diff --git a/Makefile b/Makefile
index bbff511..774198a 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ b: build/allparts.svg
 build:
 	mkdir -p build
 
-build/%.scad: src/*.rs ag24.dat sd8020.dat sd7062.dat m1-il.dat
+build/%.scad: src/*.rs ag24.dat m1-il.dat
 	mkdir -p build
 	cargo run
 
diff --git a/src/main.rs b/src/main.rs
index e2d1a01..3c3f278 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -325,16 +325,15 @@ fn spar(length: f32, center: bool) -> ScadObject {
 
     //register_part(scad!(Square(vec2(length, SPAR_SIDE_WIDTH * 3.0))));
 
-    for i in 0..3 {
-        let mut panel = scad!(Cube(vec3(SPAR_SIDE_WIDTH, length, CARDBOARD_WIDTH)));
-        if center {
-            panel = scad!(Translate(vec3(0.0, -length/2.0, 0.0)); panel)
-        }
-        let rot = 120.0 * i as f32;
-        spar.add_child(scad!(
-            Rotate(rot, vec3(0.0, 1.0, 0.0)); panel
-        ));
-    }
+    let top = centered_cube(vec3(SPAR_SIDE_WIDTH, length, CARDBOARD_WIDTH), (true,false,false));
+    let mut left = centered_cube(vec3(SPAR_SIDE_WIDTH, length, CARDBOARD_WIDTH), (false,false,false));
+    left = scad!(Rotate(120.0, vec3(0.0, 1.0, 0.0)); left);
+    left = scad!(Translate(vec3(SPAR_SIDE_WIDTH/2.0, 1.0, 0.0)); left);
+    let right = scad!(Mirror(vec3(1.0, 0.0, 0.0)); left.clone());
+
+    spar.add_child(left);
+    spar.add_child(right);
+    spar.add_child(top);
 
     spar
 }