Step
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Securing a Pi in a case

Sat Jun 02, 2012 7:19 pm

Im designing my own case currently to house a Pi, USB hub and HDD. Just having a bit of a problem with how i can mount it.
Currently its sat on a pair of foam blocks but im looking for a more permanent mounting method. Can anyone suggest anything?

spurious
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Re: Securing a Pi in a case

Sat Jun 02, 2012 7:37 pm

You are looking for an edge holding circuit board support with "no nose".

Step
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Re: Securing a Pi in a case

Sat Jun 02, 2012 10:38 pm

either nosed or un nosed held from underneath or using the ports to hold it in place.

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rurwin
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Re: Securing a Pi in a case

Sat Jun 02, 2012 11:13 pm

You could also clamp it from above and below. See: here

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Grumpy Mike
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Re: Securing a Pi in a case

Sun Jun 03, 2012 8:28 am

You can use a styrene H beam. The 3.2mm size fits nicely all the way down one side.
The other side it won't go past the ribbon cable connector or the HD video connector so you can either shave a bit of or only have part of that side supported.
When stuck to other styrene with model airplane glue it makes a very strong joint. You can slide the Pi in an out.
You can get it from model shops or here:-
http://www.ema-models.co.uk/index.php/p ... -4498.html
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3.2mm Styrene H beam
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HansH
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Re: Securing a Pi in a case

Sun Jun 03, 2012 10:24 am

depends a bit on what kind of material you are using.
I clamb my RPi board to the bottom case using 4 small notches above the board and the board is underneath supported.
That way you can hold it upside down.

The pcb board itself is 1.6 mm thick, but I kept 1.7mm room between the support and the notch.
the notches are it self not more than 1.5 mm width

Image
Image

Step
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Re: Securing a Pi in a case

Sun Jun 03, 2012 3:42 pm

Thanks guys i think the Styrene H Beams will be my best bet the case it self is going to be mainly wood so making 1.7mm clips would be a nighmare for me. Its a nifty solution though.

Currently working on a layout for the hub board and HD caddy. ill do some rough drawings tonight and see from there

HansH
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Re: Securing a Pi in a case

Sun Jun 03, 2012 9:32 pm

Just take some small wooden blocks and make a groove in it with a saw...

Post some pictures when you finish it !

Step
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Re: Securing a Pi in a case

Sun Jun 03, 2012 10:53 pm

HansH wrote:Just take some small wooden blocks and make a groove in it with a saw...

Post some pictures when you finish it !

I did realise afterwards i could do that, lack of coffee id imagine. I also found some dense foam blocks i could use again adding a groove or as support

I got somewhat sidetracked this evening but ill set a few hours aside tomorrow for design work and working out the LEDs and resistors to show of the Pi in its case.

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gruso
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Re: Securing a Pi in a case

Mon Jun 04, 2012 12:13 am

I'm using standard PCB standoffs & screws (metal), with some plastic washers. Like this:

Image

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Ray_GTI-R
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Re: Securing a Pi in a case

Tue Jun 05, 2012 12:27 am

gruso:- I like :)
Mechanically may I offer the following minor change ... add another, notched nylon washer in between the existing ones. That should align the top & bottom washers flat against each other rather than deform when tightened and help firm-up the contact with the edges of the RPi board for a tighter fit. See:-

Image

Note that these notched washers should self-align if made roughly accurately and assembled fairly carefully ;)

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gruso
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Re: Securing a Pi in a case

Tue Jun 05, 2012 3:32 am

Nice idea, I may just do that! It will have the added bonus of making the whole thing a bit easier to assemble, too (it's very fiddly lifting up the top washer to slide the board in, one corner at a time).

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mxcum167
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Re: Securing a Pi in a case

Tue Jun 05, 2012 9:17 am

I like the idea of this method of securing the RPi. You can also get threaded spacers. http://www.maplin.co.uk/hexagonal-threaded-spacer-29864
These will be useful for those who intend getting or have got multiple RPi's, as you could stack them :)
Martin www.chez-cummings.com

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fodi
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Re: Securing a Pi in a case

Thu Jun 14, 2012 2:17 pm

what you think about these pcb holders? they are available on ebay for about 7 usd
they have enough size and can be screwed to the case as well, with allowing the removal of the pi
Image

alexisread
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Re: Securing a Pi in a case

Sat Jun 16, 2012 7:44 pm

Hi, I'm a little late to the party, but have you considered something like the raspberry sandwich?

http://elinux.org/images/0/0c/Raspberry ... ch-1-0.pdf

I'm not sure whether the dimensions are exact as I don't have a Pi yet, but you could experiment with that design and different materials!

Regards,
Alexis

Step
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Location: milton keynes

Re: Securing a Pi in a case

Sun Jun 17, 2012 6:56 pm

alexisread wrote:Hi, I'm a little late to the party, but have you considered something like the raspberry sandwich?

http://elinux.org/images/0/0c/Raspberry ... ch-1-0.pdf

I'm not sure whether the dimensions are exact as I don't have a Pi yet, but you could experiment with that design and different materials!

Regards,
Alexis
Never to late, i ended up ordering these PCB rails in the end should arrive Thursday so ill let you know how they are but measurements seem fine

http://uk.rs-online.com/web/p/pcb-processing/5073609/


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