Paper crafts

Explosion-box card prototype

Explosion-box card prototype developed as a measured original paper study. The packet provides the actual parts, joining or shaping marks, drawing dimensions and an assembly sequence. Print at actual size and dry-fit the parts before gluing.

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All exact editions
Paper
US Letter
Pages
4
Sheet
215.9 × 279.4 mm
Format
Print PDF
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Pages in this PDF
  • Page 1 — Assembly instructions
  • Page 2 — 60 mm center with four 45 mm side panels
  • Page 3 — Separate lift-off lid complete cut boundary
  • Page 4 — Assembly instructions

Enter these page numbers in your PDF viewer’s print range. Keep any instructions, matching answers and required project pieces.

Explosion-box card prototype / LETTER

A good fit for your idea?

Letter and A4 preserve the component dimensions. Choose the sheet you will print, not a different object size.

Materials and construction

Plain 100 to 140 gsm paper for a first dimensional trial; approximately 160 to 220 gsm card only after confirming the folds. Use a ruler, suitable scissors, a blunt scoring tool and a small amount of paper adhesive. An adult should handle internal cuts, holes and small fasteners.

Before making a batch

Measure the 50 mm reference and two named component dimensions.

Make a complete empty trial and document fold direction, joining order, collision, stability and any fragile features.

Repeat the trial using your chosen paper. Check that every join holds and each moving part works freely before decorating.

Inside this edition

Instruction pages
2
Orientation
Portrait

60 x 60 mm center; four 45 mm loose side panels; lid face 61.6 x 61.6 mm.

From file to finished page

  1. Cut the cross-shaped base and fold all four sides upright without joining the corners.
  2. Assemble the separate shallow lid by gluing its corner tabs behind adjacent walls.
  3. Place the lid over the four raised sides; test clearance without forcing it.
  4. Lift the lid to let the side panels fall open. Decorate panels separately so no hinge is bridged.
Printing and use notes

Drawing dimensions describe flat paper surfaces, not verified internal capacity, load strength, fit or material compatibility.

No mailing, food-contact, archival, toy-safety, protective-wear or cutting-machine certification is supplied.

Make a plain-paper trial first; paper thickness and fold accuracy can change the fit.

Direct PDF files for every edition
  • Explosion-box card prototype / LETTER · 4 pages
    Page numbers and contents
    • Page 1 — Assembly instructions
    • Page 2 — 60 mm center with four 45 mm side panels
    • Page 3 — Separate lift-off lid complete cut boundary
    • Page 4 — Assembly instructions
  • Explosion-box card prototype / A4 · 4 pages
    Page numbers and contents
    • Page 1 — Assembly instructions
    • Page 2 — 60 mm center with four 45 mm side panels
    • Page 3 — Separate lift-off lid complete cut boundary
    • Page 4 — Assembly instructions
  • Exploding Side Panels gift box project / LETTER · 5 pages
    Page numbers and contents
    • Page 1 — Assembly instructions
    • Page 2 — 60 mm center with four 45 mm side panels
    • Page 3 — Separate lift-off lid complete cut boundary
    • Page 4 — 42 x 36 mm side-message panel (4 pieces)
    • Page 5 — Assembly instructions
  • Exploding Side Panels gift box project / A4 · 5 pages
    Page numbers and contents
    • Page 1 — Assembly instructions
    • Page 2 — 60 mm center with four 45 mm side panels
    • Page 3 — Separate lift-off lid complete cut boundary
    • Page 4 — 42 x 36 mm side-message panel (4 pieces)
    • Page 5 — Assembly instructions

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Explosion-box card prototype