Entanglement devices

Entanglement devices are a form of defence used by competitors in Robot Wars, first legalised in Series 10 in response to the dominance of spinning weapons in Series 9. Entanglement devices come in various forms, including loose ropes, wires and chains, and are designed to immobilise spinning weapons, and protect the user from those weapon types. The only confirmed robots to use entanglement weapons in Series 10 so far are The Swarm, Push to Exit and Donald Thump.

Definition
An entanglement device is a sacrificial addition to a robot which is easily absorbed by spinning weapons, and can consist of forms such as rope and chains. If the entanglement device is successful, it should cease the function of spinning weapons such as bar spinners and drums upon contact by jamming it, or absorbing blows. However, it cannot consist of low-tech devices such as a fishing net, cables or mesh. Legal entanglement devices cannot exceed 1m in length, nor can it attach the opponent to the competing robot. The entanglement device must be designed specifically to combat spinning weapons.

Advantages and Disadvantages
Advantages
 * Entanglement devices, when successful, directly counter the most successful and damaging weapon type in modern Robot Wars, spinners.
 * Devices such as rope and chains can be applied to a robot externally, making them easily to affix and replace.
 * Being an inactive addition to a robot, potentially made from soft material, entanglement devices do not contribute heavily to a robot's weight.
 * Most entanglement devices are inexpensive, and require little-to-no engineering to apply.
 * Entanglement devices are a new addition to robotic combat, and are not applied to robots in battles that do not involve spinners, adding a surprise factor to each device.

Disadvantages
 * Entanglement devices designed to combat one form of spinner, such as a horizontal flywheel, may not work for different spinners such as a vertical disc.
 * The rules on entanglement devices are stringent, leading to the potential rejection of devices.
 * An entanglement device used by a robot with a spinner of its own risks jamming their own weapon.
 * Proven entanglement devices such as mesh and nets are considered to be illegal.
 * Robots which used entanglement devices illegally, such as Bulldog Breed, were disciplined for their rule-break.
 * Robots and weapons designed purely to entangle spinners, such as The Swarm, have little in the way of offensive output.

List of Robots with Vertical Crushers
Robots are listed alphabetically. Robots with an asterisk used an illegal device.