Budget FPV Drone

Created by [@karnx] • Started on March 20, 2024

6s analog fpv drone build on budget. i made the fpv goggles frame.

journal

Day 1, 28 July 2025 (4 hours)

-started with fpv drone. researched abt analog fpv. looked at digital too but parts expensive so dropped it. decided to make 6s analog drone for better power and efficiency.
-decided on using geprc mark 4 5frame (carbon). looked strong and good layout. -picking speedy bee f405 v4 stack. includes fc + esc, supports 6s. liked the layout and price. -using ECO II 2207 1700kv motors. 4 of them. -picked happymodel ep1 for receiver (elrs). -props are 3 blade 5. generic.
-started spreadsheet for all parts and links here
-very stress. im also doing gemini, summer of making, jumpstart. might also do grounded with this.

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Day 2, 29 July 2025(4hours)

-started cad. -checked dimensions for fc, esc, and camera mounts.
-tested fit for battery strap, xt60, antenna mount.
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Day 3, 30 July 2025(4 hours)

-finished with cad. cad of drone was pretty easy. now im starting with goggles. i started making goggles. it was hard so this is what my first attempt looked like- -i didnt fully finish it because i decided to change the screen size. im using 2 lenses of 45mm diameter. the focal length or whatever is about 75mm. for the receiver im using rx5808 with a 5car monitor that im gonna be tearing down. 1178height=835alt=imagesrc=https://github.com/user-attachments/assets/d4cce5f2-b8e3-4498-9c81-81989ef47f5e/> 580height=340alt=imagesrc=https://github.com/user-attachments/assets/09a296dc-0bdc-40c1-adb3-e4f8cfaecddb" />

Day 3, 31 July 2025(4 hours)

-made another version of the goggles. this time im using the 5screen. i had to make another as the old one i was using 4.3 screen. so this is what it looks like- -the goggles also have holes for strap. image image