This was created in acrylic from GCode produced with 'DotG' using an impact magnet.
Is the 'Impact Magnet' you are referring to, an "Electric Engraver" tool? (The brand I have is a Wis, made in China).
The length of stroke is so small on this tool, that it appears to just vibrate. Regardless of the various stroke settings' position. I tried to mount it on my machine to engrave some acrylic. Turned into a 3 day project, just trying to get a successful design implemented on the tool holder. However, even using the surface of a freshly planed piece of oak stock, as the mounting surface for the plexiglass, the results were inconsistent. The tool would plunge so deeply into the plexiglass, that it could not complete it's strokes in some areas, while in other areas the tool tip would not even contact the surface!
I have already proven The acuracy of my machine's table, by doing engravings using the router tool into solid oak, which involves multiple passes to achieve the desired depth of cut with good results. So the inconsistencies I am experiencing with the Engraver tool MUST BE in the Engraver tool itself. What is the brand name, or supplier info of the 'Impact Magnet' tool you are using?