How to diy a FPV with 3d printer？

1. Design and print the drone frame. You'll want to design a sturdy frame that can support the weight of the electronics and props. Plastic like PLA or PETG works well for 3D printing drone parts.

2. Assemble the flight components. This includes the ESC (electronic speed controller), motors, flight controller, battery, props, etc.

3. Choose and mount the camera. You'll need a camera that can transmit a live video feed, like a nano cam or tiny FPV cam. Mount the camera securely to the frame.

4. Add the video transmitter. This connects to the camera and transmits the video feed to your goggles. Mount the transmitter to the frame.

5. Assemble the antenna. Connect a circular polarized antenna to the video transmitter and mount it to the frame.

6. Connect the video receiver. This connects to your goggles or monitor and receives the video feed from the transmitter.

7. Connect the battery. Use a balanced charger to charge the LiPo battery and connect it to the flight components.

8. Pair the video transmitter and receiver. Make sure they are on the same channel to establish the video link.

9. Test the drone. Make sure all components are secure, props are balanced, and the video link is working before your first flight.

10. Have fun flying FPV! Start with short, slow and low flights to get familiar with flying using the video feed.