Lithophane 3-Size Frame V2

This is an upgraded version of the 3-Size Frame in Make My Lithophane. Based on feedback, the new version of the frame has been modified as follows:The pins that required significant force for installation have been removed and replaced with elastic bosses on the sides, making installation and printing easier.A cable management slot has been added near the power cord port to reduce the risk of damage from pulling.A one-piece printed stand has been integrated into the back, reducing installation steps. The wall-mounting slot is still retained, and users who need to hang it on the wall can remove the stand by using the cut function in Bambu Studio.About the portable version:In order to meet the needs of camping and dating, or as a decoration at the market stall, a new portable version powered by dry batteries has been added. The portable version adds a place to install the battery box and potentiometer, eliminating the need to carry an extra rechargeable battery, making the overall appea