Got to try this today in 0.5mm sheet copper. Took a simple skull silhouette image from the 'net and used the tool to produce the design. Then copy and paste to make another. Each skull is 40mm x 40mm.
Cut with a 1/16th fishtail at 10,000rpm, 0.1mm depth step and 120 mm/min feed (still trying to find a good balance between speed and finish).
Very lightly finished and hand hammered for pattern. Will be properly cleaned and polished tomorrow. One will become a necklace pendant.
Tool works really well and is a great way to get shapes into Easel quickly, ideal for jewellery making, wife thinks it's magic.