diff --git a/Makefile b/Makefile
index 3cf80f0..cfc5c35 100644
--- a/Makefile
+++ b/Makefile
@@ -51,7 +51,8 @@ dxfs: build/%.scad
  
 clean:
 	rm -rf build
-	rm *.selig
+	rm *.dat
+	cargo clean
 
 vis: build/assembly.scad
 	openscad build/assembly.scad
diff --git a/src/constants.rs b/src/constants.rs
index 0331d20..aec0ef2 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -8,7 +8,7 @@ pub const WINGSPAN: f32 = 45.0 * IN2MM;
 pub const LENGTH: f32 = 30.0*IN2MM;
 /// strut count in the main wing
 pub const STRUTS: usize = 12;
-pub const CARDBOARD_WIDTH: f32 = 2.4;
+pub const CARDBOARD_WIDTH: f32 = 3.5;
 /// length of each side of the triangular spar
 pub const SPAR_SIDE_WIDTH: f32 = 0.75 * IN2MM;
 pub const FUSELAGE_GAP: f32 = 0.4 * IN2MM;