After my temporary encoder disk broke and my lovely g27 stopped working again - I decided to make something solid. This beauty printed by SLA plastic with 0.01mm resolution. Used soldering iron
1 pcs 60 Slot Steering Wheel Optical Encoder For Logitechs G27 8U7Y New T1 I6P3 - Walmart.com
Steering Wheel Optical Encoder for Logitech G25/Old G27(60 Slot)DFGT Parts Metal | eBay