› #26 of 30 · Scale
Server rack
A real, working cluster you can touch
Comes after #25 Monitor / pixel
Build the real thing
10″ mini rack filled with Raspberry Pis
Buy a 10-inch mini rack and fill it with a few Raspberry Pis, a small network switch and a power supply, then network them into a cluster that shares one job.
- Raspberry Pi
- Cost
- $$$ · Over $100
- Time
- Multi-week project
- Screens
- Needs a computer
For the grown-up
A grown-up owns the mains power: proper Pi power supplies, plugged into a power strip an adult sets up.
Build it in bricks
156 pieces · 17 steps · Medium · parts checked September 24, 2026
Booklet: Activities Pass members now · free for email subscribers from November 5, 2026
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- Preview (free: cover, parts, step 1) →
- Other ways to get it (for grown-ups) →
Where to buy the parts
The parts lists are free. Booklet: Activities Pass members now · free for email subscribers from November 5, 2026.
Do this on a computer: you save a file here, then upload it to the store.
- BrickLink: Wanted List (XML)
Open the file in a text editor and copy all of it. On BrickLink, choose Want → Upload → BrickLink XML format, paste, verify the items, then add them to a Wanted List.
- LEGO Pick a Brick: Parts upload (CSV)
A US & Canada beta, and some parts may not be stocked. On Pick a Brick, choose Upload list, add this file, then Upload.
- BrickOwl: BrickLink XML
On BrickOwl, choose Wishlist → Import → Import BrickLink XML and upload this file.
- Rebrickable: BrickLink XML
Make a Part List on Rebrickable, choose Import/Delete Parts, then upload this file on the BrickLink XML tab.
Full parts list with part numbers (CSV)
Parts data: Rebrickable, checked September 24, 2026.
The AI ideas it connects to
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