I really liked Robert's version of a 1U RPi rack. However i didn't have any use for the trays with LCD and LED's. The thumb screws for the tray worked great but I thought I'd like a pull handle instead.

I printed this in PETG .20mm with supports. I used M2 threaded inserts in the handle.

Robert's 1U Raspberry Pi Rack with modular trays (https://www.printables.com/model/69176-1u-raspberry-pi-rack-with-moduler-trays)

I've included a STL for a handle without the use of a threaded insert. A M3 screw should self-thread into the handle. I did not print this version so someone please let me know if the hole is an ok size.