Added stepper motors and motor mounts

parts.scad

@@ -114,12 +114,48 @@ module ysled_slider(spread, associated_parts = false) {
   }
 }
 
+module nema17_housing() {
+  hwidth = corner_size + frame_size + wall_thickness;
+  hheight = nema17_face + wall_thickness * 2;
+  hdepth = frame_size + wall_thickness * 2;
+
+  screw_dxy = 31 / 2;
+  translate([0,
+	     -nema17_face/2 - frame_size/2 - wall_thickness,
+	     0])
+    render()
+  difference() {
+    cube([hwidth, hheight, hdepth],
+	 center=true);
+
+    translate([0,0,-2])
+      cube([nema17_face+1, nema17_face+1, hdepth],
+	   center=true);
+    cylinder(d=23, frame_size);
+
+    for (x = [-screw_dxy, screw_dxy],
+	   y = [-screw_dxy, screw_dxy])
+      translate([x, y, frame_size/2 + wall_thickness])
+      rotate([180, 0, 0]){
+	cylinder(d=5,h=3);
+      }
+	
+  }
+}
+
 module flcorner() {
-  translate([0, 0, 0])
   rotate([0, 0, 0]) {
     corner_base();
     rail_holder(false);
   }
+  translate([(corner_size-wall_thickness)/2, 0, 0])
+    nema17_housing();
+  translate([(corner_size - wall_thickness) / 2,
+	     -nema17_face/2 - frame_size/2 - wall_thickness,
+	     frame_size/2]) {
+    nema17();
+  }
+    
 }
 
 module frcorner() {
@@ -127,6 +163,13 @@ module frcorner() {
     corner_base();
     rail_holder(true);
   }
+  translate([-(corner_size-wall_thickness)/2, 0, 0])
+    nema17_housing();
+  translate([-(corner_size - wall_thickness) / 2,
+	     -nema17_face/2 - frame_size/2 - wall_thickness,
+	     frame_size/2]) {
+    nema17();
+  }
 }
 
 module blcorner() {
@@ -169,7 +212,7 @@ module xsled_slider() {
     
   }
   rotate([0, 90, 0])
-    *bushing();
+    bushing();
 }
 
 module sled_cornera() {
@@ -211,5 +254,16 @@ module xsled_frame() {
   translate([-sled_xsize / 2, sled_ysize / 2, 0])
     rotate([0,0,270])
     sled_cornerb();
-  
+
+
+  // simulate a piece of film
+  if (false) {
+    color("#0008")
+      cube([
+	     5*inch,
+	     4*inch,
+	     1
+	     ],
+	   center=true);
+  }
 }