Assembler
From Tardis Wiki, the free Doctor Who reference
Assemblers were robots that constructed furniture, including the UNIT ZX419 that the Cylinder wanted from Galarias. They wanted Mel and Banto Zame to make it in 30 minutes. They thought it was impossible. When Mel and Banto tricked them into thinking they assembled it, they removed it from their memories. (AUDIO: The One Doctor)