Since 2017 I've been collecting all the Lego supercars:
    Porche 911
    Bugatti Chiron
    Lamborghini Sian
    Ferarri Daytona
    McLaren P1
They were really fun to build but since then they've been sitting on a shelf in my room taking up a significant amount of space. For years I've been wanting to make some display that show off these models without taking up a whole room!

After looking online, I found some wall mounts on Amazon that looked awesome and took up significantly less space! Unfortunately they're being sold for $125 each. There was no way I was going to spend $625 on something that was just going to sit on my wall, and they didn't even support powering the LED lighting some of my cars have. Surely I can do better, for cheaper right?

For each wall mount:
I got a 20x30" poster frame from Walmart for $20. I got some angle reinforcements, steel wire, screws, and washers for $1 (the Habitat Restore place has amazing prices). Hardboard for $3. 3D printed car mounts (by Pacoanimal) for ~$2. Female USB C & A plugs and wire for $6. Picture hanging hooks for $2 Finally the poster backgrounds for $21* which are somehow the most expensive part of this project. Totaling: $55 each.
* I have a friend who is printing them out for me for much cheaper. : )



The Walmart poster frame obviously wasn't designed to hold up a 6lbs Lego car so I added a proper hook at the top rated for 40lbs pictures. I don't trust the particleboard poster bezel to hold up over time so I used steel wire to attach the hanging hook to the bottom corner reinforcements to spread the weight. For more reinforcement, between the poster and the black cardboard backing I put a sheet of hardboard which provided a sturdy place to screw the 3D printed mounts into.

Lastly, I drilled a big hole in the center so I could run a usb port to the bottom of the Lego cars to power the lights. On the left and right side of the poster there's a usb C port which allows me to daisy chain all the posters together with a single power supply. I verified all the cars together only draw about 2.5w which is well within the usb spec.



After a few weeks of work, and getting some of the supplies free, I've spent a quarter of the retail price for all 5 wall mounts and I think they look pretty great! I'm still waiting on my friend to print out the final background posters but this is what it looks like so far!



Edit: TLM 2100th post!
Pretty cool looking! Bit of a shame about the cables going between them, but I suppose it would be challenging to improve on that without actually running cables inside your wall.
Looks really cool!

How often do you have the lights on?
Thanks guys! So far my friends have really liked it too. I got the new backgrounds previewed and noticed some horizontal defects caused by the printer. Once it's fixed I should be getting the final backgrounds not long after!

Thankfully the wires are tidy enough they don't bother me. I keep the lights on a timer that turns on in the evening and turns off around 10pm.
  
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