parts list update

diff --git a/README.md b/README.md
index 9122174..c231b65 100644 (file)
--- a/README.md
+++ b/README.md
@@ -2,20 +2,31 @@ wilson
 ======
 
 Reprap Wilson, 3D printer design
+Published under GPL v3
 
-This is my reprap printer design, shamelessly derived from ideas seen on several other printers, most notably the Prusa i3.  
+This is my reprap printer design, a derivative from Josef Prusa's i3 with the
+following goals:
 
-The main goals of Wilson are:
+1.  Replace the waterjet metal frame / wooden box frame with an inexpensive
+       and rigid frame made from standard 2020 Aluminum Extrusion.
 
-1. To eliminate the need for a costly waterjet frame, or a difficult to make lasercut wood frame, with no compromise to rigidity and ease of adjustment.
-2. To make the build volume parametric (easy to scale up or down by 50%).
-3. To simplify construction of the printer by reducing vitamins.
+2.  To make the build volume parametric (easy to scale up or down by 50%), with
+       a parametric BOM tool (spreedsheet) to assist in part selection.
+
+3.  To simplify construction of the printer by reducing vitamins and including 
+    detailed assembly steps as part of the design files.  I've made an effort 
+       to reduce the number of unique parts (nuts & bolts) as much as possible.
+       I've also incorporated single-piece Y ends that eliminate about 20 more
+       hardware items.
 
 The repository has these parts:
 
 1. The STL files needed to build the printer.
 2. Documentation section where instructions and parts-list can be found.
-3. Some parts have corresponding OpenSCAD models which are kept in the scad folder.
-4. Various images of the printer/build process are in the images folder.
+3. Some parts have corresponding OpenSCAD models which are kept in the scad 
+   folder.
+4. Various images of the printer/build process are in the images folder 
+   (beneath docs).
+
 
 

diff --git a/doc/how-to-build.txt b/doc/how-to-build.txt
index cc54669..5433141 100644 (file)
--- a/doc/how-to-build.txt
+++ b/doc/how-to-build.txt
@@ -183,16 +183,13 @@ Set the prepared wood print bed aside.
                and SMART electronics mount. 
        e.      Four M5 x 8mm screws    
 
-5.2 
+5.2 Assembly
 
 *      Insert two t-slot nuts into the top side of the aluminum extrusion. 
 *      If you will be using the filament holder, rotate the extrusion 90 
        degrees and insert two more t-slot nuts into the top side. 
 *      Insert the remaining t-slot nuts into the side opposite from the one 
        you started with. 
-
-5.3 
-
 *      Attach the upper Z axis mounts to the ends of the extrusion, tightening 
        the M5 nuts just until snug. Be sure to keep the two t slot nuts for 
        the filament holder on the "top" and the t slot nuts for the SMART 
@@ -252,11 +249,10 @@ Set the prepared wood print bed aside.
 
        a.      Two NEMA17 stepper motors
        b.      Two belt pulleys
-       c.      The two idler bearings and mounts
+       c.      The two idler bearings and plastic bearing guides
        d.      Three M3 x 10mm screws
        e.      Three M3 x 14mm screws
-       f.      Two screws with lock nuts for mounting the belt idlers (probably 
-               M3 x 25mm) 
+       f.      Two M4 x 20mm screws and nuts
 
 *      Mount the motors to the X and Y axis motor mounts using three screws 
        each.  
@@ -295,11 +291,10 @@ Set the prepared wood print bed aside.
 
 *      You will need:
 
-       a.      The X axis drive belt.
-       b.      The Y axis drive belt.
-       c.      The Y belt holder.
-       d.      Two M3 x 20mm screws and nuts.
-       e.      8 Miniature zip ties.
+       a.      The X axis drive belt
+       b.      The Y axis drive belt
+       c.      The Y belt holder
+       d.      8 Miniature zip ties
 
 *      Thread the X axis belt into place and secure with four zip ties (two
        on each side of the extruder, trimmed short after tight).
@@ -321,7 +316,6 @@ Set the prepared wood print bed aside.
        c.      RAMPS electronics frame mount
        c.      Eight M5 x 8mm screws
 
-
 7.6    Attach heat bed
 
 *      You will need:
@@ -427,7 +421,7 @@ Set the prepared wood print bed aside.
        e.      One 40mm x 40mm x 10mm fan.
        f.      Four  M4 x 25 mm screws
        g.      Four  M4 nuts
-       h.      One   M3 x 20mm screw
+       h.      One   M3 x 30mm screw
        i.      Seven M3 x 14mm screws
        j.      Three M3 washers
        k.      One   M3 x 8mm screw

diff --git a/doc/wilson-bom.ods b/doc/wilson-bom.ods
dissimilarity index 96%
index 77873b5..4709475 100644 (file)
Binary files a/doc/wilson-bom.ods and b/doc/wilson-bom.ods differ

diff --git a/scad/configuration.scad b/scad/configuration.scad
index d2641dc..0e1f889 100644 (file)
--- a/scad/configuration.scad
+++ b/scad/configuration.scad
@@ -11,3 +11,6 @@ belt_width = 6.5;
 belt_tooth_distance = 2;
 belt_tooth_ratio = 0.5;
 belt_thickness = 0.8;
+
+idler_bearing_inner_d = 4; // 624 bearing
+

diff --git a/scad/x-end-idler.scad b/scad/x-end-idler.scad
index debfa7d..2b23b04 100644 (file)
--- a/scad/x-end-idler.scad
+++ b/scad/x-end-idler.scad
@@ -4,18 +4,25 @@
 // Josef Průša <iam@josefprusa.cz> and contributors
 // http://www.reprap.org/wiki/Prusa_Mendel
 // http://prusamendel.org
+// Alterations for reprap wilson by M. Rice <mrice411@gmail.com>
 
+include <configuration.scad>
 use <x-end.scad>
 
+idler_offs_z = -1; // negative here means "up" when installed
+idler_offs_y = 7;
+
 module x_end_idler_base(){
  x_end_base();
 }
 
 module x_end_idler_holes(){
  x_end_holes();
- translate(v=[0,-22,30.25]) rotate(a=[0,-90,0]) cylinder(h = 80, r=1.8, $fn=30);
- translate(v=[1.5,-22,30.25]) rotate(a=[0,-90,0]) cylinder(h = 10, r=3.1, $fn=30);
- translate(v=[-21.5,-22,30.25]) rotate(a=[0,-90,0]) rotate(a=[0,0,30]) cylinder(h = 80, r=3.6, $fn=6);
+ translate([0,idler_offs_y,idler_offs_z]) {
+ #translate(v=[0,-22,30.25]) rotate(a=[0,-90,0]) cylinder(h = 80, r=idler_bearing_inner_d/2+.3, $fn=30);
+ #translate(v=[2,-22,30.25]) rotate(a=[0,-90,0]) cylinder(h = 10, r=idler_bearing_inner_d/2 + 1, $fn=30);
+ #translate(v=[-22,-22,30.25]) rotate(a=[0,-90,0]) rotate(a=[0,0,30]) cylinder(h = 80, r=idler_bearing_inner_d, $fn=6);
+ }
 }
  
 // Final part

diff --git a/scad/x-end-motor.scad b/scad/x-end-motor.scad
index 94593d8..e329ff2 100644 (file)
--- a/scad/x-end-motor.scad
+++ b/scad/x-end-motor.scad
@@ -4,6 +4,7 @@
 // Josef Průša <iam@josefprusa.cz> and contributors
 // http://www.reprap.org/wiki/Prusa_Mendel
 // http://prusamendel.org
+// Alterations for reprap Wilson by Martin Rice <mrice411@gmail.com>
 
 use <x-end.scad>
 
@@ -11,6 +12,7 @@ offs_adjuster_y = 5.5;
 adj_block_x = 12;
 adj_block_y = 10;
 adj_block_z = 32;
+motor_offs_z = 0;
 
 module adjustomatic() {
 
@@ -34,35 +36,57 @@ module adjustomatic() {
 
 }
 
+module pocket_endstop()
+{
+translate([-7,-40,0]) 
+    difference() {
+       union() {  translate([-1.5,0,0]) cube(size=[9,16,22]);
+                  translate([3,12,20]) cylinder(r=4,h=10,$fn=16);
+                  translate([-10,50,57.9]) rotate([90,0,0]) cube(size=[9,4,30]);
+       }
+    
+    translate([0,-1,1]) cube(size=[6,16,20]);
+    #translate([3,12,20]) cylinder(r=3,h=21,$fn=16);
+    // grove for wiring along bottom
+    #translate([-9,50.5,58]) rotate([90,0,0]) cube(size=[7,3,31]);
+    // screw holes for endstop switch
+    #translate([-2,7,1.5+5.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
+    #translate([-2,7,1.5+5.5+9.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
+    #translate([0,-3,15]) cube(size=[6,15,20]);
+    }
+}
+
 module x_end_motor_base(){
  x_end_base();
  // motor arm
- translate(v=[-15,31,26.5]) cube(size = [17,44,53], center = true);
+ translate(v=[-15,31,26.5+motor_offs_z]) cube(size = [17,44,53], center = true);
  // z stop adjuster
  adjustomatic();
+ // x endstop holder
+ pocket_endstop();
 }
 
 module x_end_motor_holes(){
  x_end_holes();
  // Position to place
- translate(v=[-1,32,30.25]){
+ translate(v=[-1,32,30.25+motor_offs_z]){
   // Belt hole
   translate(v=[-14,1,0]) cube(size = [10,46,22], center = true);
   // Motor mounting holes
   translate(v=[20,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
-  translate(v=[1,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 10, r=3.1, $fn=30);
+  #translate(v=[1,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=3.2, $fn=30);
  
 
   translate(v=[20,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
-  translate(v=[1,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 10, r=3.1, $fn=30);
+  #translate(v=[1,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=3.2, $fn=30);
 
 
   translate(v=[20,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
-  translate(v=[1,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 10, r=3.1, $fn=30);
+  #translate(v=[1,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=3.2, $fn=30);
 
 
   translate(v=[20,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
-  translate(v=[1,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 10, r=3.1, $fn=30);
+  #translate(v=[1,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=3.2, $fn=30);
 
   // Material saving cutout 
   translate(v=[-10,12,10]) cube(size = [60,42,42], center = true);
@@ -71,6 +95,10 @@ module x_end_motor_holes(){
   translate(v=[-10,40,-30]) rotate(a=[45,0,0])  cube(size = [60,42,42], center = true);
   // Motor shaft cutout
   translate(v=[0,0,0]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=17, $fn=6);
+
+   #translate([-5,-59,13]) difference() { cylinder(r=4,h=5);
+                                          translate([0,0,-1]) cylinder(r=2.5,h=7);
+                                        }
  }
 }
 

diff --git a/scad/y-belt-holder.scad b/scad/y-belt-holder.scad
index d17d7b4..d149cc4 100644 (file)
--- a/scad/y-belt-holder.scad
+++ b/scad/y-belt-holder.scad
@@ -4,7 +4,6 @@
 // Josef Průša <josefprusa@me.com>
 // Václav 'ax' Hůla <axtheb@gmail.com>
 // Alterations for reprap Wilson by Martin Rice <mrice411@gmail.com>
-// (this is exactly like the box-frame Y belt holder)
 
 include <configuration.scad>
 include <functions.scad>

diff --git a/scad/y-end-idler.scad b/scad/y-end-idler.scad
index 72efab7..656411a 100644 (file)
--- a/scad/y-end-idler.scad
+++ b/scad/y-end-idler.scad
@@ -12,8 +12,8 @@ tie_wrap_extra = 1;
 belt_h = 29;
 idler_w = 10; // the gap provided for the bearing holder
 idler_wall_t = 5;
-idler_bearing_inside_d = 3;
 end_w = 193.5;
+idler_wall_h = 32.6;
 
 yend_idler();
 
@@ -62,9 +62,17 @@ module idler_post()
                    translate([0,10,belt_h]) rotate([0,90,0]) cylinder(r=10,h=idler_wall_t);
              }
              translate([-idler_w,0,0]) cube(size=[idler_wall_t * 2 + idler_w,20,belt_h/2]);
+             
+             //translate([-idler_w,-1,idler_wall_h]) rotate([0,90,0]) cylinder(r=idler_bearing_inner_d/2,h=20,$fn=20);
+
          } 
          // holes for idler bolt
-         #translate([-12,10,belt_h]) rotate([0,90,0]) cylinder(r=idler_bearing_inside_d/2+.5,h=25);
+         #translate([-12,10,belt_h]) rotate([0,90,0]) {
+             cylinder(r=idler_bearing_inner_d/2+.5,h=25);
+             translate([0,0,1]) cylinder(r=idler_bearing_inner_d,h=3);
+             translate([0,0,idler_w+idler_wall_t*2]) cylinder(r=idler_bearing_inner_d,h=3,$fn=6);
+         }
+         
          
     }
 }

diff --git a/stl/frame-rearbrackets.stl b/stl/frame-rearbrackets.stl
dissimilarity index 92%
index 65c2e74..05fb28e 100644 (file)
Binary files a/stl/frame-rearbrackets.stl and b/stl/frame-rearbrackets.stl differ

diff --git a/stl/x-end-idler.stl b/stl/x-end-idler.stl
index ef0bc1e..20968cc 100644 (file)
--- a/stl/x-end-idler.stl
+++ b/stl/x-end-idler.stl
@@ -1,86 +1,72 @@
 solid OpenSCAD_Model
   facet normal -1 -0 0
     outer loop
-      vertex -23.5 25.6 29.25
+      vertex -23.5 19 29.25
       vertex -23.5 28.5 58
       vertex -23.5 28.5 0
     endloop
   endfacet
   facet normal -1 -0 0
     outer loop
-      vertex -23.5 11.5 16
-      vertex -23.5 18.4 29.25
+      vertex -23.5 -10.5 0
+      vertex -23.5 10.5 16
       vertex -23.5 28.5 0
     endloop
   endfacet
   facet normal -1 0 0
     outer loop
       vertex -23.5 10.5 16
-      vertex -23.5 -10.5 0
-      vertex -23.5 10.5 44
+      vertex -23.5 11.5 16
+      vertex -23.5 28.5 0
     endloop
   endfacet
   facet normal -1 0 0
     outer loop
-      vertex -23.5 18.4 29.25
-      vertex -23.5 20.2 26.1323
-      vertex -23.5 28.5 0
+      vertex -23.5 11.5 44
+      vertex -23.5 13 32.7141
+      vertex -23.5 11.5 30.116
     endloop
   endfacet
-  facet normal -1 -0 0
+  facet normal -1 0 0
     outer loop
-      vertex -23.5 20.2 32.3677
-      vertex -23.5 28.5 58
-      vertex -23.5 23.8 32.3677
+      vertex -23.5 17 25.7859
+      vertex -23.5 11.5 16
+      vertex -23.5 13 25.7859
     endloop
   endfacet
-  facet normal -1 0 0
+  facet normal -1 -0 0
     outer loop
-      vertex -23.5 20.2 26.1323
-      vertex -23.5 23.8 26.1323
-      vertex -23.5 28.5 0
+      vertex -23.5 17 32.7141
+      vertex -23.5 28.5 58
+      vertex -23.5 19 29.25
     endloop
   endfacet
   facet normal -1 -0 0
     outer loop
-      vertex -23.5 23.8 26.1323
-      vertex -23.5 25.6 29.25
+      vertex -23.5 11.5 16
+      vertex -23.5 17 25.7859
       vertex -23.5 28.5 0
     endloop
   endfacet
   facet normal -1 -0 0
     outer loop
-      vertex -23.5 11.5 44
-      vertex -23.5 28.5 58
-      vertex -23.5 18.4 29.25
+      vertex -23.5 17 25.7859
+      vertex -23.5 19 29.25
+      vertex -23.5 28.5 0
     endloop
   endfacet
   facet normal -1 0 0
     outer loop
-      vertex -23.5 18.4 29.25
+      vertex -23.5 13 32.7141
       vertex -23.5 28.5 58
-      vertex -23.5 20.2 32.3677
-    endloop
-  endfacet
-  facet normal -1 0 0
-    outer loop
-      vertex -23.5 11.5 44
-      vertex -23.5 18.4 29.25
-      vertex -23.5 11.5 16
-    endloop
-  endfacet
-  facet normal -1 -0 0
-    outer loop
-      vertex -23.5 -10.5 0
-      vertex -23.5 10.5 16
-      vertex -23.5 28.5 0
+      vertex -23.5 17 32.7141
     endloop
   endfacet
   facet normal -1 0 0
     outer loop
-      vertex -23.5 10.5 16
+      vertex -23.5 11.5 28.384
+      vertex -23.5 13 25.7859
       vertex -23.5 11.5 16
-      vertex -23.5 28.5 0
     endloop
   endfacet
   facet normal -1 0 0
@@ -104,11 +90,18 @@ solid OpenSCAD_Model
       vertex -23.5 -10.5 0
     endloop
   endfacet
+  facet normal -1 0 0
+    outer loop
+      vertex -23.5 10.5 16
+      vertex -23.5 -10.5 0
+      vertex -23.5 10.5 44
+    endloop
+  endfacet
   facet normal -1 -0 0
     outer loop
-      vertex -23.5 23.8 32.3677
+      vertex -23.5 11.5 44
       vertex -23.5 28.5 58
-      vertex -23.5 25.6 29.25
+      vertex -23.5 13 32.7141
     endloop
   endfacet
   facet normal 0 0 -1
@@ -2687,90 +2680,6 @@ solid OpenSCAD_Model
       vertex 5.87153 8.7049 58
     endloop
   endfacet
-  facet normal 0 0.866025 -0.5
-    outer loop
-      vertex -23.5 20.2 32.3677
-      vertex -21.5 20.2 32.3677
-      vertex -23.5 18.4 29.25
-    endloop
-  endfacet
-  facet normal 0 0.866025 -0.5
-    outer loop
-      vertex -23.5 18.4 29.25
-      vertex -21.5 20.2 32.3677
-      vertex -21.5 18.4 29.25
-    endloop
-  endfacet
-  facet normal -0 0.866025 0.5
-    outer loop
-      vertex -21.5 18.4 29.25
-      vertex -21.5 20.2 26.1323
-      vertex -23.5 18.4 29.25
-    endloop
-  endfacet
-  facet normal 0 0.866025 0.5
-    outer loop
-      vertex -23.5 18.4 29.25
-      vertex -21.5 20.2 26.1323
-      vertex -23.5 20.2 26.1323
-    endloop
-  endfacet
-  facet normal -0 -6.30033e-08 -1
-    outer loop
-      vertex -23.5 23.8 32.3677
-      vertex -21.5 23.8 32.3677
-      vertex -23.5 20.2 32.3677
-    endloop
-  endfacet
-  facet normal -0 -6.30033e-08 -1
-    outer loop
-      vertex -23.5 20.2 32.3677
-      vertex -21.5 23.8 32.3677
-      vertex -21.5 20.2 32.3677
-    endloop
-  endfacet
-  facet normal 0 -0.866025 -0.5
-    outer loop
-      vertex -23.5 23.8 32.3677
-      vertex -23.5 25.6 29.25
-      vertex -21.5 25.6 29.25
-    endloop
-  endfacet
-  facet normal 0 -0.866025 -0.5
-    outer loop
-      vertex -21.5 23.8 32.3677
-      vertex -23.5 23.8 32.3677
-      vertex -21.5 25.6 29.25
-    endloop
-  endfacet
-  facet normal 0 -0.866025 0.5
-    outer loop
-      vertex -23.5 23.8 26.1323
-      vertex -21.5 23.8 26.1323
-      vertex -21.5 25.6 29.25
-    endloop
-  endfacet
-  facet normal 0 -0.866025 0.5
-    outer loop
-      vertex -23.5 25.6 29.25
-      vertex -23.5 23.8 26.1323
-      vertex -21.5 25.6 29.25
-    endloop
-  endfacet
-  facet normal 0 6.30033e-08 1
-    outer loop
-      vertex -23.5 20.2 26.1323
-      vertex -21.5 20.2 26.1323
-      vertex -21.5 23.8 26.1323
-    endloop
-  endfacet
-  facet normal 0 6.30033e-08 1
-    outer loop
-      vertex -23.5 23.8 26.1323
-      vertex -23.5 20.2 26.1323
-      vertex -21.5 23.8 26.1323
-    endloop
-  endfacet
   facet normal 0 1 -0
     outer loop
       vertex -23.5 10.5 44
@@ -2939,13 +2848,6 @@ solid OpenSCAD_Model
       vertex -16.9289 -10.5 44
     endloop
   endfacet
-  facet normal 0 -1 0
-    outer loop
-      vertex -20 11.5 40.9289
-      vertex -23.5 11.5 44
-      vertex -23.5 11.5 16
-    endloop
-  endfacet
   facet normal -0 -1 0
     outer loop
       vertex -23.5 11.5 16
@@ -2967,6 +2869,125 @@ solid OpenSCAD_Model
       vertex -20 11.5 40.9289
     endloop
   endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex -20 11.5 40.9289
+      vertex -23.5 11.5 44
+      vertex -23.5 11.5 30.116
+    endloop
+  endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex -20 11.5 40.9289
+      vertex -23.5 11.5 30.116
+      vertex -22 11.5 30.116
+    endloop
+  endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex -20 11.5 40.9289
+      vertex -22 11.5 28.384
+      vertex -23.5 11.5 16
+    endloop
+  endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex -20 11.5 40.9289
+      vertex -22 11.5 30.116
+      vertex -22 11.5 28.384
+    endloop
+  endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex -22 11.5 28.384
+      vertex -23.5 11.5 28.384
+      vertex -23.5 11.5 16
+    endloop
+  endfacet
+  facet normal 0 0.866025 -0.5
+    outer loop
+      vertex -23.5 13 32.7141
+      vertex -22 13 32.7141
+      vertex -23.5 11.5 30.116
+    endloop
+  endfacet
+  facet normal 0 0.866025 -0.5
+    outer loop
+      vertex -23.5 11.5 30.116
+      vertex -22 13 32.7141
+      vertex -22 11.5 30.116
+    endloop
+  endfacet
+  facet normal 0 4.81078e-08 -1
+    outer loop
+      vertex -23.5 17 32.7141
+      vertex -22 17 32.7141
+      vertex -23.5 13 32.7141
+    endloop
+  endfacet
+  facet normal 0 4.81078e-08 -1
+    outer loop
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diff --git a/stl/y-belt-holder.stl b/stl/y-belt-holder.stl
index 0cc48dd..9b5064f 100644 (file)
--- a/stl/y-belt-holder.stl
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@@ -4453,30 +4453,30 @@ solid OpenSCAD_Model
   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex -10.5 4.5 30.5
-      vertex -10.5 4.5 30
       vertex -9 4.5 30
+      vertex -9 4.5 30.5
+      vertex -10.5 4.5 30.5
     endloop
   endfacet
-  facet normal 0 -1 0
+  facet normal -0 -1 -0
     outer loop
-      vertex -9 4.5 30.5
-      vertex -10.5 4.5 30.5
+      vertex -10.5 4.5 30
       vertex -9 4.5 30
+      vertex -10.5 4.5 30.5
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   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex -10.5 4.5 20
-      vertex -10.5 4.5 19.5
       vertex -9 4.5 19.5
+      vertex -9 4.5 20
+      vertex -10.5 4.5 20
     endloop
   endfacet
-  facet normal 0 -1 0
+  facet normal -0 -1 -0
     outer loop
-      vertex -9 4.5 20
-      vertex -10.5 4.5 20
+      vertex -10.5 4.5 19.5
       vertex -9 4.5 19.5
+      vertex -10.5 4.5 20
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   endfacet
   facet normal 0 -0 1
@@ -4523,16 +4523,16 @@ solid OpenSCAD_Model
   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex -10.5 4.5 18.5
-      vertex -10.5 4.5 17.5
       vertex -9 4.5 17.5
+      vertex -9 4.5 18.5
+      vertex -10.5 4.5 18.5
     endloop
   endfacet
-  facet normal 0 -1 0
+  facet normal -0 -1 -0
     outer loop
-      vertex -9 4.5 18.5
-      vertex -10.5 4.5 18.5
+      vertex -10.5 4.5 17.5
       vertex -9 4.5 17.5
+      vertex -10.5 4.5 18.5
     endloop
   endfacet
   facet normal 0 -0 1
@@ -4579,16 +4579,16 @@ solid OpenSCAD_Model
   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex -10.5 4.5 16.5
-      vertex -10.5 4.5 15.5
       vertex -9 4.5 15.5
+      vertex -9 4.5 16.5
+      vertex -10.5 4.5 16.5
     endloop
   endfacet
-  facet normal 0 -1 0
+  facet normal -0 -1 -0
     outer loop
-      vertex -9 4.5 16.5
-      vertex -10.5 4.5 16.5
+      vertex -10.5 4.5 15.5
       vertex -9 4.5 15.5
+      vertex -10.5 4.5 16.5
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   endfacet
   facet normal 0 -0 1
@@ -4635,16 +4635,16 @@ solid OpenSCAD_Model
   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex -10.5 4.5 14.5
-      vertex -10.5 4.5 13.5
       vertex -9 4.5 13.5
+      vertex -9 4.5 14.5
+      vertex -10.5 4.5 14.5
     endloop
   endfacet
-  facet normal 0 -1 0
+  facet normal -0 -1 -0
     outer loop
-      vertex -9 4.5 14.5
-      vertex -10.5 4.5 14.5
+      vertex -10.5 4.5 13.5
       vertex -9 4.5 13.5
+      vertex -10.5 4.5 14.5
     endloop
   endfacet
   facet normal 0 -0 1
@@ -4691,16 +4691,16 @@ solid OpenSCAD_Model
   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex -10.5 4.5 12.5
-      vertex -10.5 4.5 11.5
       vertex -9 4.5 11.5
+      vertex -9 4.5 12.5
+      vertex -10.5 4.5 12.5
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   endfacet
-  facet normal 0 -1 0
+  facet normal -0 -1 -0
     outer loop
-      vertex -9 4.5 12.5
-      vertex -10.5 4.5 12.5
+      vertex -10.5 4.5 11.5
       vertex -9 4.5 11.5
+      vertex -10.5 4.5 12.5
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   endfacet
   facet normal 0 -0 1
@@ -5209,156 +5209,156 @@ solid OpenSCAD_Model
   endfacet
   facet normal 0 1 0
     outer loop
-      vertex -9 -4.5 32.5
-      vertex -9 -4.5 31.5
-      vertex -10.5 -4.5 32.5
-    endloop
-  endfacet
-  facet normal 0 1 0
-    outer loop
+      vertex -9 -4.5 40
       vertex -9 -4.5 39.5
       vertex -11.3 -4.5 40
-      vertex -9 -4.5 40
     endloop
   endfacet
   facet normal 0 1 0
     outer loop
-      vertex -10.5 -4.5 39.5
       vertex -11.3 -4.5 40
       vertex -9 -4.5 39.5
+      vertex -10.5 -4.5 39.5
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   endfacet
   facet normal 0 1 0
     outer loop
-      vertex -10.5 -4.5 38.5
       vertex -11.3 -4.5 40
       vertex -10.5 -4.5 39.5
+      vertex -10.5 -4.5 38.5
     endloop
   endfacet
   facet normal 0 1 0
     outer loop
-      vertex -10.5 -4.5 37.5
-      vertex -11.3 -4.5 40
       vertex -10.5 -4.5 38.5
+      vertex -9 -4.5 38.5
+      vertex -9 -4.5 37.5
     endloop
   endfacet
-  facet normal 0 1 0
+  facet normal 0 1 -0
     outer loop
-      vertex -10.5 -4.5 37.5
       vertex -10.5 -4.5 38.5
       vertex -9 -4.5 37.5
+      vertex -10.5 -4.5 37.5
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   endfacet
-  facet normal 0 1 0
+  facet normal -0 1 0
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-      vertex -10.5 -4.5 36.5
+      vertex -10.5 -4.5 38.5
+      vertex -10.5 -4.5 37.5
       vertex -11.3 -4.5 40
+    endloop
+  endfacet
+  facet normal -0 1 0
+    outer loop
       vertex -10.5 -4.5 37.5
+      vertex -10.5 -4.5 36.5
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     endloop
   endfacet
   facet normal 0 1 0
     outer loop
-      vertex -11.3 -4.5 30
-      vertex -11.3 -4.5 40
       vertex -10.5 -4.5 36.5
+      vertex -9 -4.5 36.5
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+  facet normal 0 1 -0
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+  facet normal -0 1 0
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-      vertex -11.3 -4.5 30
       vertex -10.5 -4.5 36.5
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+  facet normal -0 1 0
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-      vertex -11.3 -4.5 30
       vertex -10.5 -4.5 35.5
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   facet normal 0 1 0
     outer loop
-      vertex -10.5 -4.5 31.5
-      vertex -10.5 -4.5 32.5
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+  facet normal 0 1 -0
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-      vertex -11.3 -4.5 30
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+  facet normal -0 1 0
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       vertex -10.5 -4.5 33.5
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+  facet normal -0 1 0
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-      vertex -9 -4.5 30.5
-      vertex -9 -4.5 30
-      vertex -10.5 -4.5 30.5
+      vertex -10.5 -4.5 33.5
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   facet normal 0 1 0
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-      vertex -10.5 -4.5 36.5
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+  facet normal -0 1 0
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+  facet normal -0 1 0
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     outer loop
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-      vertex -9 -4.5 33.5
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+  facet normal 0 1 -0
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-      vertex -9 -4.5 35.5
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   endfacet
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+  facet normal -0 1 0
     outer loop
-      vertex -9 -4.5 38.5
-      vertex -9 -4.5 37.5
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+      vertex -10.5 -4.5 30.5
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diff --git a/stl/y-end-idler.stl b/stl/y-end-idler.stl
index d584d56..3dd8e72 100644 (file)
--- a/stl/y-end-idler.stl
+++ b/stl/y-end-idler.stl
@@ -2897,13 +2897,6 @@ solid OpenSCAD_Model
       vertex 91.75 -2.12436 22
     endloop
   endfacet
-  facet normal 1 0 0
-    outer loop
-      vertex 91.75 11.5637 27.753
-      vertex 91.75 12.0791 19.2185
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-  endfacet
   facet normal 1 0 0
     outer loop
       vertex 91.75 -0.404028 19.6322
@@ -2939,46 +2932,32 @@ solid OpenSCAD_Model
       vertex 91.75 4.12215 20.9098
     endloop
   endfacet
-  facet normal 1 2.36027e-16 7.26417e-16
+  facet normal 1 1.21018e-14 -5.20721e-16
     outer loop
-      vertex 91.75 7.92088 19.2185
+      vertex 91.75 7.5 29
       vertex 91.75 7.92088 38.7815
       vertex 91.75 5.93263 19.8645
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   endfacet
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-    endloop
-  endfacet
   facet normal 1 0 0
     outer loop
-      vertex 91.75 8.05014 29.445
-      vertex 91.75 9.13223 30.8019
+      vertex 91.75 7.5 29
+      vertex 91.75 8.23223 30.7678
       vertex 91.75 7.92088 38.7815
     endloop
   endfacet
-  facet normal 1 1.53927e-14 4.88545e-15
-    outer loop
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-      vertex 91.75 11.5637 27.753
-      vertex 91.75 14.0674 19.8645
-    endloop
-  endfacet
-  facet normal 1 -7.59475e-16 1.31545e-15
+  facet normal 1 7.55323e-15 4.91022e-15
     outer loop
-      vertex 91.75 11.9499 29.445
-      vertex 91.75 14.0674 19.8645
+      vertex 91.75 12.5 29
+      vertex 91.75 11.7678 27.2322
       vertex 91.75 15.8779 20.9098
     endloop
   endfacet
-  facet normal 1 -5.11082e-16 5.67614e-16
+  facet normal 1 0 0
     outer loop
-      vertex 91.75 17.4314 22.3087
-      vertex 91.75 7.92088 38.7815
-      vertex 91.75 15.8779 20.9098
+      vertex 91.75 11.7678 27.2322
+      vertex 91.75 12.0791 19.2185
+      vertex 91.75 14.0674 19.8645
     endloop
   endfacet
   facet normal 1 -6.61624e-16 4.80698e-16
@@ -3065,52 +3044,73 @@ solid OpenSCAD_Model
       vertex 91.75 12.0791 38.7815
     endloop
   endfacet
-  facet normal 1 0 -0
+  facet normal 1 -0 0
     outer loop
-      vertex 91.75 11.5637 27.753
-      vertex 91.75 10 27
-      vertex 91.75 12.0791 19.2185
+      vertex 91.75 10 26.5
+      vertex 91.75 8.23223 27.2322
+      vertex 91.75 10 19
     endloop
   endfacet
-  facet normal 1 0 0
+  facet normal 1 -9.43714e-16 1.0481e-15
     outer loop
-      vertex 91.75 11.9499 29.445
+      vertex 91.75 17.4314 22.3087
+      vertex 91.75 11.7678 30.7678
+      vertex 91.75 15.8779 20.9098
+    endloop
+  endfacet
+  facet normal 1 -8.86513e-15 -4.2556e-15
+    outer loop
+      vertex 91.75 17.4314 22.3087
       vertex 91.75 7.92088 38.7815
-      vertex 91.75 10.8678 30.8019
+      vertex 91.75 11.7678 30.7678
     endloop
   endfacet
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+  facet normal 1 -5.30351e-13 -2.19679e-13
     outer loop
-      vertex 91.75 10 27
-      vertex 91.75 8.43634 27.753
-      vertex 91.75 10 19
+      vertex 91.75 11.7678 30.7678
+      vertex 91.75 12.5 29
+      vertex 91.75 15.8779 20.9098
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   endfacet
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+  facet normal 1 -0 0
     outer loop
       vertex 91.75 15.8779 20.9098
-      vertex 91.75 7.92088 38.7815
-      vertex 91.75 11.9499 29.445
+      vertex 91.75 11.7678 27.2322
+      vertex 91.75 14.0674 19.8645
+    endloop
+  endfacet
+  facet normal 1 0 -0
+    outer loop
+      vertex 91.75 11.7678 27.2322
+      vertex 91.75 10 26.5
+      vertex 91.75 12.0791 19.2185
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   endfacet
   facet normal 1 -0 0
     outer loop
       vertex 91.75 12.0791 19.2185
-      vertex 91.75 10 27
+      vertex 91.75 10 26.5
       vertex 91.75 10 19
     endloop
   endfacet
   facet normal 1 0 0
     outer loop
       vertex 91.75 10 19
-      vertex 91.75 8.43634 27.753
+      vertex 91.75 8.23223 27.2322
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     endloop
   endfacet
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+  facet normal 1 4.78747e-16 1.47343e-15
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+      vertex 91.75 7.92088 19.2185
+      vertex 91.75 7.5 29
+      vertex 91.75 5.93263 19.8645
+    endloop
+  endfacet
+  facet normal 1 -1.77433e-14 6.89365e-16
+    outer loop
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+      vertex 91.75 7.5 29
       vertex 91.75 7.92088 19.2185
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@@ -3123,8 +3123,15 @@ solid OpenSCAD_Model
   endfacet
   facet normal 1 0 0
     outer loop
-      vertex 91.75 9.13223 30.8019
-      vertex 91.75 10.8678 30.8019
+      vertex 91.75 8.23223 30.7678
+      vertex 91.75 10 31.5
+      vertex 91.75 7.92088 38.7815
+    endloop
+  endfacet
+  facet normal 1 0 0
+    outer loop
+      vertex 91.75 10 31.5
+      vertex 91.75 11.7678 30.7678
       vertex 91.75 7.92088 38.7815
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   endfacet
@@ -3219,34 +3226,41 @@ solid OpenSCAD_Model
       vertex 101.75 15.6943 16.2104
     endloop
   endfacet
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+  facet normal -1 3.33927e-16 -1.02772e-15
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+      vertex 101.75 12.5 29
       vertex 101.75 15.6943 16.2104
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     outer loop
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+      vertex 101.75 10 26.5
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+      vertex 101.75 8.23223 27.2322
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+      vertex 101.75 1.77101 17.6738
+    endloop
+  endfacet
   facet normal -1 -4.21055e-16 -4.67629e-16
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       vertex 101.75 12.0791 38.7815
@@ -3291,16 +3305,16 @@ solid OpenSCAD_Model
   endfacet
   facet normal -1 0 0
     outer loop
-      vertex 101.75 11.5637 27.753
-      vertex 101.75 10 15
-      vertex 101.75 10 27
+      vertex 101.75 10 26.5
+      vertex 101.75 7.08924 15.3059
+      vertex 101.75 8.23223 27.2322
     endloop
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+      vertex 101.75 8.23223 30.7678
       vertex 101.75 12.0791 38.7815
-      vertex 101.75 10.8678 30.8019
+      vertex 101.75 10 31.5
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   endfacet
   facet normal -1 0 0
@@ -3331,67 +3345,67 @@ solid OpenSCAD_Model
       vertex 101.75 10 39
     endloop
   endfacet
-  facet normal -1 0 0
+  facet normal -1 1.04338e-14 -3.71705e-15
     outer loop
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+      vertex 101.75 8.23223 27.2322
       vertex 101.75 4.30569 16.2104
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+      vertex 101.75 7.5 29
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+  facet normal -1 0 0
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+  facet normal -1 -1.57609e-14 -1.5105e-15
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       vertex 101.75 12.0791 38.7815
-      vertex 101.75 11.9499 29.445
+      vertex 101.75 15.6943 16.2104
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     endloop
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+  facet normal -1 -0 0
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+      vertex 101.75 11.7678 30.7678
       vertex 101.75 12.0791 38.7815
-      vertex 101.75 12.9108 15.3059
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+      vertex 101.75 12.5 29
     endloop
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   facet normal -1 -0 0
     outer loop
-      vertex 101.75 2.56855 35.6913
+      vertex 101.75 10 31.5
       vertex 101.75 12.0791 38.7815
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   endfacet
-  facet normal -1 0 0
+  facet normal -1 -0 0
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-      vertex 101.75 7.08924 15.3059
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     endloop
   endfacet
   facet normal 0 -0 1
@@ -6474,44 +6488,58 @@ solid OpenSCAD_Model
       vertex 86.75 19.9452 29
     endloop
   endfacet
-  facet normal -1 0 -3.19315e-14
+  facet normal -1 0 -1.00188e-14
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+      vertex 86.75 13.7401 30.4184
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diff --git a/stl/z-motors.stl b/stl/z-motors.stl
dissimilarity index 93%
index 8b90c06..770db48 100644 (file)
Binary files a/stl/z-motors.stl and b/stl/z-motors.stl differ