Don’t need specific settings, I have those, I’ve used this material a fair amount.
I’m looking for ideas on how best to engrave the likeness of a bank-note (it’s not genuine currency, they are images used to promote the financial plight of many of the Lakota tribe, and a friend of mine is heavily involved in that.)
So I have a stash of black anodized aluminum “business cards”, so obviously a direct engrave would result in a “negative” image. My thought is to just create an inverse image, and engrave that. I have plenty of material to test on, but figured I’d ask here if anyone had done anything similar and could share their results?
You can sort of see some vertical banding in the middle. I assume this is rough machining of the aluminum under the anodization, though I guess it could be some sort of physical moire from the laser pulses or motion control. I suspect material first though. I should go look at it with a microscope to confirm.
I kept the job in my dash apparently, these are the settings:
I have printed that on frosted acrylic, and built a box to back-light with a pale blue LED mix. It runs for week on a small USB power brick. The dark areas were filled with a light teal acrylic, thru the engraving on the masking. It was about 6" or so wide. I never took a pic before I gave it away to the sushi place I would go to often. When my daughter gets back from her stint in Hawaii, I’ll have her buy me dinner there and try to get a pic of it, behind the bar.
Thx. There’s no urgency so a high LPI will be perfectly fine. What was posted above is similar to the settings I already use for anodized Alu., so I’ll probably just bump up the LPI and speed it up to see what I get.