Xtool F1 jig to engrave makercoins. I do these for craft shows to give away as business cards. Its a great way to get rid of small amount of filament. 

 

3d print file found at: https://makerworld.com/en/models/952423#profileId-920671

 

Settings used on the Xtool F1

IR Power 100%

Speed 1500 (slow it down for light colors, i use 250 for white)

Pass 1

Lines per CM 200