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Trying to find Raspberry Pi case that has fan and fits RTC chip.

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I have a 8gig raspberry pi that I ultimately want to run with a fan and also include a RTC chip.

I purchased a Mluzei case that includes a fan. Miuzei Raspberry Pi Case

Due to the fact that using StellarMate with my travel router results in a time mismatch I purchased a RTC chip that I made sure would not borrow connector plug in slots. I picked up a set of DS3231 RTC chips. DS3231 RTC

What I didn’t count on was that there was a clearance issue between the RTC and the fan inside the case.

I haven’t completely given up on this combination working but the way the modular Miuzei case is put together requires the last layer to hold in the raspberry pi board, which would make adding a makeshift spacer layer a little iffy.

By any chance would there be a recommended pi case that might alleviate the spacing issue? Would there be any other better solution?
1 month 3 weeks ago #85138

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I have used this case (www.amazon.com/gp/product/B07D3S4KBK/ref..._title?ie=UTF8&psc=1) with a fan and RTC. It worked for me although you do have to use the alternate pins for the fan power connection since the RTC usually sits right there.
Fred

Celestron EdgeHD 11 with Moonlite CHL Large 2.5" Format Focuser
Radian 61 with Radian Focuser
iOptron CEM120EC/CEM26EC
Main Camera: ASI6200MM Pro
Guide Camera: ASI174MM
OAG: ZWO OAG-L
Filterwheel: ZWO EFW (7x2")
PegasusAstro Ultimate Powerbox V2
Raspberry Pi 4, 8GB running Stellarmate
1 month 3 weeks ago #85141

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Not exactly what you are looking for, but I think that it will be a fine solution (I'm using one since 6 months ago, and I'm delighted)

shop.astrojolo.com/astrolink-4-pi/
1 month 3 weeks ago #85162

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Hi Fred,

The Pi case that you use looks great, but it doesn't look to have more clearance than what I have. Based on your positive experience in fitting a RTC and fan however I would say it would be worth while for me trying this out. My RTC just doesn't fit between the fan with my case.

Thank you,

Paul
1 month 3 weeks ago #85182

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Rafa; that looks like a very interesting case that already has a lot of helpful internal and external components. It is something like this that might compete with the ASIAIR. I will certainly keep this in mind.

Paul
The following user(s) said Thank You: Rafa Barberá
1 month 3 weeks ago #85183

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Hi Paul,

In my set up, when I had the RTC board on the pins - it occupied the first few pins - a bit a way from where the fan mounts on this enclosure. Also, on some of the plastic enclosure lids, you can move the fan a bit by tapping the screws into the plastic elsewhere if needed - just keep the fan positioned so it can vent properly.

Fred
Fred

Celestron EdgeHD 11 with Moonlite CHL Large 2.5" Format Focuser
Radian 61 with Radian Focuser
iOptron CEM120EC/CEM26EC
Main Camera: ASI6200MM Pro
Guide Camera: ASI174MM
OAG: ZWO OAG-L
Filterwheel: ZWO EFW (7x2")
PegasusAstro Ultimate Powerbox V2
Raspberry Pi 4, 8GB running Stellarmate
The following user(s) said Thank You: Paul Imm
1 month 3 weeks ago #85184

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Fred; I'm going to give this a try.

Thank you and I will see whether adjustments are necessary when my case arrives.

Crossing my fingers.
1 month 3 weeks ago #85186

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I glued my fan to the outside of the case and drilled a hole so I could take power from the GPIO header. Isn't pretty - definitely not a nicely integrated package - but it works, and it didn't require me to use any parts other than what I had on hand. Once the fan dies, I'll probably epoxy some nuts to the inside so I can just use screws to hold the fan on.
1 month 3 weeks ago #85187

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Frederick: Unless I am doing something wrong, I am running into the same issue with the iUNiKER case as I did with the Mluzei case.

Evidently there is a different way of installing the RTC chip or your RTC is lower profile. I will insert a photo of the way this is fitting; perhaps this will reveal why this isn't working properly.

1 month 2 weeks ago #85303
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I had a similar problem once (although not the same). What I did was to mount the fan to the top using the vent holes to screw into rather than the mounting pins that are molded into the top. That way you can position the fan away from the pins (and the RTC) yet still have it positioned over the holes for ventilation. I think the screws that came with the fan kit are of sufficient size that they will find a good grip in the vent holes.

Sorry this hasn't worked out of the box.
Fred

Celestron EdgeHD 11 with Moonlite CHL Large 2.5" Format Focuser
Radian 61 with Radian Focuser
iOptron CEM120EC/CEM26EC
Main Camera: ASI6200MM Pro
Guide Camera: ASI174MM
OAG: ZWO OAG-L
Filterwheel: ZWO EFW (7x2")
PegasusAstro Ultimate Powerbox V2
Raspberry Pi 4, 8GB running Stellarmate
1 month 2 weeks ago #85305

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Fred,

No worries. I was hoping that there might be clearance in the necessary area, but at least I know now.

I am not super rushed for finding an answer. This is kind of a side project at the moment, but I will want to have the Pi fan fully enclosed just for the sake of how my telescope cover would possibly catch on the fan, as it occasionally does with cables.

I have considered the use of spacers to clear the RTC chip by moving up the fan, but I haven't seen how it would work with the cases that I have. It would be nice if a case existed however with adequate clearance.
1 month 2 weeks ago #85313

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Hi Paul,

I found the old top to the RPi case (the same one you purchased) with the fan still mounted - I've attached a photo. You'll see two of the standard fan mounting pegs above where the fan is mounted - obviously not being used in order to provide clearance for the RTC. If I recall correctly, I may have had to clip/grind the other two pegs down so I could move the fan. The four screws go into the vent slots and firmly hold the fan inside the case. The cover fits just fine with the fan inside the case, not mounted outside and not interfering with the case closing all the way.

Good luck on the project.
Fred

Celestron EdgeHD 11 with Moonlite CHL Large 2.5" Format Focuser
Radian 61 with Radian Focuser
iOptron CEM120EC/CEM26EC
Main Camera: ASI6200MM Pro
Guide Camera: ASI174MM
OAG: ZWO OAG-L
Filterwheel: ZWO EFW (7x2")
PegasusAstro Ultimate Powerbox V2
Raspberry Pi 4, 8GB running Stellarmate
The following user(s) said Thank You: Paul Imm
1 month 2 weeks ago #85315
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