implement all border cases

1 files changed, 30 insertions, 16 deletions

diff --git a/connector_front.scad b/connector_front.scad
index c3382cc..5ec5d41 100644
--- a/connector_front.scad
+++ b/connector_front.scad
@@ -3,29 +3,42 @@ include <parameters.scad>
 use <nipple.scad>
 use <rail.scad>
 
-module half() difference() {
+module front_connector_half(
+  border_side = false,
+  border_top = false,
+  border_bottom = false
+) difference() {
   union() {	 
-    // upper horizontal bar
-    translate([0, 0, tray_height - bar_thickness])
-      cube([tray_width / 2, bar_thickness, bar_thickness]);
-
     // vertical bar
     cube([bar_thickness/2, bar_thickness, tray_height]);
 
-    // lower horizontal bar
-    cube([bar_thickness/2 + rail_width + pla_epsilon, bar_thickness, bar_thickness]);
+    if (!border_side) {
+      // upper horizontal bar
+      translate([0, 0, tray_height - bar_thickness])
+        cube([tray_width / 2, bar_thickness, bar_thickness]);
+
+      // lower horizontal bar
+      cube([bar_thickness/2 + rail_width + pla_epsilon, bar_thickness, bar_thickness]);
 
-    // vertical thread bold receiver
-    translate([0,                            bar_thickness, tray_height-bar_thickness]) cube([bar_thickness/2, bar_thickness, bar_thickness]);
-    translate([tray_width/2 - bar_thickness, bar_thickness, tray_height-bar_thickness]) cube([bar_thickness, bar_thickness, bar_thickness]);
+      // vertical thread bold receiver (extremal)
+      translate([tray_width/2 - bar_thickness, bar_thickness, tray_height-bar_thickness])
+        cube([bar_thickness, bar_thickness, bar_thickness]);
+    }
+
+    // vertical thread bold receiver (central)
+    translate([0, bar_thickness, tray_height-bar_thickness])
+      cube([bar_thickness/2, bar_thickness, bar_thickness]);
+  }
 
+  if (!border_bottom) {
     // male downward positioning nippel
     translate([rail_width, bar_thickness / 2, 0]) nipple();
   }
 
   // receiver for rail
-  translate([bar_thickness/2 - rail_thickness, 0, bar_thickness - rail_thickness])
-    rail();
+  if (!border_side)
+    translate([bar_thickness/2 - rail_thickness, 0, bar_thickness - rail_thickness])
+      rail();
 
   // holes for thread rods (horizontal, vertical)
   translate([0, bar_thickness / 2, 0])
@@ -38,7 +51,8 @@ module half() difference() {
     cylinder(h=nut_height, r=nut_diameter/2 + pla_epsilon, $fs=0.1);
 
   // female downward positioning nippel
-  translate([rail_width, bar_thickness / 2, tray_height]) nipple(pla_epsilon);
+  if (!border_top)
+    translate([rail_width, bar_thickness / 2, tray_height]) nipple(pla_epsilon);
 }
 
 
@@ -50,8 +64,8 @@ module front_connector(
 ) {
   difference() {
     union() {
-      half(border_right);
-      mirror() half(border_left);
+      mirror() front_connector_half(border_left,  border_top, border_bottom);
+               front_connector_half(border_right, border_top, border_bottom);
     }
 
     // female leftward positioning nippel
@@ -64,4 +78,4 @@ module front_connector(
     translate([tray_width / 2, bar_thickness / 2, tray_height - bar_thickness / 2]) rotate([0, 270, 0]) nipple();
 }
 
-front_connector(border_right=true);
\ No newline at end of file
+front_connector();