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x-end.scad
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x-end.scad
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// PRUSA Mendel
// X-end prototype for
// GNU GPL v2
// Josef Průša
// prusadjs.cz
// http://www.reprap.org/wiki/Prusa_Mendel
// http://github.com/prusajr/PrusaMendel
include <configuration.scad>
corection = 1.17;
use <bushing.scad>
use <teardrop.scad>
axis_diameter_real=4;
axis_diameter_larger=4.5;
add_strength=false;
xend_height=15.8;
xend_length=40;
solid_end_width=3;
slot_width=1;
pad_height=5.2;
pad_width=7;
pad_connector_height=3.3;
bushing_support_width=17;
rod_support_width=10;
pad_groove_depth=0.7;
nut_trap_slop=0.3;
module xend_side(closed_end=true,curved_sides=false,endstop_mount=false)
{
// translate([25,0,0])
// difference()
// {
// endstop_mount();
// endstop_holes();
// }
translate([25,0,0])
render()
difference ()
{
union()
{
if (curved_sides)
{
rotate(90)
teardrop(r=xend_height/2,h=xend_length,top_and_bottom=true);
}
else
{
difference ()
{
translate([0,xend_length/2,0])
cube([xend_height,xend_length,xend_height],center=true);
for (i=[0:1])
translate([0,xend_length/2,0])
rotate(i*180)
{
translate([-12,0,2])
rotate([0,25,0])
cube([10,xend_length+2,20],center=true);
translate([-13,0,0]) rotate([0,-10,0])
cube([10,xend_length+2,20],center=true);
}
}
}
translate([-26,xend_length-bushing_support_width,-xend_height/2])
cube([26,bushing_support_width,xend_height]);
translate([-26,0,-xend_height/2])
cube([26,rod_support_width,xend_height]);
if (endstop_mount)
endstop_mount();
}
render();
difference ()
{
union ()
{
translate([0,-1,0])
rotate(90)
teardropcentering(
axis_diameter_larger,
closed_end?xend_length-solid_end_width+1:xend_length+2);
translate([axis_diameter_larger,0,0])
rotate([0,8,0])
translate([-axis_diameter_larger,solid_end_width,-xend_height/2-1])
cube([axis_diameter_larger,
xend_length-2*solid_end_width,
xend_height/2+1]);
translate([-axis_diameter_larger,0,0])
rotate([0,-8,0])
translate([0,solid_end_width,-xend_height/2-1])
cube([axis_diameter_larger,
xend_length-2*solid_end_width,
xend_height/2+1]);
if (closed_end)
{
translate([0,xend_length-solid_end_width+1.5,0])
rotate([90,0,0])
cylinder(r=m3_nut_diameter/2, h=3,$fn=6);
translate([0,xend_length+1,0])
rotate([90,0,0])
cylinder(r=m3_diameter/2-0.2, h=solid_end_width+2,$fn=6);
}
}
translate([-axis_diameter_larger-1,solid_end_width+slot_width,-xend_height/2])
cube([axis_diameter_larger,
xend_length-2*solid_end_width-2*slot_width,
pad_connector_height]);
difference()
{
translate([-pad_width/2,solid_end_width+slot_width,-xend_height/2])
cube([pad_width,
xend_length-2*solid_end_width-2*slot_width,
pad_height]);
translate([0,solid_end_width+slot_width-1,-xend_height/2+pad_height+m8_diameter/2-pad_groove_depth])
rotate([-90,0,0])
rotate(180/20)
cylinder(r=m8_diameter/2,h=xend_length-2*solid_end_width-2*slot_width+2,$fn=20);
translate([axis_diameter_larger,0,0])
rotate([0,8,0])
translate([-slot_width,solid_end_width,-xend_height/2-1])
cube([slot_width,xend_length-2*solid_end_width,xend_height/2+1]);
}
}
if (endstop_mount)
endstop_holes();
if (add_strength)
{
for (i=[0:5])
translate([-axis_diameter_larger+2,5+2.5+5*i,-axis_diameter_larger])
cylinder(h=7,r=0.4,$fn=6,center=true);
for (i=[0:6])
translate([-axis_diameter_larger-2,5+5*i,-axis_diameter_larger])
cylinder(h=7,r=0.4,$fn=6,center=true);
}
if (!closed_end)
{
translate([0,xend_length-1.5-solid_end_width,0])
cylinder(r=3/2, h=xend_height+2,$fn=10,center=true);
}
}
}
module xend(endstop_mount=false,closed_end=true,curved_sides=false,override_height=-1,luu_version=false)
{
// translate([0,9.5,0])bushing(true,13);
// translate([0,4.8,0.5])cube(size = [8,2,1],center=true);
// translate([0,4.8,12.5])cube(size = [8,2,1],center=true);
// translate([0,9.5,48])bushing(true,13);
// translate([0,4.8,48+0.5])cube(size = [8,2,1],center=true);
// translate([0,4.8,48+12.5])cube(size = [8,2,1],center=true);
// translate([0,9.5,32])
// {
// difference()
// {
// bushing(true,16);
// translate([0,3,2])
// rotate([45,0,0])
// cube([16,30,16],center=true);
// }
// }
z_linear_bearings(luu_version=luu_version,override_height=override_height);
difference()
{
union ()
{
translate(v = [0,-25,xend_height/2])
{
xend_side(closed_end=closed_end,curved_sides=curved_sides);
mirror([1,0,0])
xend_side(closed_end=closed_end,curved_sides=curved_sides,
endstop_mount=endstop_mount);
}
// Slider.
// translate([0,6.5,30])
// cube([15.5+2*thin_wall,17,60],center=true);
//Nut Trap
translate([0,-20,0])
cylinder(h=40,r=m8_nut_diameter/2+nut_trap_slop+thin_wall*corection,$fn=6);
}
// Slider cutout.
translate([0,10,32.5])
cube([22.5,22.5,70],center=true);
//Rod hole.
difference()
{
translate([0,-20,39.5])
cylinder(h=90,r=m8_nut_diameter/2+nut_trap_slop,$fn=6,center=true);
translate([0,-20,8.5])
cylinder(h=4,r=m8_nut_diameter/2+nut_trap_slop+thin_wall,$fn=6,center=true);
}
translate([0,-20,52])
cylinder(h=90,r=m8_diameter/2+0.5,$fn=9,center=true);
}
}
endstop_thickness=3;
endstop_w=14;
endstop_l=17;
endstop_h=18;
module endstop_mount()
{
// Endstop mount
translate([-endstop_w+xend_height/2,0,0])
cube([endstop_w,endstop_l,endstop_h]);
}
module endstop_holes()
{
translate([-endstop_w+xend_height/2,0,0])
translate([endstop_thickness,-1,1.2*m8_diameter/2+0.4])
cube([endstop_w-endstop_thickness+1,endstop_l-endstop_thickness+1,endstop_h]);
for(i=[0:1])
{
translate([0,-2.8,2.8])
translate((i==0)?
[0,0,0]:
[0,-10.3,22.2])
translate([-endstop_w+xend_height/2-1,endstop_l-endstop_thickness,1.2*m8_diameter/2+0.4])
rotate([0,90,0])
{
rotate(180/8)
cylinder(r=m3_diameter/2,h=endstop_thickness+2,$fn=8);
rotate(180/6)
cylinder(r=m3_nut_diameter/2,h=3,$fn=6);
}
}
}
module xendcorners(dia1, dia2, dia3, dia4, height=0)
{
translate([0,35,24.5])
union()
{
//round corners
translate([33.1,-60.1,-25]) rotate([0,0,90]) roundcorner(dia1);
translate([33.1,-19.9,-25]) rotate([0,0,-180]) roundcorner(dia2);
translate([-33.1,-60.1,-25]) rotate([0,0,0]) roundcorner(dia3);
translate([-33.1,-19.9,-25]) rotate([0,0,-90]) roundcorner(dia4);
}
}
//xendcorners(5,5,5,5,0);
xend(endstop_mount=true,closed_end=true,curved_sides=true,override_height=65,luu_version=true);