Anycubic Vyper / Klipper Expander Case
https://www.amazon.de/dp/B0836C9PWR?psc=1&ref=ppx_yo2ov_dt_b_product_details
https://www.amazon.de/dp/B00HE5MUWK?psc=1&ref=ppx_yo2ov_dt_b_product_details
https://www.amazon.de/dp/B084DS988D?psc=1&ref=ppx_yo2ov_dt_b_product_details
https://www.amazon.de/dp/B071HP9NJD?psc=1&ref=ppx_yo2ov_dt_b_product_details
The author marked this model as their own original creation.