Self-bondage - Release Mechanisms

Release Mechanisms

Many release mechanisms are used in self-bondage to allow the practitioner to escape the restraints after a period of time. There are various trade-offs to be made between ease of use, reliability, precision of timing, cost, and so forth. There should be several mechanisms available, thus ensuring redundancy and safety.

• Ice cubes are commonly used as a release mechanism. For example, a key can be placed in water which is then frozen. The key will not be available until the ice melts. Advantages include simplicity and reliability. The disadvantage is that it can be difficult to gauge precisely how long a scenario will last, although some enjoy the uncertainty.

• Ice locks are frozen together and do not move until the ice has melted down. These can be used alone (to lock a person to a stationary object) or in combination with tightening devices (to keep the tension for a certain period of time).

• "Salt locks": Salt, sugar or any other safe water soluble substance blocks parts of a lock. It needs to be dissolved in order to release the mechanism.

• Combination locks can be used as release mechanisms. These can rely on the time needed to try every possibility for an unknown combination, or they can rely on light in order to see to enter the known combination correctly.
  • Unknown combination: The idea is that the lock is reset to an unknown combination, then used to lock the bondage in place. The person must find the correct combination by trial and error. A three digit combination lock contains a thousand possibilities. At a second per attempt, this could take up to 16 minutes and 40 seconds, usually less assuming the combination starts with lower numbers. For a four-digit lock, it is nearer two hours. Disadvantages include the fact that it may be distracting to actively "crack" the lock.
  • In darkness: Even if the number is known, for many locks, it is not possible to enter the combination without being able to see the faces of the dials. This release mechanism relies on darkness. The light can be provided either by the morning sunlight, or, preferably, through a light on a time switch. The advantages include a large amount of control over how long the bondage lasts (with a timer), and a backup of the onset of daylight. The disadvantages are only being able to use the technique at night, and having to perform the bondage in the dark.

• Electromagnets: Electromagnets can be used to release keys after a delay. If combined with electronics or a computer, a large amount of control is possible over the timing, and the mechanism is somewhat "fail-safe" — if power fails, the key will fall early. Disadvantages include complexity and cost. The powerful electromagnets used in door locks can also be adapted for use directly as restraints.

• Soldering irons: Soldering irons can be used, in conjunction with a timing mechanism, to cut a nylon rope, or to release keys. This may be a fire hazard unless appropriate precautions are taken.

• The use of a delivery/messenger service or regular mail in order to obtain the object (usually key/keys) needed in order to become released. This relies on the delivery service being 100% efficient.