Gear keychain

🔧 Gear Keychain – 3D Print ModelThis keychain with rotating gears combines design and mechanical function.The model is fully print-ready – no scaling or supports needed.⚙️ Notes:STL files are provided at optimal size.If you scale down the model, the upper part might become too thin, so please be careful when resizing.The gears can rotate freely and work as shown in the preview.💡 Background:The original version of this model was created for the Design and Engineering Fair (Tehnicoolum) as part of an exhibition.This uploaded version does not include the text engraving and is suitable for general use and sharing.📄 License:This model is free for use and commercial sale – you can print, modify, and sell printed versions without restrictions.