Hi. I've had a look at the official spec document for hat+: https://datasheets.raspberrypi.com/hat/ ... cation.pdf
There seems to have been no official step file released for the pi5's case (could we maybe have one please?), so I've measured its hat aperture with some calipers. The official case has three main pieces that snap together; a base piece, a middle piece that goes around the ports and locks in the pi5 pcb and a cap that goes on top and protects the contents. I find the the ~1mm gap around the whole edge of the cap a particularly nice design touch to allow for airflow while still offering very good protection.
The hat+ spec allows for 65.0 mm long hats. The case has a 65.0 mm long hole in the top to allow hats to fit in the case. Okay, that's a bit weird, there's zero margin/tolerance there, but it might work alright if you file down a hat PCB's edges a bit or something. A real problem arises though because the official case's cap piece clips on on the inside edge of the hat aperture. So the official case cap's clips interfere with where spec compliant hat+s are allowed to live. Meaning you seemingly have to choose if you want to install a hat or have a case without a protective cap.
Can anyone confirm this? Perhaps those of you with official Raspberry Pi M.2 HAT+s already in hand (which seem to follow the hat+ spec closely), could you please try to put it in the official case and try to attach the case's cap and report back here if that works?
To the raspberrypi org/com/foundation folks who read here: Is this a design oversight? Will there be a new official case revision or a new revision of the hat+ spec to address the mechanical incompatibility?
There seems to have been no official step file released for the pi5's case (could we maybe have one please?), so I've measured its hat aperture with some calipers. The official case has three main pieces that snap together; a base piece, a middle piece that goes around the ports and locks in the pi5 pcb and a cap that goes on top and protects the contents. I find the the ~1mm gap around the whole edge of the cap a particularly nice design touch to allow for airflow while still offering very good protection.
The hat+ spec allows for 65.0 mm long hats. The case has a 65.0 mm long hole in the top to allow hats to fit in the case. Okay, that's a bit weird, there's zero margin/tolerance there, but it might work alright if you file down a hat PCB's edges a bit or something. A real problem arises though because the official case's cap piece clips on on the inside edge of the hat aperture. So the official case cap's clips interfere with where spec compliant hat+s are allowed to live. Meaning you seemingly have to choose if you want to install a hat or have a case without a protective cap.
Can anyone confirm this? Perhaps those of you with official Raspberry Pi M.2 HAT+s already in hand (which seem to follow the hat+ spec closely), could you please try to put it in the official case and try to attach the case's cap and report back here if that works?
To the raspberrypi org/com/foundation folks who read here: Is this a design oversight? Will there be a new official case revision or a new revision of the hat+ spec to address the mechanical incompatibility?
Statistics: Posted by greyltc — Wed May 22, 2024 9:44 pm