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Plasma cutting & nesting

File Formats

What each input route reads, how to get the best result, and where the limits are.

DXF

.dxf
What we read
Lines, arcs, circles, LW/polylines with bulges, ellipses, splines, blocks (INSERT) and layers.
Best results
Export as AutoCAD R2000 (or newer) ASCII, at 1:1 in millimetres. Put etch or marking lines on a layer called ETCH.
Limits
Text and dimensions are ignored. Open outlines are flagged so you can close them.

DWG

.dwg
What we read
The same geometry as DXF, read from AutoCAD drawings up to the current release.
Best results
Keep each plate in model space, one outline per part, at 1:1 in millimetres.
Limits
Very large DWGs open more slowly in the browser; DXF is quicker if you have the choice.

STEP & IGES

.step .stp .iges .igs
What we read
Solid bodies. Flat plates are recognised and their outline and holes taken from the top face.
Best results
Export one body per plate, or a whole assembly — each flat plate becomes a part with its thickness.
Limits
Bent parts are not unfolded. Send a flat pattern DXF for folded work.

PDF

.pdf
What we read
Vector line work in CAD-generated PDFs, with the scale set from a known dimension.
Best results
Print to PDF from your CAD package rather than scanning. Include at least one overall dimension.
Limits
Scanned PDFs are traced as images, so check the result and confirm sizes before ordering.

DWFx

.dwfx
What we read
Sheet line work from Autodesk Design Review and Revit exports.
Best results
Choose DWFx when exporting — it is the open, zip-based version.
Limits
Classic binary DWF is not supported. Re-export as DWFx, DXF or PDF.

NC & G-code

.nc .txt .cnc .tap .ngc .esi
What we read
G0/G1/G2/G3 moves, torch on/off and kerf codes from the 17 controller dialects we support.
Best results
Send the program as your machine runs it; we rebuild the parts from the cut paths.
Limits
Lead-ins are stripped. Kerf-compensated paths are read as cut, so state if offset was applied.

Photo or sketch

.jpg .png .heic
What we read
The strongest outline in the image, traced into closed cut paths.
Best results
Shoot square-on in good light on a plain background, with a ruler in frame.
Limits
Traced shapes are approximate. You confirm the real dimensions before nesting.

Text & voice

Typed or spoken
What we read
Shapes, sizes, thickness, holes, slots, radii and quantities in plain English.
Best results
Say one part at a time: “gusset 150 by 150, 10 thick, 20 chamfer, quantity 8”.
Limits
Voice needs a browser with speech recognition (Chrome, Edge or Safari).

AI recognition

Any of the above
What we read
Part lists, quantities and plate details from drawings, schedules and photos.
Best results
Clear, legible drawings give the best results. Highlight the parts you need.
Limits
AI suggestions are always shown for you to check; nothing is ordered automatically.