X-Git-Url: http://git.hcoop.net/clinton/prusa3.git/blobdiff_plain/eff6608eba0ebe77b2e12f18d637398487feef69..8ac34a2a68ebe8a501242a740a4f3c419cbf5993:/box_frame/y-drivetrain.scad

diff --git a/box_frame/y-drivetrain.scad b/box_frame/y-drivetrain.scad
dissimilarity index 71%
index 301a3e8..ae1c68a 100644
--- a/box_frame/y-drivetrain.scad
+++ b/box_frame/y-drivetrain.scad
@@ -1,81 +1,104 @@
-// PRUSA iteration3
-// Y drivetrain (idler and stepper holders)
-// GNU GPL v3
-// Josef Průša <josefprusa@me.com>
-// Václav 'ax' Hůla <axtheb@gmail.com>
-// http://www.reprap.org/wiki/Prusa_Mendel
-// http://github.com/prusajr/PrusaMendel
-
-include <configuration.scad>
-use <inc/bearing-guide.scad>
-
-module motorholder(thickness=10){
-    difference(){
-        union(){
-            // Motor holding part
-            translate([29,-21+50,0])
-            {
-                //#cube([42,42,2], center=true);
-                difference(){
-                    union(){
-                        translate([-21+4.5,0,5]) cube([9,31,thickness], center=true);
-                        nema17([0,1,1,0], thickness=thickness, shadow=false);
-                        mirror([0,0,1])translate([0,0,-10])nema17([0,1,1,0], thickness=thickness, shadow=7);
-                        // Parts joining part
-                        translate([-29,-21,0]) cube([14,30,thickness]);
-                    }
-                    // Motor mounting holes
-                    translate([0,0,thickness]) mirror([0,0,1]) nema17([0,1,1,0], thickness=thickness, holes=true);
-                }
-            }
-
-            // Front holding part
-            translate([0,10,0]) cylinder(h = thickness, r=8);
-            translate([0,20,5]) cube([16,20,thickness], center=true);
-            translate([0,30,0]) cylinder(h = thickness, r=8);
-        }
-        translate([0,10,-1]) cylinder(h = 12, r=4.5);
-        translate([0,30,-1]) cylinder(h = 12, r=4.5);
-    }
-}
-
-module oval(r=4,l=15,h=2){
-translate([l/2,0,0])cylinder(r=r,h=h,$fn=4);
-translate([-l/2,0,0])cylinder(r=r,h=h,$fn=4);
-translate([0,0,h/2])cube([l,r*2,h],center=true);
-}
-
-
-module idlermount(){
-    difference(){
-        union(){
-            translate([0, idler_bearing[2]/2 - 6, 0] ) cube_fillet([16,40 + idler_bearing[2], 10 + idler_width], vertical = [0,0,0,0], top = [3,0,3,0], bottom = [3,0,3,0], center=true);
-        }
-//        translate([0,12,-1]) cylinder(h = 120, r=idler_bearing[2]/2 + 1, $fn=7, center=true);
-        translate([0,-10,-12]) rotate([0,0,90]) oval(r=4.5,l=12,h=25);
-	translate([0,-20,0]) rotate([90,60,0]) cylinder(r=3.4, h=5, $fn=6, center=true);
-	translate([0,-20,0]) rotate([90,0,0]) cylinder(r=3.2/2, h=15, $fn=10, center=true);
-
-//        translate([0,12,0]) {
-//            %cylinder(h = idler_width, r=(idler_bearing[0] / 2) + 2 * single_wall_width, center=true);
-//            cylinder(h = idler_width + 1, r=(idler_bearing[0] / 2) + 8, center=true);
-//        }
-            translate([0,12,0]) {
-                idler_assy(idler_bearing);
-                translate([0, 10, 0]) cube([20, 20, idler_width + 1], center=true);
-            }
-
-    }
-}
-
-
-motorholder();
-translate([32,20,8]) rotate([0,90,0]) idlermount();
-
-if (idler_bearing[3] == 1) {
-    translate([0, -12 - idler_bearing[0] / 2, 0]) {
-        bearing_guide_inner();
-        translate([idler_bearing[0]+10, 0, 0])
-            bearing_guide_outer();
-    }
-}
+// PRUSA iteration3
+// Y drivetrain (idler and stepper holders)
+// GNU GPL v3
+// Josef Průša <josefprusa@me.com>
+// Václav 'ax' Hůla <axtheb@gmail.com>
+// http://www.reprap.org/wiki/Prusa_Mendel
+// http://github.com/josefprusa/Prusa3
+
+// ThingDoc entry
+/**
+ * @id yMotorHolder
+ * @name Y Axis Motor Holder
+ * @category Printed
+ */
+ 
+/**
+ * @id yIdler
+ * @name Y Axis Belt Idler
+ * @category Printed
+ */ 
+ 
+include <configuration.scad>
+use <inc/bearing-guide.scad>
+
+module motorholder(thickness=10){
+    difference(){
+        union(){
+            // Motor holding part
+            translate([29, -21 + 50, 0])
+            {
+                difference(){
+                    union(){
+                        translate([-21 + 4.5, 0, 5]) cube([9, 31, thickness], center=true);
+                        nema17([0, 1, 1, 0], thickness=thickness, shadow=false);
+                        mirror([0, 0, 1]) translate([0, 0, -10]) nema17([0, 1, 1, 0], thickness=thickness, shadow=7);
+                        // Parts joining part
+                        translate([-29, -21, 0]) cube([14, 30, thickness]);
+                    }
+                    // Motor mounting holes
+                    translate([0, 0, thickness]) mirror([0, 0, 1]) nema17([0, 1, 1, 0], thickness=thickness, holes=true);
+                }
+            }
+
+            // Front holding part
+            translate([0, 10, 0]) cylinder(h = thickness, r=8);
+            translate([0, 20, 5]) cube([16, 20, thickness], center=true);
+            translate([0, 30, 0]) cylinder(h = thickness, r=8);
+        }
+        translate([0, 10, -1]) cylinder(h = 12, r=4.5, $fn=32);
+        translate([0, 30, -1]) cylinder(h = 12, r=4.5, $fn=32);
+    }
+}
+
+module oval(r=4, l=14, h=2){
+    intersection() {
+        union() {
+            translate([l / 2, 0, 0]) cylinder(r=r, h=h, $fn=4);
+            //translate([-l / 2, 0, 0]) cylinder(r=r, h=h, $fn=4);
+            translate([0, 0, h / 2]) cube([l, r * 2, h], center=true);
+        }
+        translate([0, 0, h / 2]) cube([l + r * 1.2, r * 2, h], center=true);
+    }
+}
+
+module idlermount(len=45, narrow_len=0, narrow_width=0, rod=threaded_rod_diameter_horizontal / 2, idler_height=16){
+    difference(){
+        union(){
+            //wide part holding bearing
+            translate([- (10 + idler_width) / 2, -25 + narrow_len, 0] ) cube_fillet([10 + idler_width, len + idler_bearing[2] * 1.1 - narrow_len, idler_height]);
+            //For X there is narrow part inside the x-idler
+            if (narrow_len > 0){
+                translate([-narrow_width / 2, -25, 0] ) cube_fillet([narrow_width, len + idler_bearing[2], idler_height], vertical=[0, 0, 2, 2]);
+                mirror([1, 0, 0]) translate([-narrow_width / 2, narrow_len -25, idler_height / 2 ]) fillet(1.5, idler_height - 0.04, $fn=8);
+                translate([-narrow_width / 2, narrow_len -25, idler_height / 2]) fillet(1.5, idler_height - 0.04, $fn=8);
+            }
+        }
+        translate([-12, -8, idler_height / 2]) rotate([90, 0, 90]) oval(r=rod + 0.01, l=12, h=25);
+        translate([0, -13 - single_wall_width*2, idler_height / 2]) {
+            // nut for tensioning screw
+            translate([0,0,0]) rotate([90, 0, 0]) cylinder(r=m4_nut_diameter_horizontal / 2, h=3.8, $fn=6);
+            // nut insert
+            translate([-2, -3.8, -m4_diameter * 1.5 / 2]) cube([20, 3.8, m4_diameter * 1.5+0.3]);
+        }
+
+        // tensioning screw goes here
+        translate([0, -19, idler_height / 2]) rotate([90, 90, 0]) cylinder(r=m4_diameter / 2, h=15, $fn=small_hole_segments, center=true);
+        // bearing goes there
+        translate([0, len + idler_bearing[2] - 35, idler_height / 2]) {
+            rotate([0, 90, 0]) idler_assy(idler_bearing);
+            translate([0, 10, 0]) cube([idler_width + 1, 20, idler_height + 2], center=true);
+        }
+
+    }
+}
+
+
+motorholder();
+translate([32, 25, 0])  idlermount();
+
+if (idler_bearing[3] == 1) {
+    translate([0, -12 - idler_bearing[0] / 2, 0]) {
+        render() bearing_assy();
+    }
+}