ECMA A60.20 / FEFCO 0216 Snap-Lock Bottom 1:1 DXF · SVG · PDF Default Spec: 95 × 95 × 140 mm (T=0.6mm)

ECMA A60.20 Snap-Lock (1-2-3 Interlocking Bottom) Box Dieline Generator

1:1 CAD ENGINE READY

ECMA A60.20 Snap-Lock (1-2-3 Interlocking Bottom) Box Dieline Generator

1CAD Style & Material SetupPackaging

Select CAD Style / Model (36)Search & Filter

Material Stock Preset (Auto-Sets Caliper T & Kerf K)

Display Units

Reference Mode

2Dimensions (ID Mode)Millimeters (mm)

Internal Length (L)95 mm

Internal Width (W)95 mm

Internal Height / Flange (H)140 mm

Inside ID: 95×95×140mmOutside OD: 96.2×96.2×141.2mm

Thickness (T mm)

Laser Kerf (K mm)

3Brand Logo & 1:1 ExportZero Login

2D & 3D Brand Logo Mockup:

📤 Upload Logo

Print Artwork Bleed Guide:

Embed Spec Sheet & 50mm / 1" Scale Bars (Added on separate DIMENSIONS layer)

Pre-Flight Geometry Audit8/8 PASSED

PASS
Closed Outer Contours: 1 closed LWPOLYLINE cut loop(s) verified
PASS
Zero Duplicate Cut Paths: 32 unique segments (0 laser double-burns)
PASS
Flute & Kerf Tolerance Guard: T=0.60mm, K=0.000mm within structural limits
PASS
ISO Layer Color Separation: CUT (Red), CREASE (Blue), SCORE (Emerald), DIMENSIONS isolated
PASS
1:1 Physical Unit Header: Explicit mm/in SVG viewBox + DXF $INSUNITS=4 + 50mm PDF bar
PASS
Exact 2D Cut Bounding Parity: Cut Bounds 401×322mm === Blank Size
PASS
2D ↔ 3D Kinematic Model Sync: Archetype 'snap_lock_box' synced (1 3D component(s))
PASS
True Vector Sheet Nesting Sync: 1:1 vector paths mapped to multi-up sheet grid

100%

CUT (1.94m) CREASE/SCORE (1.42m)● 1 Loops · Est. Cut: ~64s

1:1 Synced · Blank: 401 × 322 mm

2D 1:1 Unfolded Vector BlueprintBlank: 401 × 322 mm (15.79" × 12.68")

3D Interactive Fold & Orbit (Kraft Board)

80%

0%100%

Camera:

Yaw: -28°Pitch: 24°

⟳ Drag Anywhere to Rotate 3DL=95 × W=95 × H=140mm

SNAP-LOCK FRONT(95×140mm)

1-2-3 LOCK BASE

SIDE

REAR

TOP TUCK LID

Flat Blank Size

401.0 × 322.0 mm

Internal Cavity (ID)

95 × 95 × 140 mm

1-2-3 Bottom Lock Depth

62 mm Heavy-Duty

Side Seam Glue Flap

21 mm

Structural & Manufacturing Specification Summary

Quick Default Download: ↓ .DXF ↓ .SVG ↓ .PDF

The ECMA A60.20 / FEFCO 0216 Snap-Lock Bottom (commonly called a 1-2-3 Bottom Folding Carton) is the premier heavy-duty retail box structure engineered for glass candle jars, ceramic coffee mugs, beverage bottles, and heavy cosmetics that would push open a standard tuck-end bottom. Its base consists of four interlocking flaps—a slotted anchor flap, two side hook flaps, and a male locking tongue—that snap together sequentially (1-2-3) to form a high-capacity load-bearing floor without bottom glue.

CUT LAYER #EF4444 (ACI 1)

CREASE / BEND #2563EB (ACI 5)

SCALE HEADER $INSUNITS=4 (1:1 mm)

SIMULATION 2D + 3D + Nesting

Pre-Calibrated Industry Sizes (2)

Standard Product Presets Built on This Snap-Lock 1-2-3 Bottom Box Engine

82 × 82 × 100 mm (T=0.6mm)

8oz Candle Jar 1-2-3 Box

78.0 mm Diameter x 95.0 mm Height (Standard 8oz / 9oz Straight-Sided Tumbler Candle Jar with Lid)

Load Preset Spec →

115 × 90 × 105 mm (T=1.5mm)

11oz Ceramic Mug Gift Box

82 mm Mug Diameter (110 mm including C-Handle) x 95 mm Height (Standard 11oz Sublimation Mug)

Load Preset Spec →

Structural Geometry & Allowances

Mathematical Blank & Tolerance Formulas

Total Flat Blank Width (W_blank)

W_blank = W_glue_flap + 2(L) + 2(W) + 3(T)

Sums the side glue flap, two primary panels (L), two side panels (W), and three vertical score line allowances.

1-2-3 Interlocking Bottom Depth (H_bottom_lock)

H_bottom_lock = 0.65 * W

Sets the structural overlap depth of the primary male tongue and female anchor slot so the base supports heavy vertical loads without sagging.

Total Flat Blank Height (H_blank)

H_blank = H_top_tuck + W + H + 0.65(W)

Combines the top friction tuck flap, top lid closure panel (W), main carton height (H), and bottom 1-2-3 snap-lock flaps.

Pre-Press & Production SOP

Step-by-Step Export & Assembly Guide

1 Enter the internal Length (L), Width (W), and Height (H) of your heavy product plus 2mm clearance, and choose your board caliper (T).
2 Preview the 1-2-3 bottom locking flaps in the 2D blueprint and test the 3D folding animation.
3 Download the 1:1 .DXF, .SVG, or .PDF file.
4 Glue the side seam, fold the slotted anchor flap (Step 1) inward, fold the two side hook flaps (Step 2) over it, and push the front male tongue (Step 3) into the anchor slot until it clicks.

Board Caliper, Laser & Die-Cutting Reference

Material Thickness, Creasing Matrix & Laser Kerf Settings

Material / Sheet Stock	Caliper Thickness (T)	Recommended Tooling / Laser Setup	Allowance / Kerf Spec	Primary Use Case
Heavy Folding Boxboard (GC1 /SBS 400gsm)	0.55 mm (22 pt)	2pt Creasing Rule + 0.6x1.9mm Matrix	Bottom Slot Relief: 1.0mm	Scented glass candles, heavy skincare jars, supplements
E-Flute Micro-Corrugated Board	1.50 mm	2pt Creasing Rule + 1.5x4.0mm Matrix	Bottom Slot Relief: 2.0mm	11oz/15oz ceramic coffee mugs, craft beer bottles, glassware

Packaging & CNC Engineering FAQ

Frequently Asked Questions — Snap-Lock 1-2-3 Bottom Box

When should I use a Snap-Lock (1-2-3) bottom instead of a Reverse Tuck End (RTE) box?

Whenever your product weighs more than 180–250 grams (such as glass candle jars, ceramic mugs, or 100ml+ glass bottles). A standard bottom tuck flap can slip open under concentrated downward weight, whereas the 1-2-3 interlocking bottom distributes the load across all four walls.

What is the difference between a 1-2-3 Snap-Lock Bottom and an Auto-Lock (Crash-Lock) Bottom?

A 1-2-3 Snap-Lock bottom requires no bottom gluing during manufacturing (saving folder-gluer setup costs) and is assembled by hand in three quick folds. An Auto-Lock bottom is pre-glued at the factory for high-speed automated packing lines.

How is the bottom flap depth (H_bottom_lock) calculated for safe weight capacity?

Our engine calculates the primary anchor and male locking tongue depth at 65% of the box width (0.65 * W) with a central interlocking slot at 50% width, ensuring full overlap across the carton center of gravity.

Can I cut a Snap-Lock 1-2-3 bottom carton on a flatbed die-cutter, CO2 laser, or digital cutter?

Yes! The exported 1:1 DXF, SVG, and PDF files separate CUT (Red) and CREASE (Blue) onto dedicated CAD layers compatible with Bobst flatbed die-cutters, Kongsberg/Zünd tables, and CO2 lasers.

Topical Silo Navigation (Packaging Dielines)