This thing is derivative of http://www.thingiverse.com/thing:1528 and http://www.thingiverse.com/thing:12278For those who would like to dine with Doctor Who.Thread worked just right when printed on Netfabb and Ultimaker. At the same time this combo is known to slightly increase outer dimensions of printed objects. If you have any trouble with the thread let me know and I'll fix it.Be careful when printing light on top of the lid. It is a small structure so can overheat easily - cool it down appropriately (slow down, orbit or just blow on it).