Loading...
Precision Scoring
Fold Lines &
Dielines
The invisible engineering that makes everything else possible. Our precision score lines create hinges that bend accurately without cracking, the foundation of every reliable easel back and display structure.
CNC Scoring Process
Understanding Fold Lines
The Hidden Hinge
In manufacturing, a fold line, also called a score line or dieline, is a pre-creased mark on a flat sheet of board. It acts as a hinge, allowing the flat material to bend accurately at a specific point without cracking or breaking.
For easel backs and display structures, these lines are precisely measured to ensure the final product stands at the correct viewing angle. The score depth, position, and technique must all be calibrated to the specific substrate being used. Get any of these wrong and the fold either cracks through or doesn't bend cleanly.
CNC rotary scoring
Flatbed die-cutting
Custom angle engineering
Multi-fold patterns
Prototype service
Dieline file support
Scoring Methods
Three Ways to Score
CNC Rotary Scoring
High-speed rotary scoring wheels apply precise, consistent pressure across the full sheet. Ideal for long production runs where speed and repeatability matter.
Best For
High-volume runs, consistent caliper boards
Flatbed Die-Cutting
Steel-rule dies on flatbed presses create complex multi-fold patterns in a single pass. Perfect for intricate dielines with multiple score lines at varying angles.
Best For
Complex dielines, multi-fold patterns
Custom Angle Engineering
When the finished product must stand at a specific angle, we reverse-engineer the fold geometry. Score placement, depth, and spacing are all calculated before cutting begins.
Best For
Display stands, easel backs, POP structures
Why Score Lines Matter
Precision at Every Point
Accuracy
A score line placed 1mm off can change the viewing angle by several degrees. Our CNC equipment eliminates human variance.
Consistency
In a run of 10,000 pieces, every single fold line must be identical. Batch-to-batch consistency is where CNC scoring outperforms manual methods.
Material Integrity
Too deep and the board cracks through. Too shallow and it won't fold cleanly. We calibrate score depth to each substrate's caliper.
Downstream Quality
Every other component, the easel back, the display angle, the adhesive bond, depends on the fold line being right. It's the foundation.
\u00b10.005"
Tolerance
5\u00b0-180\u00b0
Angle Range
Technical Details
Specifications
| Specification | Details |
|---|---|
| Score Method | CNC rotary scoring, flatbed die-cutting |
| Board Compatibility | SBS, chip, poly, and pulp boards, 10pt to 40pt |
| Tolerance | ±0.005" standard, tighter on request |
| Angle Range | Any angle from 5° to 180° |
| Score Depth | Calibrated per caliper. Partial penetration prevents cracking |
| Pattern Complexity | Simple single-fold to multi-fold complex dielines |
| File Formats | AI, PDF, DXF, DWG. We accept all standard dieline formats |
| Proofing | Digital proof + physical prototype available |
The Flech Difference
Why Source Fold Lines
From Flech?
±0.005" Tolerance
Our CNC scoring heads are calibrated daily. The fold line on piece #1 is identical to piece #50,000, guaranteed.
No Cracking, No Breaking
Score depth is calibrated to each substrate's caliper. We penetrate just enough to create a clean hinge without compromising the board's structural integrity.
Exact Angles, Every Time
The placement of each score line determines the final standing angle. Our engineering ensures the geometry is right before a single sheet is scored.
Complex Dieline Capability
Multi-fold patterns, compound angles, nested scores. We handle dielines that other converters turn down.
Fast Prototyping
Send us your dieline file and we'll produce physical prototypes within days. Test the fold, verify the angle, approve for production.
Engineering Support
Don't have a dieline? Tell us what the finished product needs to do and we'll engineer the fold pattern to achieve it.
The Cutting Floor
Our CNC and flatbed die-cutting machinery at work — delivering fold lines at scale.
Get Started
Need Precision
Fold Lines?
Send us your dieline file or describe what you need. We'll engineer the scoring pattern and quote it within 24 hours.