Update BOM and rendered image.

README.md

@@ -34,17 +34,20 @@ Actual price of a full build may be higher.
 
 |                Part                 | Qty | Cost (USD) |
 |-------------------------------------|-----|------------|
+| M4 hex bolt 40mm                    | 4   | 5.0        |
 | M3 sliding t slot nut               | 25  | 1.5        |
 | M3 hex cap bolt 8mm                 | 25  | 2.25       |
-| M3 hex cap bolt 6mm                 | 4   | 0.28       |
+| M3 hex cap bolt 6mm                 | 8   | 0.56       |
 | L298N Motor driver module           | 1   | 2.89       |
+| ESP32 GPIO breakout board           | 1   | 5.99       |
 | ESP32 Dev board                     | 1   | 6.66       |
 | 250RPM DC geared motor              | 2   | 29.98      |
 | 2020 Aluminum extrusion 420mm       | 2   | 5.22       |
 | 2020 Aluminum extrusion 260mm       | 4   | 6.44       |
 | 100RPM DC geared motor with encoder | 1   | 17.02      |
 |---------|---------------|------------------------------------|
-| TOTAL   | 65            | 72.24                              |
+| TOTAL   | 74            | 83.51                              |
+
 
 <!-- /bom -->
 

hardware/contact_printer_BOM.csv

@@ -1,6 +1,8 @@
 module,quantity,part,part_id,description
 contact_printer,4,2020 Aluminum extrusion 260mm,N/A,Sides and central frame
 contact_printer,2,2020 Aluminum extrusion 420mm,N/A,Top and bottom frame
+electronics_panel,4,M3 hex cap bolt 6mm,N/A,Attach the GPIO breakout board to the panel
+electronics_panel,1,ESP32 GPIO breakout board,N/A,To make the ESP32 dev board easier to wire
 electronics_panel,6,M3 sliding t slot nut,N/A,Attach the frame to the electronics_panel
 electronics_panel,6,M3 hex cap bolt 8mm,N/A,Attach the electronics_panel to the frame
 electronics_panel,1,L298N Motor driver module,N/A,Control the 3 motors using 2 channels
@@ -11,6 +13,7 @@ takeup_panel_stock,1,250RPM DC geared motor,JSX40-370,Drive the takeup of the st
 takeup_panel_picture,7,M3 sliding t slot nut,N/A,Attach the frame to the takeup_panel_picture
 takeup_panel_picture,7,M3 hex cap bolt 8mm,N/A,Attach the takeup_panel_picture to the frame
 takeup_panel_picture,1,250RPM DC geared motor,JSX40-370,Drive the takeup of the picture pathway
+panel,4,M4 hex bolt 40mm,N/A,Attach the lamp to the panel
 panel,1,100RPM DC geared motor with encoder,N/A,Drive the sprocketed_roller
 panel,6,M3 sliding t slot nut,N/A,Attach aluminum extrusions to panel
 panel,6,M3 hex cap bolt 8mm,N/A,Attach panel to aluminum extrusions

hardware/contact_printer_BOM_total.csv

@@ -1,11 +1,13 @@
 quantity,part,part_id,price
+4,"M4 hex bolt 40mm",N/A,500
 25,"M3 sliding t slot nut",N/A,150
 25,"M3 hex cap bolt 8mm",N/A,225
-4,"M3 hex cap bolt 6mm",N/A,28
+8,"M3 hex cap bolt 6mm",N/A,56
 1,"L298N Motor driver module",N/A,289
+1,"ESP32 GPIO breakout board",N/A,599
 1,"ESP32 Dev board",N/A,666
 2,"250RPM DC geared motor",JSX40-370,2998
 2,"2020 Aluminum extrusion 420mm",N/A,522
 4,"2020 Aluminum extrusion 260mm",N/A,644
 1,"100RPM DC geared motor with encoder",N/A,1702
-65,N/A,TOTAL,7224
+74,N/A,TOTAL,8351

hardware/prices.csv

@@ -9,3 +9,5 @@ M3 sliding t slot nut,N/A,6,https://amzn.to/48GRrSU
 250RPM DC geared motor,JSX40-370,1499,https://amzn.to/3NWkcRL
 ESP32 Dev board,N/A,666,https://amzn.to/3NXCvGj
 L298N Motor driver module,N/A,289,https://amzn.to/4ellssy
+ESP32 GPIO breakout board,N/A,599,https://amzn.to/3UFjpbO
+M4 hex bolt 40mm,N/A,125,https://www.homedepot.com/p/M4-0-7-x-40-mm-Class-8-8-Zinc-Plated-Hex-Bolt-801298/204273654

scad/contact_printer.scad

@@ -450,12 +450,20 @@ module gate_blank () {
         //roller shelf
         translate([0, (-42.39 / 2) + RollerVoidY, (Z / 2) - (RollerShelfZ / 2) + 0.01]) cylinder(r = R(RollerShelfD), h = RollerShelfZ, center = true, $fn = 240);
         //picture channel
+        difference () {
             translate([0, (-42.39 / 2) + RollerVoidY, PictureShelfOffsetZ ]) cylinder(r = R(PictureShelfD), h = PictureShelfZ, center = true, $fn = 240);
+            //ramp to slit
+            difference () {
+                translate([0, -1, 0]) rotate([0, 0, 45]) cube([4, 4, 200 + 1], center = true);
+                translate([0, (-42.39 / 2) + RollerVoidY - 1, PictureShelfOffsetZ ]) cylinder(r = R(PictureShelfD), h = PictureShelfZ, center = true, $fn = 240);
+            }
+        }
 
         //gate notches
         translate([(X / 2) + SidesX, SidesY, 0]) rotate([0, 0, 45]) cube([5, 5, Z + 1], center = true);
         translate([(-X / 2) - SidesX, SidesY, 0]) rotate([0, 0, 45]) cube([5, 5, Z + 1], center = true);
     }
+
 }
 
 module gate_carrier (pos = [0, 0, 0], rot = [0, 0, 0]) {
@@ -684,6 +692,7 @@ module panel_bearing_void (pos = [0, 0, 0]) {
 //BOM: 6, M3 hex cap bolt 8mm,N/A,Attach panel to aluminum extrusions
 //BOM: 6, M3 sliding t slot nut,N/A,Attach aluminum extrusions to panel
 //BOM: 1, 100RPM DC geared motor with encoder,N/A,Drive the sprocketed_roller
+//BOM: 4, M4 hex bolt 40mm, N/A, Attach the lamp to the panel
 module panel (pos = [0, 0, 0]) {
     BoltX = (PanelX-20)/2;
     BoltY2 = (PanelY)/2;
@@ -1387,6 +1396,8 @@ module button_void (pos = [0, 0, 0], rot = [0, 0, 0]) {
 //BOM: 1, L298N Motor driver module, N/A, Control the 3 motors using 2 channels
 //BOM: 6, M3 hex cap bolt 8mm, N/A, Attach the electronics_panel to the frame
 //BOM: 6, M3 sliding t slot nut, N/A, Attach the frame to the electronics_panel
+//BOM: 1, ESP32 GPIO breakout board, N/A, To make the ESP32 dev board easier to wire
+//BOM: 4, M3 hex cap bolt 6mm, N/A, Attach the GPIO breakout board to the panel
 module electronics_panel (pos = [0, 0, 0], rot = [0, 0, 0]) {
     X = PanelX - 40;
     Y = 100;
@@ -1463,10 +1474,10 @@ module debug () {
         //translate([-5.35, LampY -7.1, 11 + 1 + .1]) rotate([0, 0, 7]) color("blue") picture_gate();
         
         //idle rollers
-        /*idle_roller([ IdleRollerPrintX, IdleRollerPrintY, 3]);
+        idle_roller([ IdleRollerPrintX, IdleRollerPrintY - 10, 3]);
-        idle_roller([-IdleRollerPrintX, IdleRollerPrintY, 3]);
+        idle_roller([-IdleRollerPrintX, IdleRollerPrintY - 10, 3]);
-        idle_roller([ IdleRollerStockX, IdleRollerStockY, 3]);
+        idle_roller([ IdleRollerStockX, IdleRollerStockY - 10, 3]);
-        idle_roller([-IdleRollerStockX, IdleRollerStockY, 3]);*/
+        idle_roller([-IdleRollerStockX, IdleRollerStockY - 10, 3]);
 
         //idle roller path
        // translate([0, IdleRollerPrintY - 8, 10]) cube([200, .1, 16], center = true);
@@ -1571,9 +1582,9 @@ module debug () {
 }
 
 module debug_lamp () {
-    //color("red") translate([0, -8.5, 10.6]) rotate([0, 90, 90]) 16mm_film(40, true, true);
+    color("blue") translate([0, -8.5, 10.6]) rotate([0, 90, 90]) 16mm_film(40, true, true);
-    color("red") lamp_bolts_voids([0, LampY + 5, (LampBoltH/2) - 1.5 - 2.5]);
+    color("red") lamp_bolts_voids([0, LampY + 5, (LampBoltH/2) - 1.5 - 2.5], H = 40);
-    //color("red") lamp_rails_voids([0, 20, 11 + LampRailsOffsetZ], [90, 0, 0], h = 50);
+    color("red") lamp_rails_voids([0, 20, 11 + LampRailsOffsetZ], [90, 0, 0], h = 50);
     panel([0, -10, -1.5]);
     //
     lamp_single([0, 10, 2]);

scripts/img.sh

@@ -7,5 +7,5 @@ IMG=img/contact_printer.png
 
 # setting PART equal to a non-existent module will render the debug layout
 
-openscad -o ${IMG} --colorscheme ${SCHEME} --imgsize ${WIDTH},${HEIGHT} -D "PART=\"DEBUGxxxxxxx\"" scad/contact_printer.scad
+openscad -o ${IMG} --enable manifold --colorscheme ${SCHEME} --imgsize ${WIDTH},${HEIGHT} -D "PART=\"DEBUGxxxxxxx\"" scad/contact_printer.scad
 convert ${IMG} -resize 1200x1000 -gravity center -extent 1000x700 ${IMG}

stl/contact_printer_daylight_spool_insert_reinforced.stl

@@ -2484,62 +2484,6 @@ solid OpenSCAD_Model
       vertex -2.556138 8.629377 2.5
     endloop
   endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -0.42621896 2.0052025 25.15
-      vertex 2.869873 3.9 25.15
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -0.63348484 1.9496659 25.15
-      vertex -0.42621896 2.0052025 25.15
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -0.8338101 1.8727682 25.15
-      vertex -0.63348484 1.9496659 25.15
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -1.025 1.7753521 25.15
-      vertex -0.8338101 1.8727682 25.15
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -1.2049598 1.6584848 25.15
-      vertex -1.025 1.7753521 25.15
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -1.3717177 1.5234469 25.15
-      vertex -1.2049598 1.6584848 25.15
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex -1.5234469 1.3717177 25.15
-      vertex -1.3717177 1.5234469 25.15
-    endloop
-  endfacet
-  facet normal 0 1 0
-    outer loop
-      vertex -2.8698728 3.9 25.15
-      vertex 2.869873 3.9 25.15
-      vertex 3.9 3.9 22.431538
-    endloop
-  endfacet
   facet normal 0 0 1
     outer loop
       vertex -2.869873 -3.9 25.15
@@ -2669,10 +2613,66 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex -2.869873 -3.9 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 0.42621896 -2.0052025 25.15
     endloop
   endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -0.42621896 2.0052025 25.15
+      vertex 2.869873 3.9 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -0.63348484 1.9496659 25.15
+      vertex -0.42621896 2.0052025 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -0.8338101 1.8727682 25.15
+      vertex -0.63348484 1.9496659 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -1.025 1.7753521 25.15
+      vertex -0.8338101 1.8727682 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -1.2049598 1.6584848 25.15
+      vertex -1.025 1.7753521 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -1.3717177 1.5234469 25.15
+      vertex -1.2049598 1.6584848 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex -1.5234469 1.3717177 25.15
+      vertex -1.3717177 1.5234469 25.15
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex -2.869873 3.9 25.15
+      vertex 2.869873 3.9 25.15
+      vertex 3.9 3.9 22.431538
+    endloop
+  endfacet
   facet normal -0.32143897 -0.9469303 0
     outer loop
       vertex -3.0042617 -8.483773 2.5
@@ -2879,7 +2879,7 @@ solid OpenSCAD_Model
   facet normal 0 -1 0
     outer loop
       vertex -3.9 -3.9 22.431538
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex -2.869873 -3.9 25.15
     endloop
   endfacet
@@ -2887,7 +2887,7 @@ solid OpenSCAD_Model
     outer loop
       vertex -3.9 -3.9 22.431538
       vertex 3.9 -3.9 4
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
     endloop
   endfacet
   facet normal 0 0 1
@@ -2922,7 +2922,7 @@ solid OpenSCAD_Model
     outer loop
       vertex -3.9 2.869873 25.15
       vertex -1.5234469 1.3717177 25.15
-      vertex -2.8698728 3.9 25.15
+      vertex -2.869873 3.9 25.15
     endloop
   endfacet
   facet normal 0 0 1
@@ -2967,13 +2967,6 @@ solid OpenSCAD_Model
       vertex -2.0052025 0.42621896 25.15
     endloop
   endfacet
-  facet normal -0.6830126 0.6830128 0.2588191
-    outer loop
-      vertex -3.9 2.869873 25.15
-      vertex -2.8698728 3.9 25.15
-      vertex -3.9 3.9 22.431538
-    endloop
-  endfacet
   facet normal 0 0 1
     outer loop
       vertex -3.9 2.869873 25.15
@@ -2981,6 +2974,13 @@ solid OpenSCAD_Model
       vertex -2.03877 0.21428335 25.15
     endloop
   endfacet
+  facet normal -0.68301266 0.68301266 0.25881907
+    outer loop
+      vertex -3.9 2.869873 25.15
+      vertex -2.869873 3.9 25.15
+      vertex -3.9 3.9 22.431538
+    endloop
+  endfacet
   facet normal 0 0 1
     outer loop
       vertex -3.9 3.9 4
@@ -3068,7 +3068,7 @@ solid OpenSCAD_Model
   facet normal 0 1 0
     outer loop
       vertex -3.9 3.9 4
-      vertex -2.8698728 3.9 25.15
+      vertex -2.869873 3.9 25.15
       vertex 3.9 3.9 22.431538
     endloop
   endfacet
@@ -3104,7 +3104,7 @@ solid OpenSCAD_Model
     outer loop
       vertex -3.9 3.9 4
       vertex -3.9 3.9 22.431538
-      vertex -2.8698728 3.9 25.15
+      vertex -2.869873 3.9 25.15
     endloop
   endfacet
   facet normal 0 0 1
@@ -7422,7 +7422,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 0.42621896 -2.0052025 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 0.63348484 -1.9496659 25.15
     endloop
   endfacet
@@ -7520,7 +7520,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 0.63348484 -1.9496659 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 0.8338101 -1.8727682 25.15
     endloop
   endfacet
@@ -7618,7 +7618,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 0.8338101 -1.8727682 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 1.025 -1.7753521 25.15
     endloop
   endfacet
@@ -7716,7 +7716,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 1.025 -1.7753521 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 1.2049598 -1.6584848 25.15
     endloop
   endfacet
@@ -7821,7 +7821,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 1.2049598 -1.6584848 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 1.3717177 -1.5234469 25.15
     endloop
   endfacet
@@ -7877,7 +7877,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 1.3717177 -1.5234469 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 1.5234469 -1.3717177 25.15
     endloop
   endfacet
@@ -7982,7 +7982,7 @@ solid OpenSCAD_Model
   facet normal 0 0 1
     outer loop
       vertex 1.5234469 -1.3717177 25.15
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 3.9 -2.869873 25.15
     endloop
   endfacet
@@ -9386,34 +9386,41 @@ solid OpenSCAD_Model
       vertex 3.0042617 8.483773 2.5
     endloop
   endfacet
-  facet normal 0 0 1
+  facet normal 0.6830126 -0.6830128 0.2588191
     outer loop
-      vertex 2.869873 3.9 25.15
+      vertex 2.8698728 -3.9 25.15
-      vertex 3.9 -2.869873 25.15
-      vertex 3.9 2.869873 25.15
-    endloop
-  endfacet
-  facet normal 0.68301266 0.68301266 0.25881907
-    outer loop
-      vertex 2.869873 3.9 25.15
-      vertex 3.9 2.869873 25.15
-      vertex 3.9 3.9 22.431538
-    endloop
-  endfacet
-  facet normal 0.6830128 -0.6830126 0.25881907
-    outer loop
-      vertex 2.8698733 -3.9 25.15
       vertex 3.9 -3.9 22.431538
       vertex 3.9 -2.869873 25.15
     endloop
   endfacet
   facet normal 0 -1 0
     outer loop
-      vertex 2.8698733 -3.9 25.15
+      vertex 2.8698728 -3.9 25.15
       vertex 3.9 -3.9 4
       vertex 3.9 -3.9 22.431538
     endloop
   endfacet
+  facet normal 0.6830127 0.6830127 0.25881904
+    outer loop
+      vertex 2.869873 3.9 25.15
+      vertex 3.0942178 3.6756554 25.15
+      vertex 3.9 3.1965487 24.287916
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 2.869873 3.9 25.15
+      vertex 3.9 -2.869873 25.15
+      vertex 3.0942178 3.6756554 25.15
+    endloop
+  endfacet
+  facet normal 0.6830127 0.68301266 0.2588191
+    outer loop
+      vertex 2.869873 3.9 25.15
+      vertex 3.9 3.1965487 24.287916
+      vertex 3.9 3.9 22.431538
+    endloop
+  endfacet
   facet normal 0.34611732 -0.93819124 0
     outer loop
       vertex 3.0042617 -8.483773 2.5
@@ -9463,6 +9470,41 @@ solid OpenSCAD_Model
       vertex 3.2253115 8.402224 2.5
     endloop
   endfacet
+  facet normal 0.6830127 0.6830127 0.25881904
+    outer loop
+      vertex 3.0942178 3.6756554 25.15
+      vertex 3.1481009 3.6217723 25.15
+      vertex 3.9 3.1965487 24.287916
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 3.0942178 3.6756554 25.15
+      vertex 3.9 -2.869873 25.15
+      vertex 3.1481009 3.6217723 25.15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 3.1481009 3.6217723 25.15
+      vertex 3.9 -2.869873 25.15
+      vertex 3.9 2.869873 25.15
+    endloop
+  endfacet
+  facet normal 0.6830128 0.6830128 0.25881872
+    outer loop
+      vertex 3.1481009 3.6217723 25.15
+      vertex 3.9 2.869873 25.15
+      vertex 3.9 3.179061 24.334064
+    endloop
+  endfacet
+  facet normal 0.6830156 0.683008 0.2588239
+    outer loop
+      vertex 3.1481009 3.6217723 25.15
+      vertex 3.9 3.179061 24.334064
+      vertex 3.9 3.1965487 24.287916
+    endloop
+  endfacet
   facet normal 0.37055692 -0.92880976 0
     outer loop
       vertex 3.2253115 -8.402224 2.5
@@ -9675,16 +9717,30 @@ solid OpenSCAD_Model
   endfacet
   facet normal 1 0 0
     outer loop
-      vertex 3.9 -3.9 22.431538
+      vertex 3.9 -2.869873 25.15
+      vertex 3.9 3.179061 24.334064
       vertex 3.9 2.869873 25.15
+    endloop
+  endfacet
+  facet normal 1 0 0
+    outer loop
+      vertex 3.9 -3.9 22.431538
+      vertex 3.9 3.179061 24.334064
       vertex 3.9 -2.869873 25.15
     endloop
   endfacet
+  facet normal 1 0 0
+    outer loop
+      vertex 3.9 -3.9 22.431538
+      vertex 3.9 3.1965487 24.287916
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+  endfacet
   facet normal 1 0 0
     outer loop
       vertex 3.9 -3.9 22.431538
       vertex 3.9 3.9 22.431538
-      vertex 3.9 2.869873 25.15
+      vertex 3.9 3.1965487 24.287916
     endloop
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   facet normal 1 0 0

stl/contact_printer_daylight_spool_insert_reinforced_nut.stl

@@ -10,14 +10,14 @@ solid OpenSCAD_Model
     outer loop
       vertex -0.1854102 -15.4706335 -3
       vertex 0 -15.5 -3
-      vertex -0.1854102 -15.4706335 2.526939
+      vertex 0 -15.5 2.5
     endloop
   endfacet
   facet normal -0.15643656 -0.987688 0
     outer loop
-      vertex -0.1854102 -15.4706335 2.526939
+      vertex -0.1854102 -15.4706335 -3
-      vertex 0 -15.5 -3
       vertex 0 -15.5 2.5
+      vertex -0.1854102 -15.4706335 2.526939
     endloop
   endfacet
   facet normal -0.009257761 -0.7070765 0.7070765
@@ -20716,12 +20716,12 @@ solid OpenSCAD_Model
     outer loop
       vertex 0 15.5 -3
       vertex 0 15.5 2.5
-      vertex 0.1854102 15.4706335 2.526939
+      vertex 0.1854102 15.4706335 -3
     endloop
   endfacet
   facet normal 0.15643656 0.987688 0
     outer loop
-      vertex 0 15.5 -3
+      vertex 0 15.5 2.5
       vertex 0.1854102 15.4706335 2.526939
       vertex 0.1854102 15.4706335 -3
     endloop

stl/contact_printer_sprocketed_roller_solid.stl

@@ -29193,27 +29193,27 @@ solid OpenSCAD_Model
     outer loop
       vertex 0 -18.89625 -11.95
       vertex 1.1865053 -18.858963 -11.95
-      vertex 0 -18.89625 -3.85
+      vertex 1.1865053 -18.858963 -3.85
     endloop
   endfacet
   facet normal 0.03141019 -0.9995066 0
     outer loop
-      vertex 0 -18.89625 -3.85
+      vertex 0 -18.89625 -11.95
-      vertex 1.1865053 -18.858963 -11.95
       vertex 1.1865053 -18.858963 -3.85
-    endloop
-  endfacet
-  facet normal 0 0 -1
-    outer loop
       vertex 0 -18.89625 -3.85
-      vertex 1.1865053 -18.858963 -3.85
-      vertex 1.1883106 -18.887655 -3.85
     endloop
   endfacet
   facet normal 0 0 -1
     outer loop
       vertex 0 -18.925 -3.85
       vertex 0 -18.89625 -3.85
+      vertex 1.1865053 -18.858963 -3.85
+    endloop
+  endfacet
+  facet normal 0 0 -1
+    outer loop
+      vertex 0 -18.925 -3.85
+      vertex 1.1865053 -18.858963 -3.85
       vertex 1.1883106 -18.887655 -3.85
     endloop
   endfacet