Device of Ancient origin which allows the construction of technology from base molecules. Aided by an interface similar to an Ancient repository of knowledge, a user interfaced with the device can assemble a design virtually. In concert with a form of matter-energy conversion, the design is later willed into solid reality after it is assembled. A pedestal is configured to receive the completed pieces.
The Quest, Part 2 - In the hopes of destroying the Ori, Merlin and Dr. Jackson use an Ancient assembler to create a second Sangraal.
The Shroud - Turned into a Prior by Adria, Daniel Jackson uses Merlin's assembler to complete the anti-Ori weapon.