Merge branch 'master' of git://github.com/Thav/Prusa3 into Thav-master

[clinton/prusa3.git] / box_frame / y-drivetrain.scad

diff --git a/box_frame/y-drivetrain.scad b/box_frame/y-drivetrain.scad
index 33f71d3..ae1c68a 100644 (file)
--- a/box_frame/y-drivetrain.scad
+++ b/box_frame/y-drivetrain.scad
@@ -4,8 +4,21 @@
 // Josef Průša <josefprusa@me.com>
 // Václav 'ax' Hůla <axtheb@gmail.com>
 // http://www.reprap.org/wiki/Prusa_Mendel
-// http://github.com/prusajr/PrusaMendel
+// 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>
 
@@ -15,7 +28,6 @@ module motorholder(thickness=10){
             // 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);
@@ -34,47 +46,59 @@ module motorholder(thickness=10){
             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);
+        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=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 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=42, narrow_len=0, narrow_width=0, rod=threaded_rod_diameter_horizontal / 2, idler_height=16){
+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] - narrow_len, idler_height]);
+            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, -10, idler_height / 2]) rotate([90, 0, 90]) oval(r=rod, l=12, h=25);
-        translate([0, -17, idler_height / 2]) rotate([90, 0, 0]) cylinder(r=3.4, h=9, $fn=6, center=true);
-        translate([0, -19, idler_height / 2]) rotate([90, 90, 0]) cylinder(r=3.2/2, h=15, $fn=7, center=true);
+        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]);
+        }
 
-            translate([0, len + idler_bearing[2] - 33, 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);
-            }
+        // 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, 20, 0])  idlermount();
+translate([32, 25, 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();
+        render() bearing_assy();
     }
 }