Update challenges for December 2025 and add January 2026 placeholder

challenges/December-2025/readme.md

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-# December 2025 Challenge: [TITLE TBD]
+# December 2025 Challenge: "Bring Your Test Models"
 
-## Challenge Overview
+This month's challenge is all about the models we use to test, tune, and calibrate our printers. Everyone has a favorite "go-to" print—whether it's a Benchy, a calibration cube, a torture test, or something unique you've found.
 
-[Challenge description to be determined]
+**Bring your favorite test models to the meetup!**
 
-This challenge focuses on:
+## Challenge Details
 
-- [Key focus area 1]
-- [Key focus area 2]
-- [Key focus area 3]
-
-## Challenge Rules
-
-### Materials & Constraints
-
-- **Filament**: 3D Fuel filament (type TBD)
-- **Additional Requirements**: [TBD]
-- **Estimated Filament Usage**: [TBD]
-- **Model Specification**:
-  - **Dimensions**: [TBD]
-  - **Special Requirements**: [TBD]
-
-### Competition Categories
-
-- [Category 1]: [Description]
-- [Category 2]: [Description]
-
-### Judging Criteria
-
-1. **[Criteria 1]** ([XX]%): [Description]
-2. **[Criteria 2]** ([XX]%): [Description]
-3. **[Criteria 3]** ([XX]%): [Description]
+### The Goal
+Share what test models you use and why. Do you use them for:
+- Calibrating dimensional accuracy?
+- Testing overhangs and bridging?
+- Tuning retraction settings?
+- Checking first layer adhesion?
+- Just for fun?
 
 ### Submission Requirements
+- **Physical Model**: Bring your printed test model(s) to the January meetup.
+- **Explanation**: Be prepared to share *why* this is your favorite test model and what it helps you achieve.
 
-- **Physical Model**: Bring your print to the January meetup for judging
-- **Documentation**: Include photos showing:
-  - [Photo requirement 1]
-  - [Photo requirement 2]
-- **Settings Documentation**: Share your settings:
-  - [Setting 1]
-  - [Setting 2]
-- **Process Notes**: Brief description of your approach
-
-### Evaluation Process
-
-- **Initial Verification**: [Verification requirements]
-- **Visual Inspection**: [Inspection criteria]
-- **Community Voting**: People's choice award
-
-## Prizes & Recognition
-
-### Awards
-
-- **[Award Category 1]**: [Description]
-- **People's Choice Award**: Community favorite
-
-### Documentation
-
-- Winner photos for social media sharing
-- Settings profiles shared with community
-- Technique documentation for learning
+### Voting & Awards
+- **Group Vote**: The group will vote on what they think is the **Best Test Model**.
+- **Criteria**: Usefulness, uniqueness, or just plain coolness!
 
 ## Timeline
-
 - **Challenge Announcement**: December 10, 2025 (at December meetup)
-- **Submission Deadline**: January [TBD], 2026 (at January meetup)
-- **Judging Period**: January [TBD], 2026 (during January meetup)
-- **Winner Announcement**: January [TBD], 2026 (end of January meetup)
-
-## Model Creation Instructions
-
-### Creating the Model
-
-[Instructions TBD]
-
-### Slicer Configuration
-
-[Configuration details TBD]
-
-### Tips for Success
-
-- [Tip 1]
-- [Tip 2]
-- [Tip 3]
-
-### What NOT to Do
-
-- [Don't do this]
-- [Don't do that]
-
----
-
-**Challenge details will be announced at the December 10th meetup!**
+- **Show & Tell / Voting**: January 2026 (during January meetup)
+- **Winner Announcement**: January 2026 (end of January meetup)

challenges/January-2026/readme.md

@@ -0,0 +1,18 @@
+---
+gitea: none
+include_toc: true
+---
+
+# January 2026 Challenge: [Title TBD]
+
+**Status**: Planning in Progress
+
+## Challenge Overview
+
+Details for the January 2026 challenge will be announced at the January meetup.
+
+## Timeline
+
+- **Announcement**: January 2026
+- **Submission**: February 2026
+- **Judging**: February 2026