Female coldshoe shim
This was designed to add some grip and clamping pressure to a bare female cold shoe, when an accessory doesn't use a screw-down mounting clamp, like the DJI Mic 2/3 clip
Print: 2x parts per cold shoe. 0.2mm nozzle recommended.
Install: with glue, right up against the outside edges of the interior of the mount. (Ideally more neatly than I did, but they're fiddly things to handle, especially printed in PETG HF.)
Two versions, solid and hollow.
Pictured is the solid version as the hollow one had a bit too much squish for my use case
Designed for ISO-518-2006