While developing a yet-to-be-released SNACK drawer, I have found that the locking lugs on the model provided by Framework do not hold up well when printed in PLA on an FFF printer (even with 0.1mm layer heights). As such, I have found it necessary to bulk the lugs up a bit so the card doesn’t slide out so easily.
Here is a model with the self-tapping screw holes modified with the bulkier lugs (+0.2mm taller, extended into the side to be flush with the USB-C hole). Enjoy!
expansionCardSelf-tappingBulkyLugs.stl (206.6 KB)