Make a Cardboard Punch Alignment Guide

WHAT TO GATHER

Your starting kit.

Clean, dry cardboard with uncrushed edges
A ruler, pencil, and scissors suitable for the board
Paper glue or paper tape as required by the joins
Scrap cardboard and a protective work mat
The hole punch you will use with the guide

STEP 01

Measure and prepare

Cut a base card about 150 mm square and glue two narrow strips along adjacent edges to form a corner stop.

STEP 02

Lay out the construction

Position the hole punch against the stop with a scrap tag inserted and mark where the tag edge sits.

STEP 03

Join and shape

Add a short stop strip at that mark, then test several scrap tags before using the guide on finished pieces.

STEP 04

Check the result

The guide must suit your own punch geometry; do not assume one spacing fits every tool. Let all adhesive dry before fitting the intended lightweight contents. Place the project on a flat surface and check that its joints sit square. If a slot tears or a wall leans, remake that piece from sound cardboard rather than hiding the weak join with decoration.

STEP 05

Finish and keep

Smooth exposed rough edges with a thin paper covering where needed, without blocking working slots. Keep the project away from water and heat. Recheck the joints after a few uses and replace a worn piece if it bends or loses its shape.

Before you begin.

How wide should I cut the slots?

Measure the cardboard thickness and test a slot on an offcut. The pieces should slide together with light pressure; forcing them can crush the corrugation and weaken the join.

What should I check before beginning?

The guide must suit your own punch geometry; do not assume one spacing fits every tool.

Original editorial project guidance. Images are AI-generated concepts, not photographs of tested finished projects. Practice on inexpensive materials and follow tool and material instructions. Sources & approach.

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