Yeah, but…
Couple weeks ago, saw Steve Mould’s diy hologram video containing inspiring content on Specular Holograms. Dug around and found Mike Miller’s scratchhologram project, shared link to his project and other info stumbled across in the drag-knife-and-laser-etched-specular-holograms topic where several folks were also curious about Specular Holograms.
Started on a quest to replicate results using a CNC. Mike’s app has most of what was needed, the code was painfully slow with some quirks, but a great starting point. I could not have created something from scratch this quickly. Would be nice to package into something anyone could use. Added bunch of features, load .STL, export .SVGs, profile/contour detection, face merging/simplifying, Dark mode of course, and other stuff… Was exporting GCODE at one point, but removed because I want folks to make (and be responsible…) for their toolpaths, for now anyway.
Original App :
Latest App after much hackery :
Shared video clip, details and files over at Drag knife✒️ and Laser🔫 Etched (Specular) Holograms - #58 by azab2c
The Hologram results are visible, providing lighting conditions are precisely setup… Has been fun, plus I have a generic .STL to .SVG convertor app now. Plus this custom drag bit, and a bit more knowledge on misc topics encountered during this project. Much time has been spent on this…