July 14, 2025
Description
DJI Mini 2 / Mini 4K – Paper-Clip Payload Dropper
A quick-fit, ultra-light clip that snaps onto the rear belly vents of a DJI Mini 2 or DJI Mini 4K. Slip in a regular paper-clip, bend it into a hook, tie on a light line, and you’ve got a simple pendulum release for fishing lures or bait tested with about 4-5oz could probably do a bit more
The Mini series has no accessory mount, but sometimes you just need to place or drop something exactly where you can’t reach. Commercial dropper kits are bulky or need power; this one prints in under 30 minutes, uses a household paper-clip as the sacrificial part.
Clip-on: The part grips the two longitudinal ribs under the rear intake grille—no screws, tape, or mods.
Hook: Slide a #1 (standard) or #2 paper-clip into the guiding slot and bend the long leg forward into a hook.
Fly & Drop: Fly out at 5–8 m/s. When you hover or brake, the suspended weight keeps moving (pendulum effect) and slips off the smooth hook tip, releasing cleanly. No servo, no wires.
Tested repeatedly with a 3 oz sinker + line up to est 5 oz.
| Setting | Value |
|---|---|
| Material | PETG or tough PLA (recommended) |
| Layer height | 0.2 mm |
| Infill | 25 % gyroid (strength vs. weight) |
| Supports | tree |
| Brim | Optional for adhesion |
| Print time | ≈ 20 min on k1 |
The model is one piece and needs no post-processing beyond popping it off the bed.
Check fit: Snap the clip onto the drone—it should be snug but not distort the shell.
Insert paper-clip: bend one end open and push it in until it bottoms out in the slot; bend the free end with pliers into a gentle hook.
Attach line or rig: have some sort of loop that can slide onto the paperclip weight hangs about 1m below loop
Flight tips:
Added mass shortens flight time fast.
Practice drops over soft ground first.
Use at your own risk; I’m not responsible for any crashes or fines. But if you find it handy, please post a make and drop a like!
Happy printing and safe flying!
License:
Creative Commons — Public Domain
8
Duplexed
