Was repairing an older PC and didn't have the specific drive bay cover. I was hoping to find a generic one on thingiverse but everything was either made to clip into a specific case or was an adapter for something else.
Made this real quick and it got the job done. Simple plate in the front and minimal structure extending into the bay to reach the first screw holes. Now I can print generic covers for any case.
Included the Sketchup file in case anyone wants to mod this. I made the plate dimensions a tiny bit small because I didn't want to reprint or sand down for this particular job. In the end, the covers fit well, but could probably be made a little bigger for a more snug fit.
Stick the cover in the bay. Rails are towards the bottom. Line up one of the 2 holes on each side and use screws to attach. The holes are small so the screws can bite into the plastic.
2 bottom layers
2 top layers