So I just finished engraving some glasses on my rotary attachment and started prepping to engrave another project. I noticed some little round "specs" on the table. I looked a little closer and found these. There are two sizes and they look pretty uniform in size and shape. I thought they were something like slag from my welding days but they are way too "perfect" looking, that's what I think anyway.

They are magnetic, they stuck to my caliper when I measured them. The larger ones are .061 diameter, the smaller ones are .051. The picture I attached has been enlarged, that is not their actual size.

Any ideas what in the world they might be? A bearing perhaps?

I am hesitant to continue lasering until I figure out what they might be.

Thanks for any help!
Gary

Never mind...

I have wrist weights that are for working out that I thought were filled with sand. I use them to prop things up in the laser as well as hold things down. I just moved one to look around the laser bed for more of the mystery discs and viola, more of them "magically" appeared. The stupid things are filled with metal, not sand and there was a tiny hole in one that was leaking them out. I am not sure why they are magnetized, but at least I know where they are coming from now.

Gary