Restructure challenges into organized monthly system
- Create challenges/ directory structure with monthly subfolders - Move October challenge to challenges/October-2025/readme.md - Create challenge template in challenges/readme.md - Add November 2025 placeholder in challenges/November-2025/readme.md - Convert challenges.md to summary page with links and archive - Update image paths for October challenge screenshots - Add comprehensive challenge participation and development info
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Eric Spooner
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challenges.md
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challenges.md
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# 3D Print Meetup Challenges
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## October 2025 Challenge: "Is it Glass or Clearly Natural?"
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Welcome to our monthly 3D printing challenges! Each month features a unique theme designed to test different aspects of 3D printing skills, from material handling to design innovation.
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### Challenge Overview
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## Active Challenge
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Experience the clarity of 3D Fuel's "Clearly Natural" filament in this transparency-focused challenge! Participants will attempt to create the clearest possible print, testing the limits of clear filament printing techniques.
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### October 2025: "Is it Glass or Clearly Natural?"
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### Challenge Rules
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**Theme**: Transparency and clarity testing with 3D Fuel "Clearly Natural" filaments
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#### Materials & Constraints
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**Key Details**:
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- **Filament**: 3D Fuel "Clearly Natural" - Available in two variations:
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- PCTG (Polyethylene Terephthalate Glycol)
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- PLA (Polylactic Acid)
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- **Maximum Filament Usage**: 250g per entry
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- **Model Specification**: Cylinder - 25mm diameter × 50mm height
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- **Print Mode**: Vase mode (approximately 6 grams of filament)
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#### Competition Categories
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- **PCTG Division**: For prints using Clearly Natural PCTG
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- **PLA Division**: For prints using Clearly Natural PLA
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- **Overall Winner**: Best clarity across both divisions
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#### Judging Criteria
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1. **Clarity & Transparency** (40%): How clear and glass-like is the final print?
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2. **Print Quality** (30%): Surface finish, layer adhesion, and overall structural integrity
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3. **Technique Innovation** (20%): Creative printing techniques to maximize transparency
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4. **Challenge Adherence** (10%): Following material constraints and using supplied model
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#### Submission Requirements
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- **Model Compliance**: Cylinder must measure 25mm diameter × 50mm height
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- **Vase Mode**: Must be printed in vase mode (single perimeter wall)
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- **Weight Verification**: Should use approximately 6 grams of filament
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- **Documentation**: Include photos showing transparency (with light sources)
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- **Settings Documentation**: Share printer settings used (layer height, temperature, speed, etc.)
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- **Process Notes**: Brief description of techniques used to achieve clarity
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#### Evaluation Process
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- **Transparency Test**: Prints will be evaluated under controlled lighting conditions
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- **Comparative Assessment**: Side-by-side comparison with actual glass reference
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- **Community Voting**: People's choice award for favorite clear print
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- **Technical Review**: Expert panel assessment of print quality and technique
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### Prizes & Recognition
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#### Awards
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- **PCTG Division Winner**: Recognition + prize
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- **PLA Division Winner**: Recognition + prize
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- **Overall "Glass Master" Winner**: Grand prize + recognition
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- **People's Choice Award**: Community favorite
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- **Innovation Award**: Most creative clarity technique
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#### Documentation
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- Winner photos for social media sharing
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- Video documentation of winning techniques
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- Settings and process sharing for community learning
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### Timeline
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- **Challenge Announcement**: October 1, 2025
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- **Model Specification Released**: October 13, 2025
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- **Model**: 25mm diameter × 50mm height cylinder in vase mode
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- **Materials**: 3D Fuel "Clearly Natural" PCTG or PLA
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- **Focus**: Maximum transparency and print quality
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- **Submission Deadline**: October 28, 2025
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- **Judging Period**: October 29-30, 2025
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- **Winner Announcement**: October 31, 2025
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### Creating the Cylinder Model
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**[📋 View Full Challenge Details](./challenges/October-2025/readme.md)**
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#### Using Bambu Studio
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## Upcoming Challenge
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**Step 1: Add Primitive**
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### November 2025: "[Challenge Name TBD]"
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1. Open Bambu Studio to a new project
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2. Right-click on the build plate
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3. Select "Add Primitive"
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4. Select "Cylinder"
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**Status**: Planning in progress
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**Expected Timeline**:
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**Step 2: Resize the Cylinder**
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- **Announcement**: November meeting (November 12th, 2025)
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- **Submission Period**: TBD
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- **Judging**: TBD
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1. Click to resize the cylinder
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2. Uncheck "uniform scale" if checked
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3. Set X and Y to 25mm
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4. Set Z to 50mm
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**[📋 View Challenge Placeholder](./challenges/November-2025/readme.md)**
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## Challenge Archive
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#### Alternative Methods
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### 2025 Challenges
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- **Fusion 360**: Create cylinder sketch, extrude to 50mm height
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- **Tinkercad**: Use cylinder shape, adjust dimensions
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- **FreeCAD**: Create cylinder with specified dimensions
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- **Any CAD Software**: Simple cylinder 25mm diameter × 50mm height
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| Month | Challenge Name | Theme | Status |
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|-------|---------------|-------|--------|
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| October | "Is it Glass or Clearly Natural?" | Transparency & Clarity | **Active** |
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| November | [TBD] | [TBD] | Planning |
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| December | [TBD] | [TBD] | Future |
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## How Challenges Work
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### Challenge Structure
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Each monthly challenge includes:
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- **Specific theme** focusing on different 3D printing aspects
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- **Clear requirements** for models, materials, and techniques
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- **Multiple award categories** for different achievements
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- **Community judging** during show & tell sessions
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- **Documentation sharing** for learning and improvement
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### Participation
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- **Open to all skill levels** - beginners to experts welcome
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- **Bring your submission** to the monthly meetup
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- **Share your process** - settings, techniques, and lessons learned
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- **Vote on favorites** during community judging
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- **Learn from others** through shared experiences
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### Awards & Recognition
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Each challenge features multiple ways to win:
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- **Technical excellence** awards for best execution
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- **Innovation** awards for creative approaches
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- **People's choice** awards from community voting
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- **Category-specific** awards based on challenge theme
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- **Social media features** for all participants
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## Challenge Development
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### Suggesting Challenges
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Community members can suggest future challenge themes:
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- **Submit ideas** during meetup discussions
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- **Discord voting** on proposed themes
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- **School partnership** input for educational value
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- **Skill development** focus areas
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### Challenge Template
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For organizers developing new challenges, see our **[Challenge Template](./challenges/readme.md)** which provides the standard structure and guidelines for creating engaging monthly competitions.
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---
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**Current Focus**: Join us for the October transparency challenge and help shape November's theme!
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