The cutout for the SD card in the wooden case of the Flashforge Creator is much larger than the the SD card reader inside. If you miss the reader, the card can fall into the case. This piece fits into the slot, better guiding the card into the reader. I don't know how consistent the reader placement is across different Flashforge units, so YMMV.
The flanges on the tabs were meant to catch on the inside of the plywood, to keep it in place, but they're too small. Fortunately, it is wide enough that it fits snugly into the slot without slipping back out.
SD_Card_Guide.stl | 30.8KB |