I'm not always happy with my photos, but I usually try to put a cloth backdrop behind the machine for two reasons. First, the room is usually cluttered and is distracting. And because the details of the machine may blend in with items in the room behind it.
You'll laugh, but my backdrop stand is my kid's cheap telescope on a tripod. The telescope is turned horizontal, sometimes with a yardstick placed on top to widen the backdrop, with a piece of cloth thrown over it.
Tate