translate([0,-Y_rod_height+smooth_rod_margin,0]) {
difference() {
rotate([90,0,90]) // Bevel
bconcave_corner(cr=Y_rod_support_lenght-smooth_rod_screw_len, cres=0, l=frame_thickness*2, th=smooth_rod_screw_len, ext_corner=true);
translate([0,-smooth_rod_margin,Y_rod_dist_from_wall]) rotate([0,90,0]) {
cylinder(r=M8_rod_diam/2,h=10*frame_thickness,center=true,$fn=40);
// Screws
rotate([90,0,0]) {
translate([-smooth_rod_screw_sep,0,-1])
cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
translate([smooth_rod_screw_sep,0,-1])
cylinder(r=smooth_rod_screw_diam/2,h=2*smooth_rod_screw_len,center=true,$fn=6);
}
}
}
}
} // End of union() command
}
module base_screws(){
}
//Y_rod_idler(show_printbed = 1);
scale([-1,1,1]) Y_rod_idler(show_printbed = 1);
translate([0,-5,0])
rotate([180,0,0])
mirror([0,0,1]){
scale([-1,1,1]) Y_rod_idler(show_printbed = 0);
}