diff --git a/src/main.rs b/src/main.rs
index 08861a4..b8cebfa 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -55,7 +55,7 @@ fn main() {
 		let mut t = 0.0;
 
 		let n_rack_teeth = 6;
-		let n_crown_teeth = 3;
+		let n_crown_teeth = 4;
 
 		let n_teeth = 24;
 		let n_teeth_sample = n_teeth;
@@ -131,7 +131,7 @@ fn main() {
 
 				let make_crown = |profile| {
 					let mut crown_project = Vec::new();
-					for tooth in -n_crown_teeth..=n_crown_teeth {
+					for tooth in -n_crown_teeth..n_crown_teeth {
 						for k in 0..n_points_per_tooth {
 							let tooth_frac = k as f32 / n_points_per_tooth as f32;
 							let normal_height_at_r =
@@ -226,7 +226,7 @@ fn main() {
 
 				let mut pts_rack = Vec::new();
 				let mut pts_cutter = Vec::new();
-				for tooth in -n_rack_teeth..=n_rack_teeth {
+				for tooth in -n_rack_teeth..n_rack_teeth {
 					for k in 0..n_points_per_tooth {
 						let x = (tooth as f32 + k as f32 / n_points_per_tooth as f32 + rack_offset)
 							* PI;