3DTechDesign
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Here is an animated fan for Unity 5 , Unreal 4 and the Blenders Game Engine.
Blendfile Layers:
Layer 1- Grouped objects
Layer 10- The fan components
Layer 20- Bake-settup for baking some seamless textures for the grid. Thought this could be interesting so i don't delete this layer.
Demo Video: https://www.youtube.com/watch?v=5-ADSn4AmHw
If you wanna use this model for non commercial projects so check this link: https://www.cgtrader.com/free-3d-models/electronics/other/fan-with-animation
Animated Fan Unitypackage : https://www.youtube.com/watch?v=o-8T--tYWLM Animated
Fan Unreal 4 Zip: https://www.youtube.com/watch?v=RATPrcEJeA0