[How To Mechatronics] capitalized on this and built a SCARA robot arm using 3D-printed parts and common 3D-printer components. The basic SCARA mechanism is a two-link arm, similar to a human arm.

They are launching version 3 of their LittleArm robotic arm ... hackers to build a more advanced 3D printed version, or even a giant hydraulic powered arm.

The machine is powered entirely by a cartridge of compressed gas and can be printed in one piece using a single material.

D printing is a great way to create robot shells, but you usually need an extra component to actually get them moving. The easy and more obvious answer is to wire it up with elec ...