PRODUCTION

How to make an SVG cut file from scratch

The four stages of building a cut file yourself — source, outline, layer, test — plus the node and stroke rules that decide whether it cuts cleanly on the first sheet.

Reviewed by the AISVG Pro editorial team · Updated 2026-10-24


What is the starting point for a cut file?

Almost every cut file starts as one of three things: typed text, a drawing, or a bitmap you already own. Each has a different first step.

Typed text: set it, then convert to outlines. Never ship live text.

A drawing on paper: scan at 300 dpi, then trace it yourself.

A bitmap logo: trace it, then clean the nodes.

The first step is always the same in spirit: get to paths with no font, no bitmap and no open line.

Which editor should you use?

Inkscape is free and handles everything here: Trace Bitmap, Object to Path, Path → Simplify, and DXF export. Illustrator and Affinity Designer are faster if you already own them.

Design Space is not an editor for building files — it can upload and arrange, but node cleanup and colour separation belong in a real vector tool. That split is worth respecting: fixing geometry in Design Space is slow and lossy.

How clean should the outlines be?

Clean enough that the blade can follow them. In practice:

Closed paths only. An open path is a line the machine draws once and stops.

Few nodes. A smooth curve needs four nodes; an auto-trace produces forty. Run Path → Simplify, then check the shape again.

No overlapping doubled edges. Two outlines on top of each other read as one shape and cut as two passes.

Minimum stroke around 1.4 mm for 651 vinyl, about 2 mm for HTV. Detail below that tears while weeding.

How do colour layers work?

A cutting machine treats each colour as a separate cut pass, and each pass needs its own sheet of material. Two things make layered files usable:

One named group per colour, so the machine and the person both know what is what

Registration marks, so the second layer lands on the first

Back-to-front order matters for stacked vinyl: the largest shape goes down first, the smallest last. A file that lists layers by brightness instead of stack order will be assembled wrong.

What should you test before cutting the real material?

Cut a 2-inch test piece on scrap. It answers the only questions that matter: does the thinnest detail survive, do islands fall out, and does the shape still read at final size.

Preview is not a test. Screen rendering smooths, scales and fills detail that the blade meets at 1:1.

How should the file be exported?

SVG for Design Space, Illustrator, Inkscape and most laser software

DXF in millimetres for Silhouette Studio free edition, LightBurn and CNC tools

PNG only for mock-ups and print checks — never for cutting

Check the export size in millimetres, not in pixels. A file that opens at 96 dpi assumptions is 3.78× smaller than the design.

Can I build a cut file without design software?
For flat artwork you can: trace an existing image in the browser and edit the result in Design Space. For original lettering or multi-colour layered designs you need a vector editor.
Why does my file cut double lines?
Duplicated or overlapping paths, usually left over from tracing or from copy-pasting shapes. Select all, use Path → Union or remove duplicates, then re-check the outline.
Do I need to set a document size in millimetres?
Yes, if the physical size matters. A viewBox alone has no units, and different programs interpret it differently.

Tools for this job

Related reading