Here is a clock I made on our Glowforge Pro for our RV. The clock face and the back plates are made with 1/8" Baltic Birch, the sides are 1/4" Baltic Birch and the glass is 1/16" clear acrylic. The movement I picked up on Amazon. The grooves in the sides to put the clock face and acrylic on were engraved with 250/90 at 170 LPI.