add nut hole on bottom

Otherwise the structure would stand on a single nut.

1 files changed, 4 insertions, 0 deletions

diff --git a/connector_front.scad b/connector_front.scad
index 413f90b..56c7431 100644
--- a/connector_front.scad
+++ b/connector_front.scad
@@ -33,6 +33,10 @@ module half() difference() {
   translate([0, bar_thickness * 1.5, tray_height - bar_thickness / 2]) rotate([0, 90, 0])
     cylinder(h = tray_width / 2, r = (rod_diameter + pla_epsilon) / 2, $fs=0.1);
 
+  // hole for nut on the bottom of the vertical rod
+  translate([0, bar_thickness / 2, 0])
+    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);
 }