Double-tumble mixer

A multi-axis mixing apparatus, comprising:

• a first motor and a second motor;
• a frame supporting the first motor, the first motor configured to selectively rotate a first rotatable assembly about a first axis;
• and
• a second rotatable assembly rotatably supported by the first rotatable assembly, wherein the second rotatable assembly is rotatable about a second axis, and wherein the second motor is configured to selectively rotate the second rotatable assembly about the second axis;
• wherein the second rotatable assembly comprises a clamping mechanism configured to receive and hold a container containing contents to be mixed, and wherein the second axis is substantially perpendicular to the first axis.

A method of multi-axis mixing, comprising:

• receiving a container containing contents to be mixed at a clamping mechanism such that the container is held by the clamping mechanism, wherein a first rotatable assembly rotatably supports a second rotatable assembly that comprises the clamping mechanism holding the container;
• rotating the first rotatable assembly about a first axis;
• and
• rotating the second rotatable assembly about a second axis;
• wherein causing the rotating of the first rotatable assembly about the first axis causes the second rotatable assembly to rotate about the second axis, and wherein the second axis is substantially perpendicular to the first axis.