diff --git a/src/bin/flat.rs b/src/bin/flat.rs
index 9626cb5..70ebcf2 100644
--- a/src/bin/flat.rs
+++ b/src/bin/flat.rs
@@ -47,10 +47,12 @@ pub fn main() {
 			gc.canvas_height(1000.0);
 			tube.render(gc);
 			gc.line_width(0.5);
-			gc.stroke_color(Color::Rgba(1.0, 0.5, 0.0, 0.5));
-			draw_fan(gc, &tube, vec2(-500.0, 0.0), vec2(1.0, 0.0), 1.0);
+			// gc.stroke_color(Color::Rgba(1.0, 0.5, 0.0, 0.5));
+			// draw_fan(gc, &tube, vec2(-500.0, 0.0), vec2(1.0, 0.0), 1.0);
 			gc.stroke_color(Color::Rgba(1.0, 0.5, 0.0, 1.0));
 			draw_fan_2(gc, &space, vec2(-500.0, 0.0), vec2(1.0, 0.0), 1.0);
+			gc.stroke_color(Color::Rgba(0.5, 1.0, 0.0, 1.0));
+			draw_fan_2(gc, &space, vec2(-2.5 * tube.outer_radius, 1.25 * tube.external_halflength), vec2(1.0, -1.0), 1.0);
 			draw_track(gc, &space, vec2(-500.0, 0.0), vec2(1.0, 0.2));
 			draw_track(gc, &space, vec2(-500.0, 0.0), vec2(1.0, 0.5));
 			draw_track(gc, &space, vec2(-0.5 * tube.inner_radius, -1.25 * tube.external_halflength), vec2(0.1, 1.0));
@@ -198,7 +200,7 @@ fn draw_ray_2(gc: &mut Vec<Draw>, space: &Space, base: Vec2, dir: Vec2) {
 		}
 		gc.stroke();
 		gc.new_dash_pattern();
-		gc.dash_length(6.0);
+		// gc.dash_length(6.0);
 		gc.new_path();
 		gc.move_to(ray.pos.x, ray.pos.y);
 		match sub {