Modular Open‑Frame Micro‑ATX Case for 20+ HDDs

### Modular Open‑Frame Micro‑ATX Case for 20+ HDDs (3D Printed)

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This is a 3D‑printed, modular open‑frame case designed to support a **micro‑ATX motherboard** and **20 or more 3.5" hard drives**.
It’s ideal for DIY NAS builds with large storage arrays, or for anyone who needs a compact high‑capacity HDD solution.

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### ✅ Positive Notes
- Modular open‑frame structure for easy assembly and fast printing time
- Supports **micro‑ATX** motherboards
- Holds **20+ standard 3.5" HDDs** (40 HDD slots in the photos)
- Rear fan mount for good airflow
- Most parts can be joined together using small printed interlocking blocks (**LockingTab**)

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### ❌ Negative Notes
- I didn’t design any cable management at all, so… good luck
- Some screws and threaded inserts are required to assemble the **PieceHolder**, the **HDDLocks**, and the fans
- All the power and fan cables shown in the photos are handmade by me — make sure you have the necessary skills before creating DIY ca