make sure corner rounding radius is big enough

diff --git a/3030-dampener-feet.scad b/3030-dampener-feet.scad
index 0a578f0ce127badf2925def36f619c122d73e669..89070c22d22930b1ac2029983cd2ec26aeb83d1b 100644 (file)
--- a/3030-dampener-feet.scad
+++ b/3030-dampener-feet.scad
@@ -12,6 +12,16 @@ foot_height = 18;
 foot_length = 20;
 wall_width = 2;
 nub_depth = 4;
+desired_corner_rounding_radius = 2/2.1;
+
+// rounding radius needs to be just under half the size of the wall_width
+maximum_corner_rounding_radius = wall_width / 2 - 0.1;
+corner_rounding_radius =
+  (desired_corner_rounding_radius < maximum_corner_rounding_radius)
+  ?
+  desired_corner_rounding_radius
+  :
+  maximum_corner_rounding_radius;
 
 fudge = 0.1;
 //fudge = 0.0;
@@ -65,7 +75,7 @@ module half_foot_2d() {
     square([nub_depth, side_nub_length - fudge]); } }
 
 module foot_2d() {
-  round_corners(wall_width / 2.1) {
+  round_corners(corner_rounding_radius) {
     translate([-x / 2, 0, 0]) {
       half_foot_2d(); }
     translate([x / 2, 0, 0]) {