Welds

Welds are how you fasten two blocks together. There are many reasons to do this, such as creating environmental details, or creating more complex blocks out of the ones available.

Hinges

Hinges connect two blocks at a single pivot, making a free-swinging elbow-joint. This joint is ideal for swinging vines and other hanging objects.

Solid Welds

Solid welds are exactly what they sound like. The fixed nature of this weld is useful for cementing switches or trap doors into place.

Spring Joints

Spring joints are similar to hinges, except they try their darndest to keep the joint at its default position. They're especially useful for attaching leaves to trees.