From 79b4b60af9dbb11a06c5d112babffc40fde3bfaa Mon Sep 17 00:00:00 2001
From: =?utf8?q?V=C3=A1clav=20=27Ax=27=20H=C5=AFla?= <axtheb@gmail.com>
Date: Wed, 13 Jun 2012 09:04:07 +0200
Subject: [PATCH] idler fix

---
 x-end.scad | 69 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 41 insertions(+), 28 deletions(-)

diff --git a/x-end.scad b/x-end.scad
index 3a04ed2..972f52d 100644
--- a/x-end.scad
+++ b/x-end.scad
@@ -11,43 +11,43 @@ use <bushing.scad>
 rod_distance = 45;
 
 module x_end_motor(){
+    mirror([0,1,0]) {
 
-    x_end_idler([3,3,0,0], thru=false);
-    /// motor dummy
-    //%translate([21-5,-21-11,25]) cube([42,42,42], center = true);
+        x_end_base([3,3,0,0], thru=false);
+        /// motor dummy
+        //%translate([21-5,-21-11,25]) cube([42,42,42], center = true);
 
 
-    difference(){
-        union(){
-            translate([-13.5,-15,26]) cube_fillet([17,12,52], center = true, vertical=[0,0,3,1.5], top=[0,3,6,3]);
-            translate([-10,-34,9]) intersection(){
-                cube_fillet([10,37,18], center = true, vertical=[0,0,0,0], top=[0,3,5,3]);
-                translate([-10/2,10,-26]) rotate([45,0,0]) cube_fillet([10,60,60], radius=2);
+        difference(){
+            union(){
+                translate([-13.5,-15,26]) cube_fillet([17,12,52], center = true, vertical=[0,0,3,1.5], top=[0,3,6,3]);
+                translate([-10,-34,9]) intersection(){
+                    cube_fillet([10,37,18], center = true, vertical=[0,0,0,0], top=[0,3,5,3]);
+                    translate([-10/2,10,-26]) rotate([45,0,0]) cube_fillet([10,60,60], radius=2);
+                }
+                translate([-15, -32, 30.25]) rotate([90, 0, 0])  rotate([0, 90, 0]) nema17(places=[1,0,1,1], h=10);
             }
-            translate([-15, -32, 30.25]) rotate([90, 0, 0])  rotate([0, 90, 0]) nema17(places=[1,0,1,1], h=10);
-        }
 
-        // motor screw holes
-        translate([21-5,-21-11,30.25]){
-            // belt hole
-            translate([-30,11,0]) cube([10,26,20], center = true);
-            //motor mounting holes
-            translate([-29, 0, 0]) rotate([0, 0, 0])  rotate([0, 90, 0]) nema17(places=[1,1,0,1], holes=true, shadow=5, $fn=7, h=8);
+            // motor screw holes
+            translate([21-5,-21-11,30.25]){
+                // belt hole
+                translate([-30,11,0]) cube([10,26,20], center = true);
+                //motor mounting holes
+                translate([-29, 0, 0]) rotate([0, 0, 0])  rotate([0, 90, 0]) nema17(places=[1,1,0,1], holes=true, shadow=5, $fn=7, h=8);
+            }
         }
+        //smooth rod caps
+        translate([-22, -10.5, 0]) cube([17, 2, 15]);
+        translate([-22, -10.5, 45]) cube([17, 2, 10]);
     }
-    //smooth rod caps
-    translate([-22, -10.5, 0]) cube([17, 2, 15]);
-    translate([-22, -10.5, 45]) cube([17, 2, 10]);
 }
 
 
-module x_end_idler(vfillet=[3,3,3,3], thru=true){
+module x_end_base(vfillet=[3,3,3,3], thru=true, len=40){
     difference(){
         union(){
             difference(){
-                translate([-4.5-10+2-1,17.5-10+2,30]) cube_fillet([15+2,35+5,60], center = true, vertical=vfillet, top=[5,3,5,3]);
-                //#translate([0,0,26]) cube_fillet([17,13.8,80], center = true);
-                //#cylinder(r=5.1, h=80);
+                translate([-4.5-10+2-1,-10+len/2,30]) cube_fillet([15+2,len,60], center = true, vertical=vfillet, top=[5,3,5,3]);
                 bushing_negative(60);
             }
             //rotate([0,0,0]) translate([0,-9.5,0]) 
@@ -74,7 +74,7 @@ module x_end_idler(vfillet=[3,3,3,3], thru=true){
         }
 
         // belt hole
-        translate([-5.5-10+1.5,22-10,30]) cube([10,46,32], center = true);
+        translate([-5.5-10+1.5,22-9,30]) cube([10,55,32], center = true);
 
         if(thru == true){
             translate([-14,-11,6]) rotate([-90,0,0]) pushfit_rod(8,50);
@@ -84,8 +84,6 @@ module x_end_idler(vfillet=[3,3,3,3], thru=true){
             translate([-14,-7,rod_distance+6]) rotate([-90,0,0]) pushfit_rod(8,50);
         }
 
-        // idler hole
-        translate([0,17+7,30.25]) rotate([0,-90,0]) cylinder(h = 80, r=2.2, $fn=30);
 
     }
 
@@ -93,9 +91,24 @@ module x_end_idler(vfillet=[3,3,3,3], thru=true){
     translate([0,17,0]) %cylinder(h = 70, r=2.5);
 
 }
+
+
+module x_end_idler(){
+    difference() {
+        x_end_base(len=42+idler_size_inner_r);
+        // idler hole
+        translate([0,17+6+idler_size_inner_r,30.25-((bearing_type==0)? 3 : 0)]) rotate([0,-90,0]) cylinder(h = 80, r=idler_size_inner_r-0.2, $fn=30);
+        if (bearing_type == 0) 
+        translate([-9,17+6+idler_size_inner_r,30.25-3]) {
+            rotate([0,-90,0]) cylinder(h = 10, r=idler_size/2+4, $fn=30);
+            translate([-5,10,0]) cube([10,20,idler_size+8], center=true);
+        }
+    }
+}
+
 mirror([0,0,0]) x_end_idler(thru=true);
 // translate([40,40,0]) x_end_idler(thru=false);
-translate([40,0,0]) mirror([0,1,0]) x_end_motor();
+translate([40,0,0]) x_end_motor();
 
 module pushfit_rod(diameter,length){
     cylinder(h = length, r=diameter/2, $fn=30);
-- 
2.20.1