diff --git a/roller_parts.scad b/roller_parts.scad
index abaf752..8652329 100644
--- a/roller_parts.scad
+++ b/roller_parts.scad
@@ -9,9 +9,9 @@ module roller()
 		difference() {
 			union() {
 				translate([0,0,-roller_thick/4])
-					cylinder(h=roller_thick/2, r1=roller_diam/2, r2=roller_diam/2+(roller_thick/2)*tan(roller_angle), center=true, $fn=32);
+					cylinder(h=roller_thick/2, r1=roller_diam/2, r2=roller_diam/2+(roller_thick/2)*tan(roller_angle), center=true, $fn=64);
 				translate([0,0,roller_thick/4])
-					cylinder(h=roller_thick/2, r2=roller_diam/2, r1=roller_diam/2+(roller_thick/2)*tan(roller_angle), center=true, $fn=32);
+					cylinder(h=roller_thick/2, r2=roller_diam/2, r1=roller_diam/2+(roller_thick/2)*tan(roller_angle), center=true, $fn=64);
 			}
 			cylinder(h=roller_thick+0.1, r=roller_axle/2, center=true, $fn=32);
 			cylinder(h=roller_thick*2/3, r=roller_axle/2+0.5, center=true, $fn=32);