Portsdown 4 enclosure options?

[G4GHD]

I've recently built a Portsdown 4 and am using the 7" screen as mentioned by Gareth G4XAT on page 24 of CQ-TV 289.
Unfortunately this screen has different mounting point spacings from the official Pi 7" touchscreen, which would appear to rule out the SmartiPi Touch 2 Case, which has been mentioned on the forum previously. Any other suggestions? FWIW, the screen's horizontal mounting holes are spaced approx. 155mm apart, while the vertical spacing is about 93mm.

[g0mjw]

I would suggest a 3D printed case. I have been working on a design with Colin, G4KLB. We can send you the STL files.

Screenshot 2025-10-20 125511.png (23.21 KiB) Viewed 477 times

Mounting the screen is easy, it just requires two brackets making, one for either side to fit to the case. You can either 3D print something or just bend a sheet of aluminium.

Screenshot 2025-10-20 125256.png (63.62 KiB) Viewed 477 times

Mike

[G4GHD]

Thanks Mike, looks good, but regrettably I don't have a 3D printer myself.

[radiogareth]

How about one of these, but mounted on its back, ie standing upright and 'looking up at you'?
https://www.ebay.co.uk/itm/406288742719
or something like this?
https://www.tme.eu/gb/details/g1507/des ... es/gainta/
I googled "console instrument case" which throws up several options.
Gareth

[G4GHD]

Thanks Gareth,
that first one looks like a contender, but I'm not sure if heat and ventilation will be a problem in that orientation.

[radiogareth]

I've used a small fan and in/out vents on my first one, nothing on the second but used a clamshell wraparound passive heatsink and sprayed the box inside with nickel spray to keep the RFI in. Very little temp difference reported between them. Use decent stick-on heatsinks and it will be fine. If it overheats the height would give good convection with a few well placed holes.
Gareth

[G4GHD]

Thanks again Gareth, that's good to hear.