Magnetic Caliper Case

This is a magnetic case for the Vinca caliper. Use pieces of 1.75mm filament as the hinge, it may be tight, but you can work it in for a reliable hinge.You will also need 10 6x3mm magnets. These provide a strong and satisfying opening mechanism. Even if you turn it upside down and try to shake it open, it will not. There is also a spot for a microfiber cloth and battery. Calipers here