Initial commit

carriage.scad

@@ -0,0 +1,179 @@
+
+rod_diameter = 8;
+rod_separation = 70; // center to center
+rod_length = 400; 
+
+bushing_diameter = 15.4;
+bushing_length = 16.8;
+bushing_separation = 24; // edge to edge; original carriage: 8
+
+belt_width = 6 ; // a little more, maybe 6.2
+belt_thickness = 1.5;
+belt_separation = 10; // edge to edge
+
+belt_length = rod_length;
+
+belt_rod_separation = 20; // center to center
+belt_y_offset = rod_separation / 2 - belt_rod_separation;
+
+bed_x = 320;
+bed_y = 155;
+
+bed_thickness = 5;
+
+bed_z_home = -16; // distance between center of rods and top of heat bed when Z axis is homed
+
+wall_thickness = 3;
+carriage_length = bushing_separation + bushing_length * 2 + wall_thickness * 2;
+
+motor_length = 30;
+motor_y_offset = 6;
+motor_z_offset = 30;
+
+module printer() {
+    // rods
+    translate([0,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=rod_diameter, h=rod_length, $fn=64); 
+    translate([0, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=rod_diameter, h=rod_length, $fn=64);
+
+    // print bed
+    translate([rod_length/2 - bed_x/2, -bed_y/2, bed_z_home - bed_thickness]) cube([bed_x, bed_y, bed_thickness]);
+    
+    // belts
+    color([0,0,0,0.3]) translate([0,  belt_y_offset - belt_width/2, belt_separation/2]) cube([belt_length, belt_width, belt_thickness]);
+    color([0,0,0,0.3]) translate([0,  belt_y_offset - belt_width/2, -belt_separation/2 - belt_thickness]) cube([belt_length, belt_width, belt_thickness]);
+    
+    // endstop switch
+    translate([rod_length - 10, 2, 30]) color([0, 0, 0, 0.5]) cube([10, 15, 5]);
+}
+
+module extruder() {
+    translate([-wall_thickness, 0, 0]) {
+        // motor body
+        color([0.5, 0.5, 0.5]) translate([-15, 0, 0]) cube([motor_length, 42, 42], center=true);        
+        color([0.5, 0.5, 0.5]) rotate([0, 90, 0]) cylinder(d=22, h=2, $fn=64);
+        
+        // motor shaft
+        color([0.8, 0.8, 0.8]) rotate([0, 90, 0]) cylinder(d=5, h=20, $fn=64);
+    }
+    
+    // extruder body
+    color([0, 0, 0, 0.5]) translate([0, -21, -21]) cube([26, 46, 44]);
+    // heat sink + fan
+    color([1,1,1,0.5]) translate([32, 2, 3]) rotate([45, 0, 0]) cube([21, 40, 40], center=true);    
+    // large gear
+    translate([7.5, 15.5, 15.5]) color([0,0,0,0.5]) rotate([0, 90, 0])  cylinder(d=34, h=4, center=true);
+    // heat break
+    color([1, 1, 1, 0.5]) translate([12, 12, -21 -25 ]) cylinder(d=8, h=25);
+    translate([3,3,-42]) cube([25,18,12]); 
+}
+
+
+
+module carriage_bushings() {
+    translate([ bushing_separation/2 + bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    translate([-bushing_separation/2 - bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    translate([ bushing_separation/2 + bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    translate([-bushing_separation/2 - bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+}
+
+module carriage_bushings_cutout() {
+    hull() {
+        translate([ bushing_separation/2 + bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([ bushing_separation/2 + bushing_length/2,  rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }
+    hull() {
+        translate([-bushing_separation/2 - bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([-bushing_separation/2 - bushing_length/2,  rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }
+    hull() {
+        translate([ bushing_separation/2 + bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([ bushing_separation/2 + bushing_length/2, -rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }
+    hull() {
+        translate([-bushing_separation/2 - bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([-bushing_separation/2 - bushing_length/2, -rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }    
+}
+
+
+module motor_plate() {
+    difference() {
+        cube([wall_thickness, 42 + wall_thickness * 2 + 2, 44], center=true);
+        
+        translate([0,  15.5 , 15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        translate([0,  15.5, -15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        translate([0, -15.5,  15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        translate([0, -15.5, -15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        rotate([0, 90, 0]) cylinder(d=22, h=wall_thickness, center=true, $fn=64);
+    }
+    hull() {
+        translate([motor_length/2 + wall_thickness/2, 21 + wall_thickness/2 +1, -21 - 1.5]) cube([motor_length, wall_thickness, 1], center=true);
+        translate([0, 21 + wall_thickness/2 + 1, 21.5]) cube([wall_thickness, wall_thickness, 1], center=true);
+    }
+    hull() {
+        translate([motor_length/2 + wall_thickness/2, -21 - wall_thickness/2 -1, -21 - 1.5]) cube([motor_length, wall_thickness, 1], center=true);
+        translate([0, -21 - wall_thickness/2 -1, 21.5]) cube([wall_thickness, wall_thickness, 1], center=true);
+    }
+}
+
+module carriage() {
+
+    
+    platform_length = 33;
+    platform_thickness = 3;
+    platform_top_z = 8.5;
+    
+    platform2_length = 10;
+    
+    difference() {
+        union() {
+            // "katamaran" carriages
+            translate([0, rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter + wall_thickness * 2, h=carriage_length, center=true, $fn=64);
+            translate([0,-rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter + wall_thickness * 2, h=carriage_length, center=true, $fn=64);
+            translate([0, rod_separation/2, -bushing_diameter/4 - wall_thickness/2]) cube([carriage_length, bushing_diameter + wall_thickness * 2, bushing_diameter/2 + wall_thickness], center=true);
+            translate([0, -rod_separation/2, -bushing_diameter/4 - wall_thickness/2]) cube([carriage_length, bushing_diameter + wall_thickness * 2, bushing_diameter/2 + wall_thickness], center=true);           
+
+            
+
+            translate([carriage_length/2 - platform_length/2, rod_separation/2 - bushing_diameter / 4 - wall_thickness / 2, platform_top_z / 2]) cube([platform_length, bushing_diameter/2 + wall_thickness, platform_top_z], center=true);
+            translate([carriage_length/2 - platform_length/2,-rod_separation/2 + bushing_diameter / 4 + wall_thickness / 2, platform_top_z / 2]) cube([platform_length, bushing_diameter/2 + wall_thickness, platform_top_z], center=true);
+
+            
+            // platforms
+            translate([carriage_length/2 - platform_length/2, 0, platform_top_z - platform_thickness/2]) cube([platform_length, rod_separation, platform_thickness], center=true);
+            //translate([-carriage_length/2 + platform2_length/2, 0, platform_top_z - platform_thickness/2]) cube([platform2_length, rod_separation, platform_thickness], center=true);
+            
+            // motor plate
+            translate([carriage_length/2 - 30 - wall_thickness/2, motor_y_offset, motor_z_offset]) motor_plate();
+            
+            
+        }
+        
+        // cutouts for bushings and rod clearance
+        carriage_bushings_cutout();
+        hull() {
+            translate([0, rod_separation/2,   0]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+            translate([0, rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+        }
+        hull() {
+            translate([0, -rod_separation/2,   0]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+            translate([0, -rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+        }
+        
+        //cutouts for belt
+        //translate([0, belt_y_offset, belt_separation/2 + belt_thickness/2]) cube([belt_length, belt_width * 1.5, belt_thickness], center=true);
+        //translate([0, belt_y_offset - belt_width * 1.5, belt_separation/2 + belt_thickness -platform_thickness/2]) cube([belt_length, belt_width * 1.5, platform_thickness], center=true);
+        
+        #translate([5, belt_y_offset + belt_width, platform_top_z - wall_thickness]) cylinder(d=2.5, h=wall_thickness, $fn=64);
+        #translate([5, belt_y_offset - belt_width, platform_top_z - wall_thickness]) cylinder(d=2.5, h=wall_thickness, $fn=64);
+        
+        
+    }   
+}
+
+
+%printer();
+translate([100, 0, 0]) {
+    translate([carriage_length/2 - motor_length - wall_thickness, motor_y_offset, motor_z_offset]) rotate([0, 0, -180]) %extruder();
+    carriage();
+}

printer.scad

@@ -0,0 +1,179 @@
+
+rod_diameter = 8;
+rod_separation = 70; // center to center
+rod_length = 400; 
+
+bushing_diameter = 15.4;
+bushing_length = 16.8;
+bushing_separation = 24; // edge to edge; original carriage: 8
+
+belt_width = 6 ; // a little more, maybe 6.2
+belt_thickness = 1.5;
+belt_separation = 10; // edge to edge
+
+belt_length = rod_length;
+
+belt_rod_separation = 20; // center to center
+belt_y_offset = rod_separation / 2 - belt_rod_separation;
+
+bed_x = 320;
+bed_y = 155;
+
+bed_thickness = 5;
+
+bed_z_home = -16; // distance between center of rods and top of heat bed when Z axis is homed
+
+wall_thickness = 3;
+carriage_length = bushing_separation + bushing_length * 2 + wall_thickness * 2;
+
+motor_length = 30;
+motor_y_offset = 6;
+motor_z_offset = 30;
+
+module printer() {
+    // rods
+    translate([0,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=rod_diameter, h=rod_length, $fn=64); 
+    translate([0, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=rod_diameter, h=rod_length, $fn=64);
+
+    // print bed
+    translate([rod_length/2 - bed_x/2, -bed_y/2, bed_z_home - bed_thickness]) cube([bed_x, bed_y, bed_thickness]);
+    
+    // belts
+    color([0,0,0,0.3]) translate([0,  belt_y_offset - belt_width/2, belt_separation/2]) cube([belt_length, belt_width, belt_thickness]);
+    color([0,0,0,0.3]) translate([0,  belt_y_offset - belt_width/2, -belt_separation/2 - belt_thickness]) cube([belt_length, belt_width, belt_thickness]);
+    
+    // endstop switch
+    translate([rod_length - 10, 2, 30]) color([0, 0, 0, 0.5]) cube([10, 15, 5]);
+}
+
+module extruder() {
+    translate([-wall_thickness, 0, 0]) {
+        // motor body
+        color([0.5, 0.5, 0.5]) translate([-15, 0, 0]) cube([motor_length, 42, 42], center=true);        
+        color([0.5, 0.5, 0.5]) rotate([0, 90, 0]) cylinder(d=22, h=2, $fn=64);
+        
+        // motor shaft
+        color([0.8, 0.8, 0.8]) rotate([0, 90, 0]) cylinder(d=5, h=20, $fn=64);
+    }
+    
+    // extruder body
+    color([0, 0, 0, 0.5]) translate([0, -21, -21]) cube([26, 46, 44]);
+    // heat sink + fan
+    color([1,1,1,0.5]) translate([32, 2, 3]) rotate([45, 0, 0]) cube([21, 40, 40], center=true);    
+    // large gear
+    translate([7.5, 15.5, 15.5]) color([0,0,0,0.5]) rotate([0, 90, 0])  cylinder(d=34, h=4, center=true);
+    // heat break
+    color([1, 1, 1, 0.5]) translate([12, 12, -21 -25 ]) cylinder(d=8, h=25);
+    translate([3,3,-42]) cube([25,18,12]); 
+}
+
+
+
+module carriage_bushings() {
+    translate([ bushing_separation/2 + bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    translate([-bushing_separation/2 - bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    translate([ bushing_separation/2 + bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    translate([-bushing_separation/2 - bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+}
+
+module carriage_bushings_cutout() {
+    hull() {
+        translate([ bushing_separation/2 + bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([ bushing_separation/2 + bushing_length/2,  rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }
+    hull() {
+        translate([-bushing_separation/2 - bushing_length/2,  rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([-bushing_separation/2 - bushing_length/2,  rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }
+    hull() {
+        translate([ bushing_separation/2 + bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([ bushing_separation/2 + bushing_length/2, -rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }
+    hull() {
+        translate([-bushing_separation/2 - bushing_length/2, -rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+        translate([-bushing_separation/2 - bushing_length/2, -rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=bushing_diameter, h=bushing_length, $fn=64, center=true);
+    }    
+}
+
+
+module motor_plate() {
+    difference() {
+        cube([wall_thickness, 42 + wall_thickness * 2 + 2, 44], center=true);
+        
+        translate([0,  15.5 , 15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        translate([0,  15.5, -15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        translate([0, -15.5,  15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        translate([0, -15.5, -15.5]) rotate([0, 90, 0]) cylinder(d=3.8, h=wall_thickness, center=true, $fn=64);
+        rotate([0, 90, 0]) cylinder(d=22, h=wall_thickness, center=true, $fn=64);
+    }
+    hull() {
+        translate([motor_length/2 + wall_thickness/2, 21 + wall_thickness/2 +1, -21 - 1.5]) cube([motor_length, wall_thickness, 1], center=true);
+        translate([0, 21 + wall_thickness/2 + 1, 21.5]) cube([wall_thickness, wall_thickness, 1], center=true);
+    }
+    hull() {
+        translate([motor_length/2 + wall_thickness/2, -21 - wall_thickness/2 -1, -21 - 1.5]) cube([motor_length, wall_thickness, 1], center=true);
+        translate([0, -21 - wall_thickness/2 -1, 21.5]) cube([wall_thickness, wall_thickness, 1], center=true);
+    }
+}
+
+module carriage() {
+
+    
+    platform_length = 33;
+    platform_thickness = 3;
+    platform_top_z = 8.5;
+    
+    platform2_length = 10;
+    
+    difference() {
+        union() {
+            // "katamaran" carriages
+            translate([0, rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter + wall_thickness * 2, h=carriage_length, center=true, $fn=64);
+            translate([0,-rod_separation/2, 0]) rotate([0, 90, 0]) cylinder(d=bushing_diameter + wall_thickness * 2, h=carriage_length, center=true, $fn=64);
+            translate([0, rod_separation/2, -bushing_diameter/4 - wall_thickness/2]) cube([carriage_length, bushing_diameter + wall_thickness * 2, bushing_diameter/2 + wall_thickness], center=true);
+            translate([0, -rod_separation/2, -bushing_diameter/4 - wall_thickness/2]) cube([carriage_length, bushing_diameter + wall_thickness * 2, bushing_diameter/2 + wall_thickness], center=true);           
+
+            
+
+            translate([carriage_length/2 - platform_length/2, rod_separation/2 - bushing_diameter / 4 - wall_thickness / 2, platform_top_z / 2]) cube([platform_length, bushing_diameter/2 + wall_thickness, platform_top_z], center=true);
+            translate([carriage_length/2 - platform_length/2,-rod_separation/2 + bushing_diameter / 4 + wall_thickness / 2, platform_top_z / 2]) cube([platform_length, bushing_diameter/2 + wall_thickness, platform_top_z], center=true);
+
+            
+            // platforms
+            translate([carriage_length/2 - platform_length/2, 0, platform_top_z - platform_thickness/2]) cube([platform_length, rod_separation, platform_thickness], center=true);
+            //translate([-carriage_length/2 + platform2_length/2, 0, platform_top_z - platform_thickness/2]) cube([platform2_length, rod_separation, platform_thickness], center=true);
+            
+            // motor plate
+            translate([carriage_length/2 - 30 - wall_thickness/2, motor_y_offset, motor_z_offset]) motor_plate();
+            
+            
+        }
+        
+        // cutouts for bushings and rod clearance
+        carriage_bushings_cutout();
+        hull() {
+            translate([0, rod_separation/2,   0]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+            translate([0, rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+        }
+        hull() {
+            translate([0, -rod_separation/2,   0]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+            translate([0, -rod_separation/2, -50]) rotate([0, 90, 0]) cylinder(d=rod_diameter + 3, h=rod_length, center=true, $fn=64);
+        }
+        
+        //cutouts for belt
+        //translate([0, belt_y_offset, belt_separation/2 + belt_thickness/2]) cube([belt_length, belt_width * 1.5, belt_thickness], center=true);
+        //translate([0, belt_y_offset - belt_width * 1.5, belt_separation/2 + belt_thickness -platform_thickness/2]) cube([belt_length, belt_width * 1.5, platform_thickness], center=true);
+        
+        #translate([5, belt_y_offset + belt_width, platform_top_z - wall_thickness]) cylinder(d=2.5, h=wall_thickness, $fn=64);
+        #translate([5, belt_y_offset - belt_width, platform_top_z - wall_thickness]) cylinder(d=2.5, h=wall_thickness, $fn=64);
+        
+        
+    }   
+}
+
+
+%printer();
+translate([100, 0, 0]) {
+    translate([carriage_length/2 - motor_length - wall_thickness, motor_y_offset, motor_z_offset]) rotate([0, 0, -180]) %extruder();
+    carriage();
+}

schalterhalter.scad

@@ -0,0 +1,19 @@
+$fn=64;
+
+difference() {
+    hull() {
+        translate([0, 0, 0]) cylinder(r=3, h=5);
+        translate([0, 50, 0]) cylinder(r=3, h=5);
+        translate([110, 0, 0]) cylinder(r=3, h=5);
+        translate([110, 50, 0]) cylinder(r=3, h=5);        
+    }      
+    translate([30, 3, 0]) cylinder(d=3.5, h=5);
+    translate([90, 3, 0]) cylinder(d=3.5, h=5);
+    
+    translate([30, 43, 0]) cylinder(d=3.5, h=5);
+
+    translate([5, 7, 0]) cube([50, 30, 5]);
+    translate([-3, -3, 1.5]) cube([120, 10, 2]);    
+}
+
+    translate([70, 0, -5]) cube([3, 50, 5]);