Wood warped after cut

[lightner]

I’ve had good success in preventing warping by layering two thinner pieces of wood using Gorilla glue and overnight clamping—with the grain rotated 90 degrees between the two pieces.

For example…

Coaster Madness

Up to now I’ve only used Glowforge-approved PG material in my Glowforge Basic. But, then I was drawn in by a post here about a “sale” by Woodchuck’s Wood. Not the best experience. After cancelling the order they shipped me a stack of 1/4" and 1/8" cherry and walnut boards anyway. Below is what I did with the stack of wood. All the coasters pictured are ~4" diameter. The “lasering” was done without any masking or pre-sanding of the rather rough walnut and cherry boards. [IMG_20181007_10060…