diff --git a/CR_BOX.scad b/CR_BOX.scad
new file mode 100644
index 0000000..3b3cb6e
--- /dev/null
+++ b/CR_BOX.scad
@@ -0,0 +1,44 @@
+/* [Filter] */
+filterThiccness = 100.0; //mm
+
+/* [Piece] */
+//Length, width, height. Size of the piece including the wall thiccness
+pieceDimensions = [150, 150, 25];
+pieceWallThiccness = 1.2; //mm
+bottomThiccness = 1.0; //mm
+mirrored = false;
+insideCornerStyle = 2; //[0:Cut Corner, 1:Don't cut corner, 2:Rounded corner]
+
+/* [OpenSCAD] [Settings] */
+$fn = 100;
+
+module filter(filterDimensions = [100, 1000, 1000]){
+	cube(filterDimensions);
+}
+
+mirror([mirrored? 1 : 0, 0, 0]){
+	difference(){
+		translate([-pieceWallThiccness, -pieceWallThiccness, -bottomThiccness]){
+			cube(pieceDimensions);
+		}
+		#filter([filterThiccness, 1000, 1000]);
+		#translate([filterThiccness + pieceWallThiccness, filterThiccness, 0]){
+			rotate([0, 0, -90]){
+				filter([filterThiccness, 1000, 1000]);
+			}
+		}
+		//Corner cutter
+		if(insideCornerStyle == 0){
+			translate([filterThiccness + pieceWallThiccness, filterThiccness + pieceWallThiccness, -bottomThiccness]){
+				cube(pieceDimensions);
+			}
+		}else if(insideCornerStyle == 1){
+			//nothing lol
+		}else if(insideCornerStyle == 2){
+			radius = pieceDimensions.x - (filterThiccness + pieceWallThiccness);
+			#translate([pieceDimensions.x, pieceDimensions.y, -bottomThiccness]){
+				cylinder(r=radius, h=pieceDimensions.z);
+			}
+		}
+	}
+}
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