Looking at this Tracked Laser Mining Vehicle by Jon & Catherine Stead, the first thing that springs to mind is classic Blacktron. A few details seem out of place in this assumption and the description reveals no villainous intentions.
The yellow spacemen suggest this is in fact very much a peaceful vehicle. I particularly like the laser array, supported by strings going between pillars of translucent red 1×1 round plates. The ground is quite interesting as well, using an established technique and carrying us to a faraway moon or planet with its colours.