Hi All!
New project, my wife ordered these and I have no idea how to:
Number one, hold them down.
two, score I assume?
Would a leatherette setting be appropriate?
I did look at the old posts on cork but I think these are going to be a bit different.
As always, thank you so much for any input or advice.
Find out what that layer is made of. That’s issue #1. You need to be sure it’s not PVC.
After that it’s test time. Check out #6:
Once you figure it out let us know, and maybe update the spreadsheet!
As for how to keep it flat, I’d probably use double sided tape or my vacuum table.
At the price these are worth replacing the foam, or you could use spray adhesive on the wooden side.
Most of what is available is 4" diameter
“Find out what that layer is made of”
good point, thank you. Be right back!
Apologies for that bad images. the bottom is cork. If I use spray adhesive, just add the thickness to the “non proofgrade material” section…Yes? Or, I can clean the crumbtray off after I suppose if it actually sticks to it.
Weird this was what I linked…
What I would suggest is to make your coaster in any material and 4" diameter and use the sticky cork on afterwards. I use light maple but about any insoluable material would work. If you want just cork without sticky that is widely available too.
This one I have in the catalog in blue acrylic and maple…
She already bought 100 of these… suprised me… LOL she was excited to have a laser in the house. She bought 100 slate coasters as well. I bought the laser for other stuff but I am “crafting” now. 
Ok, so that is really cool. I make a lot of my own things as well but that is awesome!!
Those foam/cork coasters would go great under the slate, and stuck on after the slate (or whatever else) was finished.
I see where you are going with that… I was thinking of throwing a bunch of different “sayings” for fun party coasters. I did not want to start down this road but, here I am 
Happy wife etc etc…
For that all you need is cardboard, not even circles of cardboard.
Except fo things like slate, or ceramics, etc. it is better to cut your own circles. (think about like painting the circle after you have shot the arrow, it is much easier to center the shot)
Thank you, I wasn’t sure if cardboard would catch on fire or not. I was going to test it but I figured I would come here first. Glad I did. thx!
There are Proofgrade settings for cardboard and cardstock and paper
There is even a presetting for cardboard…
Thank you!
Thank you for the assist folks, really appreciate you not kicking me out for lack of creativity
Great design
Unless I missed something in here, you never did actually confirm what the “leather” layer is. They list it as “PU” which is less than helpful. Someone in the reviews seems certain it’s petroleum based. The thing with PVC is it can engrave just fine - but the invisible particles start eating your machine and there’s no way to stop it except literally hand cleaning every bit.
So please be very careful engraving unknown things.
With the number of reviewers talking about engraving them you’re likely safe - but you need to know you’re making a decision when you engrave something like that.
