168 lines
5.2 KiB
OpenSCAD
168 lines
5.2 KiB
OpenSCAD
// PRUSA iteration4
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// spool-buffer-printer
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// GNU GPL v3
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// Josef Průša <iam@josefprusa.cz> and contributors
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// http://www.reprap.org/wiki/Prusa_Mendel
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// http://prusamendel.org
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tl=1.8;
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spc=4.7;
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module plate()
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{
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translate([-66,0,0]) cube([132,tl,20]);
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translate([-66,0,1]) rotate([1,0,0]) cube([132,tl,20]);
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translate([-66,0,1]) rotate([-1,0,0]) cube([132,tl,20]);
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}
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module ptfe_right()
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{
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// PTFE
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translate([-72.3,tl+spc/2,-4]) rotate([0,22,0]) cylinder(r=2.2,h=50,$fn=60);
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translate([-71.6,tl+spc/2,-4]) rotate([0,10,0]) cylinder(r2=2.2,r1=2.8,h=3,$fn=60);
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// screw
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translate([-64.5,tl+spc/2,-3.5]) rotate([0,-2,0]) cylinder(r=1.4,h=12,$fn=60);
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translate([-64.5,tl+spc/2,-3.5]) rotate([0,-2,0]) cylinder(r1=1.8,r2=1.4,h=3,$fn=60);
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}
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module ptfe_left()
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{
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// PTFE
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translate([72.3,tl+spc/2,-4]) rotate([0,-22,0]) cylinder(r=2.2,h=50,$fn=60);
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translate([71.6,tl+spc/2,-4]) rotate([0,-10,0]) cylinder(r2=2.2,r1=2.8,h=3,$fn=60);
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// screw
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translate([64.5,tl+spc/2,-3.5]) rotate([0,2,0]) cylinder(r=1.4,h=12,$fn=60);
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translate([64.5,tl+spc/2,-3.5]) rotate([0,2,0]) cylinder(r1=1.8,r2=1.4,h=3,$fn=60);
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}
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module buffer_front()
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{
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difference()
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{
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union()
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{
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// base shape
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translate([-75,-3,-3]) cube([150,40.5,8]);
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translate([-75,-3,-3]) cube([18,40.5,13]);
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translate([57,-3,-3]) cube([18,40.5,13]);
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// hold together screw body
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translate([-55,-3,5]) rotate([-90,0,0]) cylinder(r=8, h=40.5, $fn=6);
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translate([55,-3,5]) rotate([-90,0,0]) cylinder(r=8, h=40.5, $fn=6);
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// nut reinforcement
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translate([-55,37,5]) rotate([-90,0,0]) cylinder(r1=6, r2=5, h=1.85, $fn=6);
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translate([55,37,5]) rotate([-90,0,0]) cylinder(r1=6, r2=5, h=1.85, $fn=6);
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}
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// hold together screws
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translate([-55,-2,5]) rotate([-90,0,0]) cylinder(r=1.8, h=40, $fn=30);
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translate([55,-2,5]) rotate([-90,0,0]) cylinder(r=1.8, h=40, $fn=30);
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// nut trap
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translate([-55,35.5,5]) rotate([-90,0,0]) cylinder(r1=3.15, r2=3.5, h=3.5, $fn=6);
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translate([55,35.5,5]) rotate([-90,0,0]) cylinder(r1=3.15, r2=3.5, h=3.5, $fn=6);
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// nut head
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translate([-55,-6.9,5]) rotate([-90,0,0]) cylinder(r=3.1, h=5, $fn=30);
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translate([55,-6.9,5]) rotate([-90,0,0]) cylinder(r=3.1, h=5, $fn=30);
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// plates and PTFE
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s=0;
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translate([0,s,0]) plate();
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translate([0,s,0]) ptfe_right();
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s1=6.5;
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translate([0,s1,0]) plate();
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translate([0,s1,0]) ptfe_left();
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s2=6.5*2;
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translate([0,s2,0]) plate();
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translate([0,s2,0]) ptfe_right();
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s3=6.5*3;
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translate([0,s3,0]) plate();
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translate([0,s3,0]) ptfe_left();
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s4=6.5*4;
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translate([0,s4,0]) plate();
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translate([0,s4,0]) ptfe_right();
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s5=6.5*5;
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translate([0,s5,0]) plate();
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// edges
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translate([-95,-10,2.6]) rotate([0,10,0]) cube([20,60,20]);
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translate([75,-10,0.9]) rotate([0,-10,0]) cube([20,60,20]);
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translate([-95,-10,-24]) rotate([35,0,0]) cube([200,20,20]);
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translate([-95,30.5,-11.3]) rotate([-35,0,0]) cube([200,20,20]);
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translate([-80,-21,-5]) rotate([0,0,45]) cube([20,20,20]);
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translate([-80,29,-5]) rotate([0,0,45]) cube([20,20,20]);
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translate([82,-21,-5]) rotate([0,0,45]) cube([20,20,20]);
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translate([80,29,-5]) rotate([0,0,45]) cube([20,20,20]);
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translate([-40,1,2]) cube([80,32,20]);
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translate([-47,1,9.5]) rotate([0,45,0]) cube([10,32,10]);
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translate([33,1,9.5]) rotate([0,45,0]) cube([10,32,10]);
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translate([75,1.9,0]) rotate([0,-60,0]) cube([20,4.5,30]);
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translate([75,14.9,0]) rotate([0,-60,0]) cube([20,4.5,30]);
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translate([75,27.9,0]) rotate([0,-60,0]) cube([20,4.5,30]);
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translate([-85,8.4,17]) rotate([0,60,0]) cube([20,4.5,30]);
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translate([-85,21.4,17]) rotate([0,60,0]) cube([20,4.5,30]);
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// better printing
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difference()
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{
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union()
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{
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for(i = [15 : 15 : 120])
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{
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translate([-73+i,5,-3.05]) cube([10,10,0.3]);
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translate([-73+i,22,-3.05]) cube([10,10,0.3]);
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}
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}
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translate([-8,4,-20]) cube([16,12,20]);
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}
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//version
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translate([-5,15,-2.75]) rotate([0,180,180]) linear_extrude(height = 0.3)
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{ text("R1",font = "helvetica:style=Bold", size=6, center=true); }
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}
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}
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buffer_front();
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