DJI Mini 4 Pro landing gear extensions clip-on
A set of four clip-on leg extensions for the DJI Mini 4 Pro and Mini 3 Pro that raise the airframe 35 mm so the downward vision sensors and gimbal stay out of long grass, wet sand and gravel on take-off. The Mini's front arms are roughly 12 x 10 mm and the rear arms slightly slimmer, so each clip has a matching channel with 0.3 mm clearance and 1.2 mm flexible lips that snap on and off without tools, and a flared 20 mm foot with a 45 degree chamfer to stop it sinking into soft ground. Each extension weighs about 2 g, keeping the drone under the 249 g limit. Print them upright in PETG with 1.6 mm walls; TPU also works for the lips.
Arm profiles change between drone generations, and a download for the Mini 2 will not snap on. Give SpeakCAD your arm cross-sections, preview the legs in the browser without paying, adjust the lip tension in the chat and download the STL.
Design four clip-on landing gear extensions for a DJI Mini 4 Pro, each with a 12.3 x 10.3 mm channel and 0.3 mm clearance, 1.2 mm snap lips, a 35 mm leg tapering to a 20 mm diameter chamfered foot, 1.6 mm walls, hollow core to weigh under 2.5 g each.