---
title: "Challenge Archive"
category: "challenges"
order: 10
description: "Complete archive of past monthly design challenges and winner spotlights."
tags:
  - challenge
  - archive
---
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# Challenge Archive

Browse through our past community challenges, winning entries, and design prompts:

### 2026 Challenges
- **[August 2026: "Gridfinity Extravaganza"](August-2026)** - Modular storage systems and custom bin designs.
- **[July 2026: "Scarf Seams"](July-2026)** - Testing seamless z-seam alignment on organic curved surfaces.
- **[May 2026: "Bring an Experiment 2"](May-2026)** - Printer experiments, failure analysis, and discoveries.
- **[March 2026: "Print-in-Place"](March-2026)** - Articulated models and tight tolerance hinges.
- **[February 2026: "Speed vs. Quality"](February-2026)** - High-speed flow rate tuning challenge.
- **[January 2026: "Fix It!"](January-2026)** - Real-world replacement parts and repairs.

### 2025 Challenges
- **[December 2025: "Holiday Ornaments"](December-2025)** - Festive seasonal lithophanes and decorations.
- **[November 2025: "Wait, This Was Printed?"](November-2025)** - Surface finish challenge (25mm test cube).
- **[October 2025: "Is it Glass or Clearly Natural?"](October-2025)** - Optical clarity challenge using 3D Fuel Clearly Natural.