Some asked about the ability to engrave dice that I get from Amazon (https://www.amazon.com/Blank-White-Dice-16MM-Storage/dp/B00LW5CBL8/ref=sr_1_1?ie=UTF8&qid=1493001514&sr=8-1&keywords=blank+dice+100)
These are a compression molded granular urea compound. They are your traditional heavy dice similar to the weight and feel of dominoes.
I grabbed a GF logo off Google Images and tried some different engraving settings. The best was the 1% power/335in per min/1355LPI but the 675LPI was pretty close. The 1355LPI engrave lettering was a good black while the 675LPI engrave was slightly on the brown side. The two Orodurin/elvish engraves were at 450 & 1355LPI.
Some staining is evident but a quick wipe afterward with isopropyl (rubbing) alcohol and it’s clean and sparkling.
There is an etch that can be felt by a fingernail but there’s no melting at the power/speeds/LPI used. The image was a pretty low res image but in the final logo you can even see the tiny TM that is part of the glowforge text.
Lots of potential for custom dice for games - either new or replacements ones. If you’re going to be making a bunch, I’d make a template & jig by cutting out some squares in a piece of plywood that you can drop the blank dice into. Then just keep rotating them to do each face.
BTW, these were .633" on a side. That meant it couldn’t be used with the crumb tray in place. I stacked an inch or so of baltic birch ply in place of the crumb tray, popped a dice on top, added the two together and then subtracted the 1.5" height of the stock crumb tray to determine the setting for the GFUI’s “material thickness” - the height it is above the crumb tray. (This is counter to most lasers where you’re setting the distance between the lens and the material.) Upload, print and push the blinking button!