Lithophane T Frame support

Lithophane T Frame stabilizer. I print lithophanes with a 4mm border for a custom box that I make. I make these up to 9" tall. For the best quality its important that the lithophane remain steady as the print gets taller. With my constraints of the frame the brim wasn't enough to eliminate wobble higher up in the print. After many attempts this was the solution. I have these in three heights and use 8x3 magnets to get them to hold down on the build plate. With two of clips on each tower