This is a Libre Computer Renegade SBC model, remixed from a model I found on GrabCAD:

https://grabcad.com/library/raspberry-pi-3-reference-design-model-b-rpi-raspberrypi-raspberry-pi-2

You can also find an Rpi 3 model here:

https://www.thingiverse.com/thing:2106235

I added:
- IR receiver
- Heatsink clips
- 1-port USB3 port

I removed:
- CSI and DSI connectors
- Other small stuff so it's not so busy

Works well with my case remix here:

https://www.thingiverse.com/thing:6071529

Have at it!