O-Ring Measuring Tower

thingiverse

These towers serve as a convenient measuring tool for determining the diameter of O-rings, rendering calipers and rulers unnecessary. To measure an O-ring's diameter using these towers, simply place the ring around the tower until it fits snugly, then count down the rungs to obtain the measurement. Attempting to design precise measurements directly into the tower proved less effective than using a small marker to mark increments as needed. Big towers are designed for measuring diameters ranging from 61mm to 100mm. Small towers are ideal for measuring diameters between 3mm and 60mm in diameter. The tallest available tower measures 240mm, although users have the option to pause their print early if they only require it for measuring small O-rings.