U need cnc to engrave them, which would work fine.
You could have a punch made, and stamp them, then file off the metal that gets mushroomed up around the R and the arrow. If you stamp them, I would consider leaving plus stock on the surface, and after you stamp them, re-skim off a few thou, so you can’t tell that you stamped them.
That part in the picture could have been coined, like when you make a coin? like a quarter? (A form of punching)
It's highly possible it was made from "powdered metal" but that wouldn't be practical for only 25 pcs, but would be worth a look, if you needed a few hundred of them. They have metal that is in a powdered form, and compact it in a mold, in a press, so the powder holds together, in the form you want, then bake it in an oven! Yes, I’m not BS ing you, they make precision parts like that!
If you are single, try finding an ugly girl who's daddy owns a cnc machine shop, and sweet talk her, and you will get them engraved for free! If your married, bring a case or two of cold Heineken to a cnc shop, and bribe an employee. (now I may be BS ing you) Hey, I’m only throwing ideas cause I see no one else has any!
Good Luck  |