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blachanc
Posts: 456
Joined: Sat Jan 26, 2013 5:03 am
Location: Quebec,canada(french)

Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 4:26 pm

Hi All,

Short story:
Is there an official spec for the screw to be used if you want to screw the PI4 to the official PI4 case bottom part?

Long story:
I just received my RPI4 4Gb ram & official case.

I have to admit that I failed to look into the details of the new RPI foundation case for the PI4 before buying it.
I was expecting a part of the lid to come off just like it is for the RPI3 official case, preventing the board from falling from the case.
Well, It is not the case (no pun intended).

I am now planning to use the case without the cover, but I would like to screw the PI4 to the bottom of the case (the red part), to keep the board in place.

Official_RPI3_case_link

Official_RPI4_case_link
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W. H. Heydt
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Location: Vallejo, CA (US)

Re: Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 5:00 pm

It's not designed to need screws. You'd have to drill out the posts the PCB mounts on. The holes in the PCB are designed for a 2.5M machine screw.

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blachanc
Posts: 456
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Location: Quebec,canada(french)

Re: Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 6:25 pm

W. H. Heydt wrote:
Wed Aug 28, 2019 5:00 pm
It's not designed to need screws. You'd have to drill out the posts the PCB mounts on. The holes in the PCB are designed for a 2.5M machine screw.
Thx,

I was hoping to avoid any "customization" work, using tiny screws for plastic to secure the PI board into the posts.
If I need to take the drill out, and remove the posts, I will install custom stand-off to maintain the port alignment.
This is not my preferred solution, but this is what you get from ordering something without looking at the actual spec ;)

Ben
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cruster
Posts: 117
Joined: Mon Sep 01, 2014 7:56 pm

Re: Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 7:16 pm

The mounting holes in the Pi (2.7mm) are designed to take 2.5mm fasteners. But there is sufficient "meat" around the pads to carefully drill them out to 3mm.

jbudd
Posts: 996
Joined: Mon Dec 16, 2013 10:23 am

Re: Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 7:19 pm

Hot melt glue?

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Imperf3kt
Posts: 2785
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Location: Australia

Re: Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 9:58 pm

I would second the hot glue method.

Failing that, a short 2.5mm screw plus nylon washer?
Drill a small pilot hole in the plastic first or you'll split it. (assumed since Ido not oen any Pi case. Based on my knowledge of plastics)
55:55:44:44:4C
52:4C:52:42:41

cruster
Posts: 117
Joined: Mon Sep 01, 2014 7:56 pm

Re: Official Raspberry Pi 4 Case (screw spec ?)

Wed Aug 28, 2019 11:16 pm

blachanc wrote:
Wed Aug 28, 2019 4:26 pm
Hi All,

Short story:
Is there an official spec for the screw to be used if you want to screw the PI4 to the official PI4 case bottom part?

Long story:
I just received my RPI4 4Gb ram & official case.

I have to admit that I failed to look into the details of the new RPI foundation case for the PI4 before buying it.
I was expecting a part of the lid to come off just like it is for the RPI3 official case, preventing the board from falling from the case.
Well, It is not the case (no pun intended).

I am now planning to use the case without the cover, but I would like to screw the PI4 to the bottom of the case (the red part), to keep the board in place.

Official_RPI3_case_link

Official_RPI4_case_link
Just to throw a curve ball in here. Consider mounting the Pi4 "naked" preferably on edge so it's cooled by natural convection. If your application can't use active cooling &/or heatsinks or some other combination.

The badly thought through (imho) official Pi4 case, won't go anyway to cooling this particuar hot running iteration.
https://www.raspberrypi.org/products/ra ... pi-4-case/ it happily encloses & cooks all the components. Bad!

ProDigit
Posts: 374
Joined: Tue Aug 30, 2011 1:24 am

Re: Official Raspberry Pi 4 Case (screw spec ?)

Thu Aug 29, 2019 12:11 am

you could stick it with dual sided thermal tape, or regular dual sided tape.

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blachanc
Posts: 456
Joined: Sat Jan 26, 2013 5:03 am
Location: Quebec,canada(french)

Re: Official Raspberry Pi 4 Case (screw spec ?)

Fri Aug 30, 2019 2:21 am

Finally,

I ended up creating a weak rivet by driving a screw from a servo kit in the hollow of the two post opposite of the ports side. The port side is held in place by the connectors.

Thank you for your suggestions.!!
Ben
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splangie
Posts: 10
Joined: Fri Feb 01, 2019 3:58 am

Re: Official Raspberry Pi 4 Case (screw spec ?)

Sun Oct 13, 2019 12:35 am

The badly thought through (imho) official Pi4 case, won't go anyway to cooling this particuar hot running iteration.
https://www.raspberrypi.org/products/ra ... pi-4-case/ it happily encloses & cooks all the components. Bad!
I agree. This was a bad one. I picked up the Micro Connectors cpu sink/fan and put a bunch of holes in the case. Now it's ok.

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