Joints

Joints are methods to link objects to each other. There are three categories of links: basic (gluing), bolts (basic, motor, wobble, spring), and distant (string, rod, elastic, spring, winch, piston).

Gluing Objects Together
The simplest method to join objects is to glue them together by making them touch with the Popit Cursor, then holding X. Objects glued together will move as one unit and therefore have the least impact on performance compared to other links.

Bolts
Bolts allow objects to rotate around a set point between them. The objects must be in different layers if you wish to link them with a bolt. Objects may be bolted together either by putting an object with a detached bolt in front of another object (signified by a drill whirring) or by placing the bolt directly on the front object while the objects are lined up.

Basic Bolt
Has an adjustable strength, which determines how hard it tries to prevent rotation.

Spring Bolt
Will try to stay at a set angle.

Wobble Bolt
Motorized. Will tilt back and forth through a adjustable angle range.

Motor Bolt
Motorized. Will continuously rotate at the set speed in the set direction.

Connectors
Connectors allow players to connect two distant objects together. Links themselves have two methods of determining what a link does: the "hold" and the interaction.

String
String is the solid tether. Being a tether, it can't push or be made stiff. Being solid, its maximum length cannot be adjusted. String is most commonly used for suspended swings or to gang bubbles from.

Rod
The rod is the solid link. Being a link, it can push and be made stiff. Being solid, its maximum length cannot be adjusted. Rods are most commonly used to keep distant objects in line with each other.

Elastic
Elastic is the stretchable tether. Being a tether, it can't push or be made stiff. Being stretchable, it can be forced beyond its target length, but will try to maintain that length. (example needed)

Spring
The spring is the stretchable link. Being a link, it can push and be made stiff. Being stretchable, it can be forced beyond its target length, but will try to maintain that length. Springs are most commonly used for bouncy platforms.

Winch
The chain winch is the adjustable tether. Being a tether, it can't push or be made stiff. Being adjustable, its target length can be varied either by time or using logic. A winch with an equal minimum and maximum length will function like a string. Winches are most commonly used for adjustable swinging platforms.

Piston
The piston is the adjustable link. Being a link, it can push and be made stiff. Being adjustable, its target length can be varied either by time or using logic. A pistron with an equal minimum and maximum length will function like a rod. Pistons are most commonly used for basic moving platforms.