**These are not designed for the PiDrive Red Edition. They are designed for the earlier black pi1541 PiDrive. **
I have tested this design with a 3b and 3b+ RaspberryPi.
Finally have a case designed for my, slightly different, pi1541 hat. They are 100% infill so they are really strong. These cases snap together so no screws are needed to hold it. You may want to add a spacer between the hat and the RaspberryPi.