Server HDD Caddy (3.5")

I recently purchased a secondhand rackmount server from a seller on eBay. It has 10 hard drive bays but didn't come with any HDD caddies. Neither the server hardware nor the case provided any clue as to who the manufacturer was and, after doing some searching, I was unable to find other printable models with the dimensions needed to properly slot into my server. So, on the off chance that somebody else finds himself in a similar situation, here's the tray I designed for my server.

Specs:
Compatible with 3.5" hard drives.
Designed for bays that were approximately 0.75" tall and approximately 4.25" wide.
Thickness is approximately 0.1" .
Standard (counter-sunk) HDD case screws should work great with this.

I've listed the above dimensions as approximations because a small clearance was afforded for each to account for my 3D printer's inaccuracies and allow the tray to slot into the server easily.