What is the consensus on the Fordom K2293 flexshaft engraver? I realise that air power is preferred, but in my new job there just isn't room for a compressor, control box etc, however I do have a second hanging position for a flex shaft above the bench. And while the Lindsey unit eliminates the control box I would still need a source of compressed gas.
http://www.ottofrei.com/Foredom-K-2293-PowerGraver-Kit_2
http://www.ottofrei.com/Foredom-K-2293-PowerGraver-Kit_2