add nut hole on bottom

Otherwise the structure would stand on a single nut.

1 files changed, 3 insertions, 1 deletions

diff --git a/parameters.scad b/parameters.scad
index f95d757..cd4f964 100644
--- a/parameters.scad
+++ b/parameters.scad
@@ -4,8 +4,10 @@ cooling_height = 10;
 // thickness of the support bar
 bar_thickness = 10;
 
-// diameter of thread rod used for support
+// outer diameter of thread rod and nut used for support
 rod_diameter = 4;
+nut_diameter = 6;
+nut_height = 3;
 
 // dimensions of HDDs; not model-specific; current values are fake
 hdd_width = 80;