I recently got some slate coasters from Amazon and thought it would be cool to engrave them. The images came out awesome with the setting I found in the community.
The only problem I am having is centering. If I place more than one coaster on the tray, the center one comes out perfect but the ones on the sides are off center to the middle of the bed. I tried 2 sets. Square and round. The first set, square ones, were placed 3x side by side. The center one was perfect. The left one was a little to the right and the right one was a little to the left. The round ones were placed square. 2x2. They all came out offset to the center of the bed. They all hit the coasters just fine with no overlap but weren’t centered.
Could this be a focus height issue? I’m new to the laser thing and am having a hard time with non Prograde items.