Bambu A1 Heat Bed Build Plate Limiters

The two small positioning points on the original Bambu Lab A1 build plate are unreliable. Positioning the build plate often requires many attempts, and there is even a risk of scratching the screen. Many existing designs have various flaws; I even purchased two different types, each with drawbacks. Thus, I decided to design my own, incorporating the best features from various designs. After repeated adjustments to the dimensions, I've achieved the current state, and testing shows that as long as the build plate aligns with the center of the original machine and these two printed limiters, precise and effortless positioning is guaranteed.