diff --git a/gridfinity-rebuilt-utility.scad b/gridfinity-rebuilt-utility.scad
index 545c672..cb9cbf9 100644
--- a/gridfinity-rebuilt-utility.scad
+++ b/gridfinity-rebuilt-utility.scad
@@ -228,7 +228,7 @@ module block_base_solid(dbnx, dbny, l, o) {
     mirror([0,0,1])
     union() {
         hull() {
-            rounded_rectangle(xx-2*r_c2-2*r_c1+o, yy-2*r_c2-2*r_c1+o, h_base+oo, r_fo3/2);
+            rounded_rectangle(xx-2*r_c2-2*r_c1+o, yy-2*r_c2-2*r_c1+o, h_base+oo, r_fo3);
             rounded_rectangle(xx-2*r_c2+o, yy-2*r_c2+o, h_base-r_c1+oo, r_fo2/2);
         }
         translate([0,0,oo])
diff --git a/gridfinity-spiral-vase.scad b/gridfinity-spiral-vase.scad
index 7e80e82..a838f32 100644
--- a/gridfinity-spiral-vase.scad
+++ b/gridfinity-spiral-vase.scad
@@ -216,7 +216,7 @@ module block_magnet_blank(o = 0, half = true) {
 module block_base_blank(o = 0) {
     mirror([0,0,1]) {
         hull() {
-            rounded_square(l_grid-o-0.05-2*r_c2-2*r_c1, h_base, r_fo3/2);
+            rounded_square(l_grid-o-0.05-2*r_c2-2*r_c1, h_base, r_fo3);
             rounded_square(l_grid-o-0.05-2*r_c2, h_base-r_c1, r_fo2/2);
         }
         hull() {
diff --git a/standard.scad b/standard.scad
index 2e76a29..b71f817 100644
--- a/standard.scad
+++ b/standard.scad
@@ -14,7 +14,7 @@ r_fo1 = 8.5;
 // outside radii 2
 r_fo2 = 3.2;
 // outside radii 3
-r_fo3 = 1.6;
+r_fo3 = 1.6 / 2;
 // length of a grid unit
 l_grid = 42;