Body caps · AirTag
ARRI PL body cap with an AirTag inside
An ARRI PL body cap with an Apple AirTag inside. The tag snaps into a pocket behind the face and stays hidden while the cap is on, so a camera body left on set or in a rental case shows up in Find My.
Not print-tested on an ARRI PL camera yet. Your files include a fit test ring: print it first (about 11 min), it shows on your camera whether the locking ring closes and the cap sits firmly. Open the generator
One part, no screws
The pocket wall is one closed ring. Three segments of it, joined at both ends and backed by a slot, flex as the AirTag passes and then keep pressing on it, so it clicks in and cannot shift. A notch lets you lift it out again with a fingernail.
Hidden behind the face
The white side of the AirTag faces outwards behind a 1.2 mm face, and the pocket opens towards the camera, so the tag is out of sight while the cap is on. Check that it sits flat and firm before you put the cap on.
Same size where it counts
The pocket fits inside the register, so the cap stays 13.4 mm tall and reaches no deeper into the camera than without it (4 mm).
Same port cap
The cap does not turn. Open the camera's PL locking ring, set the cap in with one of the four notches in its flanges on the locating pin and close the ring: it clamps the four flanges like a lens. That gives four positions; the notch next to the grooved grip mark keeps the face upright. Break-off supports under the flanges are built in: keep slicer supports off.
Fits
- PL-mount cinema cameras from ARRI, Sony (VENICE), RED, Blackmagic Design and others
- PL adapters with a locking ring for mirrorless cameras, e.g. PL to Sony E, Canon RF, L-Mount or MFT
| Mount | ARRI PL |
|---|---|
| Outside diameter | Ø68.4 mm over the flanges, Ø63.2 mm grip |
| Height | 13.4 mm |
| Depth in the camera | 4 mm behind the mount face |
| Holds by | Four flanges under the PL locking ring, four notch positions on the locating pin |
| Grip | Module 0.8 gear (77 teeth) or flutes |
| AirTag | Apple AirTag (not included), snap-in, pocket opens towards the camera |
| Print orientation | Face down, break-off supports built in (slicer supports off) |
| Print time (slicer estimate) | about 33 min, about 16 g PLA |
| Fit test ring | Included with paid files, about 11 min |
| Files | 3MF (body + face inlay as one object), aligned STLs, printing guide |
Print times are Bambu Studio estimates for an X1C with a 0.4 mm nozzle and 0.20 mm layers. Not every camera has been tested: print the fit test ring from your files first and try it on your camera.
Print and fit
- Check the fit first: your files include a fit test ring, the flange zone only, done in about 11 min. Print it before the cap.
- Open the camera's PL locking ring, set the cap or test ring in with a notch on the locating pin and close the locking ring. It should close fully and hold it without play.
- Print the cap face down with slicer supports off: the four arcs in the file carry the flanges. Snap them off and clean the underside of the flanges. Two-colour faces: keep body and inlay as one object and give each part a filament.
- Clean the inside before the first use: remove strings and crumbs, rinse, let it dry and blow it out. It faces the sensor.
- Press the AirTag in, white side towards the face, until the three nubs click. Before every use, check that it sits flat and firm.
Questions
How is the AirTag held without screws or glue?
By a closed snap ring: three segments flex slightly as the AirTag passes, then their nubs keep pressing on it above its widest point. If the click is too stiff or too loose on your printer, write to us and we send a different nub size.
Which way does the AirTag face?
White side towards the face, behind 1.2 mm of plastic. The pocket opens towards the camera and is hidden while the cap is on. Before every use, check that the AirTag sits flat and all three nubs have clicked: the inside of the cap faces the sensor.
Does the AirTag still work inside the cap?
AirTags work through plastic, and the white side faces outwards behind a thin face. On the camera the body's metal sits behind it; range depends on what is around, as with any AirTag.
Which cameras does the ARRI PL AirTag body cap fit?
PL-mount cinema cameras from ARRI, Sony (VENICE), RED, Blackmagic Design and others; PL adapters with a locking ring for mirrorless cameras, e.g. PL to Sony E, Canon RF, L-Mount or MFT.
Has this ARRI PL body cap been tested on a camera?
Not yet. Its flanges are measured from two PL port caps and our PL rear cap that fit real cameras and lenses, and every file is checked layer by layer for printability, but we have not fitted this cap on an ARRI PL camera ourselves yet. Print the fit test ring from your files first: it is done in about 11 min and shows on your camera whether the locking ring closes and the cap sits firmly. Too tight or too loose? Tell us: the flange thickness is adjustable.
Is it safe for the camera's sensor?
It reaches no deeper into the camera than a lens's own mount: 4 mm behind the mount face. The inside faces the sensor, so remove every string and crumb, rinse the cap, let it dry and blow it out before the first use. Never use a cap with cracked flanges.
Does it need supports?
Not from your slicer: keep slicer supports off. The file brings four break-off arcs under the flanges, one 0.2 mm layer below them and touching nothing else. Pull them off after printing and clean the underside of the flanges, where the locking ring clamps.
Which filament should I use?
Rings without clamps and lens caps: PLA or PETG, 0.4 mm nozzle, 0.20 mm layers, your usual walls. PETG is a little tougher if the cap lives in a bag.
Why gear teeth on a body cap?
They are the same module 0.8 teeth as our focus rings: they grip well with gloves and hide layer lines. Prefer something smoother? Pick the flutes grip.
Does it fit ARRI LPL?
No. LPL is a larger mount with its own bayonet; this cap is for the PL mount and PL adapters.
What does it cost?
One price per file: the AirTag pocket, a label and your logo together are still one price. The AirTag itself is not included. The files include a fit test ring.
Other body caps
- ARRI PL body cap to 3D print
- Canon EF body cap with an AirTag inside
- Canon RF body cap with an AirTag inside
- Sony E body cap with an AirTag inside
- Nikon Z body cap with an AirTag inside
- Fujifilm X body cap with an AirTag inside
- L-Mount body cap with an AirTag inside
- Micro Four Thirds body cap with an AirTag inside
- Leica M body cap with an AirTag inside