Introducing the TPU Eraser, a residue remover crafted with unwavering precision to vanquish the elusive remnants left behind by the TPUs on the sacred grounds of the build plate.

Anticipating meager results, I embarked upon this endeavor, only to be astounded by its formidable efficacy in obliterating any lingering traces. The sheer efficiency of its end result compelled me to share this innovation with the world, for its prowess deserves wider acclaim. 

Meticulous attention was dedicated to its design, ensuring its dimensions and structure resonates harmoniously with the very fabric of the 3D printing universe and the inherent essence of its creations.

The recommended hardness for optimal results is achieved by printing the TPU Eraser in 40D TPU. This carefully chosen degree of firmness ensures a superior performance in eradicating even the most delicate residues of soft TPU.

When configuring the print settings, a gyroid infill of approximately 20% and the implementation of 4 walls prove to be adequate for achieving exceptional outcomes. These parameters, which have been personally employed and validated during my own printing endeavors, ensure a reliable and consistent user experience. Additionally, I found printing it lying flat to be advantageous, although intrepid experimenters are encouraged to explore alternative orientations, unveiling the boundless realm of possibilities.