Secures LEDs against being pushed back in to the mount, since it features little latches. Fits in an 8mm hole with at least 1.5mm material thickness

Printing is best be done with a 0.4nozzle and layerhights from 0.12-0.2mm. No support needed. PLA worked just fine with me but since the holder features little latches and has to be snaped in place, PETG might be more suitable for this job. Should also work with resin

If you have to modify the led mount to make it fit, you'll find the .step for download too
 

You'll find the 3mm LED Mount version here, the 8mm version here, and the 10mm LED Mount version here
 

CHANGE LOG 15.11.2023
Reworked the latches in order to make them slightly more robust. This might be usefull if you are underextruding or if your material is somewhat brittle. The modified latches are available with the “tight fit version”

CHANGE LOG 09.11.2023
Added a version featuring smaler tolerances in order to put the LED wiggle free in place, even if the mount is fitted in really thin sheet material