Zooxxx ((exclusive)) -

The tolerances in these projects are minimal. Specialized manufacturing processes are utilized to ensure that each piece fits with absolute precision, often involving high-grade plastics or composite materials.

The main challenge in designing a puzzle of this magnitude is preventing the "pops" (pieces flying out) or internal "locks" that make it impossible to solve. The Zoox19 is lauded as one of the most reliable in its class due to advanced internal mechanisms. zooxxx

Due to the fragility of such a large puzzle, proper handling and storage are key to long-term reliability. Conclusion The tolerances in these projects are minimal