Once you get a 'system' down you an take photos fairly quickly and consistently. I took the desk lamp idea from John Holbrook who takes the best photos of guns I have ever seen. I think he uses two lamps though.
I always use the work bench in my garage so I don't need to depend on outside light and can take pictures any time of day.
Simple background - Drape the neutral color blanket over my workbench and raise the rear portion by attaching the blanket to hooks on pegboard with clothes pins
Position desk lamp for best shadow and adjust rheostat for brightness - less brightness for lighter objects. The articulating arm on the lamp really helps. My lamp has a bright halogen bulb.
Always use a tripod - $20 from discount store
Set camera to 'macro' setting for the extreme close-ups - most all cameras have one with a symbol shaped like a flower
Always use the two second delay - most all cameras have them.
Never use a flash - the desk lamp and overhead lights should provided enough light. Might try one of the built-in settings on camera if not bright enough.
Press the button using the delay feature and take your hand off of camera. It should focus itself without disturbing it and it'll take a clear focused photo most every time
I'm using a basic, entry level Sony S-85 I bought about eight years ago. I once used my sister's high-end Nikon and it didn't do any better that I could tell.