From DXF to machine file: a step-by-step guide

Linh Nguyen 2 min read

From DXF to machine file: a step-by-step guide

Step-by-step how-tos for builders and engineers. In this article we walk through what we have learned on real projects, with numbers you can use.

How the process works

1. Import the model

Upload an IFC or DXF export. The software reads wall centrelines, openings and levels, then proposes a frame layout using your default profile rules.

2. Review and adjust

Walk the model in 3D, fix clashes and tweak stud spacing around services. Changes ripple through the cut list automatically.

3. Send to the machine

Each panel is exported as a CSV or machine file. The roll-former reads it, forms the coil and punches dimples, service holes and labels in one pass.

“The first time we ran a whole house straight from the model, the site crew finished the frame before the scaffolding was down.”

Exporting a cut list

Most machines accept a simple CSV. A minimal row looks like this:

panel,member,profile,gauge,length_mm,operations
W01,S01,C89,0.95,2700,"DIMPLE@0;SERVICE@900;DIMPLE@2700"
W01,S02,C89,0.95,2700,"DIMPLE@0;SERVICE@900;DIMPLE@2700"
W01,T01,U90,0.95,3600,"LABEL@0"

Keep member names unique per panel so the assembly drawings stay readable.

Common mistakes

Mixing units

A model drawn in centimetres and exported as millimetres produces frames ten times too small. Check the export settings every time.

Ignoring services

Plumbing and electrical runs need pre-punched holes in the right place. Add them to the model, not with a drill on site.

Skipping the test panel

Form one panel and dry-fit it. Ten minutes of checking saves a day of re-forming.

What to do next

Start small: pick one wall type, run it end to end, and measure the time it takes. Once the team trusts the output, scale up to a full house. If you want a second pair of eyes on your model, upload it to LGSF Market and our engineers will review it.

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