derek_hill•3d agoProlific Poster

Vent: My drone mapping project in Phoenix was off by 8 feet until I tried this simple fix

I was using a standard consumer drone for site surveys on a small commercial lot. The GPS drift was so bad the 3D model was useless for accurate grading plans. A surveyor on site told me to just lay down four cheap, high-visibility ground control points myself before each flight. I used 2x2 foot orange vinyl squares from a hardware store, weighted with rocks. My next model aligned perfectly with the surveyor's data. Has anyone else found a good DIY marker that holds up in wind?

3 comments

3 Comments

skyler_robinson23d ago

I always thought you needed fancy gear for that... but those vinyl squares are a total game changer.

jake_patel2d ago

Forget the fancy gear, right? @charles706 is onto something with that DIY spirit. Vinyl squares are cheap and they just work. Makes you wonder what else we've been overpaying for.

charles7062d ago

Hey @skyler_robinson2, try cutting up an old traffic vest and duct-taping the pieces to some pavers.