My wife started crocheting items to sell and wanted to order leather tags inscribed by laser. I took this as a opportunity to make a Christmas present. I decided to try milling aluminum in the form of a brand she could heat to brand the leather tags.
The pictures here are from the first try. I’m hoping to get a second try in by the end of the long weekend so I give myself more room to bandsaw it out after the cut and get an edge on all four sides.
I first face milled the piece with 1/4 3-flute carbide3d endmill. Feed 15IPM Plunge 10IPM depth .006
I sprayed with wd40 and blew chips away with compressed air during the cuts. This took about 15 minutes and the surface was great with a pass of a scotchbrite pad.
I then vcarved the stamp using a 25 degree .3mm tip bit bought here. https://www.amazon.com/gp/product/B07DBX6CFJ/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
5IPM feed 3IPM plunge .003 depth
This took about 3 hours. The roughness on the edges was me bandsawing and chiseling out where I didn’t have it set up to mill out like I should have. Hopefully that is solved on the second try.