Dear Woodsy,
As one of the newer visitors to the site feedback had not seen Mechanoids from Dr Who, I'm enclosng this in case of use.
Mechanoids appeared in the eary adventures of Dr Who, from the Hartnell era. As I recall they were robots sent from earth to help prepare a landing area for humans (quite how they could do this I have no idea - like the daleks, they seem badly adapted for any practical work!). When the humans never arrived, they built their own civilisation, including a city on stilts. I beleive the episodes are lost, but what may survive is one of the TV21 records which featured a recording of this adventure. The climax was a battle between Daleks and Mechanoids - Mechanoids being armed with a sort of flame-thrower.
The Mechanoids featured in the "Dalek World" annual, circa 1965, when they became an alien race encountered during the Daleks' exploration of space. A copy of the first black and white frames included. I think the small half-oval creatures with them were some sort of maintenance robots.
An alternative origin of Mechanoids was given in The Daleks strip in TV21. Once again, this is an alien race which comes across the Daleks. One of Ron Turner's dramatic frames enclosed of this.
In both cases, the strips elaborated slightly on the simple "geodesic dome" shape of the original TV Mechanoids.
All the best,
Andy B.