base adaptator 42x75 (43x76) oval round to 30x60 square

Base adaptator : 42x75mm (42x76mm) oval round to 30x60mm square. WARNING : this is automatic Oval, i don't know if it's really compatible with GW bases. I hope so. Someone will test one day, and probably let us know. Model created in tinkercad. very simple, not tested. [Edit 2025-11-23 : change licence to BY. you can sold them if you want... was wondering about CC0... so... enjoy ;)]