diff --git a/src/pixel/px_difference.scad b/src/pixel/px_difference.scad
deleted file mode 100644
index d6d91889..00000000
--- a/src/pixel/px_difference.scad
+++ /dev/null
@@ -1,6 +0,0 @@
-use <../util/sort.scad>;
-use <../util/has.scad>;
-
-function px_difference(points1, points2) =
-    let(sorted = sort(points2, by = "vt"))
-    [for(p = points1) if(!has(sorted, p, sorted = true)) p];
\ No newline at end of file
diff --git a/src/pixel/px_intersection.scad b/src/pixel/px_intersection.scad
deleted file mode 100644
index d46473d5..00000000
--- a/src/pixel/px_intersection.scad
+++ /dev/null
@@ -1,11 +0,0 @@
-use <../util/sort.scad>;
-use <../util/has.scad>;
-
-function px_intersection(points1, points2) =
-    let(
-        leng1 = len(points1),
-        leng2 = len(points2),
-        pts_pair = leng1 > leng2 ? [points1, points2] : [points2, points1],
-        sorted = sort(pts_pair[1], by = "vt")
-    )
-    [for(p = pts_pair[0]) if(has(sorted, p, sorted = true)) p];
\ No newline at end of file
diff --git a/src/pixel/px_union.scad b/src/pixel/px_union.scad
deleted file mode 100644
index e6e3cd34..00000000
--- a/src/pixel/px_union.scad
+++ /dev/null
@@ -1,8 +0,0 @@
-use <../util/sort.scad>;
-use <../util/dedup.scad>;
-
-function px_union(points1, points2) =
-    dedup(
-        sort(concat(points1, points2), by = "vt"), 
-        sorted = true
-    );
\ No newline at end of file