The Mellow Fly Puppet is an interesting controller board: It works with a Raspberry Pi Pico controller and allows the usage of Raspberry Pi CM4, as well as other Raspberry boards. 

However, the only details to the controller can be shown on the AliExpress Sales Page at: https://www.aliexpress.com/item/1005004491731502.html . There are no CAD models of the board, so I reengineered it to build my own controller cases for it. 

I hope this helps you to get forward with building your own Mellow Fly Puppet cases. 

Files: 

• Mellow_Fly_Puppet_v7  - Just the Board without any Raspberries 
• Mellow_Fly_Puppet_with_cm4_v7 - The Mellow Fly Pupppet with a CM4 and a slim line passive cooler. 
• mellowfly_puppet v7.f3d - The fusion 360 archive if you want to modify it.