Blood Spatter Apparatus

This is so students can measure the width and length of blood spatter to determine the angle of impact. Then students can measure the distance of the spatter to calculate the area of origin. Students can also determine the area of convergence (doesn't have to be in the middle). Or they can use the string method. It is designed so that every 15 degrees there are 4mm holes for the spatter to be in at locations 20,30,40,50,60,70,and 80mm away from the middle. The holes in the upright pole are for common angles (at 60mm and 15 degrees a hole is at 16mm. at 20mm and 45 degrees a hole is at 20mm, at 30mm and 75 degrees a hole is at 112mm, etc.) The spatter is 5mm x 10mm for 30 degrees, 5mm x 5.7735mm for 60 degrees, 5mm x 19.31852mm for 15 degrees, 5mm x 7.07107mm for 45 degrees. I haven't printed this yet, so I hope it works. Let me know what you think!