How do they cut off casts?
Regarding this, how do Casts not cut skin?
Cast saws have a sharp, small-toothed blade that rapidly vibrates back and forth; it does not spin around like a circular saw. However, against your skin, the cast saw simply moves the skin back and forth with the vibration, not cutting into the skin.
Herein, can you cut off your own cast?
It is not advisable to remove the cast yourself but if you are determined tin snips are your best option as they will prevent you from cutting yourself since the cut will be made along not right through (across).
If there's still an open wound, follow your doctor's instructions on how to take care of it. If your limb was in a cast for 3 weeks or more, soak your skin in warm water for 20 minutes twice a day for the first few days after the cast is removed.