I made two objects, one a 3"x4"x.062" stencil with my grandson's name, the other a 4"x5"x.093" envelope with grandma and grandpa as the return address and my grandson's complete name and address on it (all with raised lettering bringing the total height to .125". Both had a smallish amount of curl on the front/left corner. Not much by any means, but I know it's there. Nobody I show it to will notice it as they won't be looking at it with the same critical eye that I'm looking at it.

There is nothing to be seen in the way of curl on the gift box. There is no curl to be seen at the bottom of the supports for the 3" sphere I'm currently printing.