Added first steps towards new xsled

assembly.scad

@@ -86,8 +86,10 @@ module moving_parts(xpos = cur_xpos, ypos = cur_ypos) {
     ysled_rails();
     
   }
-  translate([cur_xpos, cur_ypos, 0])
-    xsled();    
+  translate([cur_xpos, cur_ypos, 0]) {
+   // xsled();
+    xsled2();
+  }
 }
 
 union() {

parts.scad

@@ -267,3 +267,20 @@ module xsled_frame() {
 	   center=true);
   }
 }
+
+module xsled2() {
+  for (xsign = [1,-1],
+	 ysign = [1,-1]) {
+    translate([sled_xsize / 2 * xsign,
+	       sled_ysize / 2 * ysign,
+		0])
+    rotate([0, -90 * xsign, 0]) {
+      difference() {
+	cylinder(d = bushing_od + wall_thickness, h = bushing_len + wall_thickness);
+	cylinder(d = rail_diam + 1 , h = (bushing_len + wall_thickness + 1) * 2,
+		 center = true);
+      }
+      bushing();
+    }
+  }
+}