Convert FrameCAD Files to LongLong CSV

LongLong is a Chinese manufacturer of light gauge steel framing machines popular with cost-conscious fabricators. Its machines accept CSV frame files; LGSConverter's configurable custom profile can target CSV dialects like this — confirm with a sample file before committing to production.

FrameCAD design, LongLong production

Design offices around the world work in FrameCAD — but the machine on your floor decides what file format you need. LGSConverter reads the FrameCAD export (XML, FCP, or IFC), computes every member's cut length and tooling marks, and writes a CSV production file.

Free to try — upload your file, review every frame in the 2D editor at no cost, and pay only $0.03 USD per linear metre when you export.

Targeting your LongLong machine

Dahezb and PINNACLE CSV formats are built into LGSConverter. Other CSV-driven roll-formers — including LongLong machines — can be targeted through the configurable custom machine profile, which maps FrameCAD tooling conventions (swage, lip notch, web notch, dimple) to your machine's tool codes. Before running converted output in production, send us a sample of your LongLong CSV format — we'll confirm whether the custom profile covers it.

Verify before you run

Each frame is displayed in the 2D editor with members and tooling exactly as they will reach the machine. Built-in QA checks flag missing tooling, mixed notch/swage combinations, and geometry issues before the CSV is generated — the last human checkpoint before fabrication.

Also converting for other machines?

See the full supported machines list — the same FrameCAD file can be exported for different machines using separate profiles.

Frequently Asked Questions

Can a LongLong machine run a FrameCAD design?

LongLong machines run from CSV frame files. LGSConverter converts the FrameCAD export (XML, FCP, or IFC) into a CSV with cut lengths and tooling positions; Dahezb and PINNACLE formats are built in, and other dialects — including LongLong — are targeted through a configurable custom machine profile. Send us a sample of your machine's CSV format and we will confirm compatibility before you run production.

Do I need FrameCAD software installed to produce CSV files for a LongLong machine?

No. The conversion runs entirely in the browser at lgsconverter.com — no FrameCAD Detailer licence or installation is required.

How much does the conversion cost?

Reviewing and converting is free; exporting costs $0.03 USD per linear metre. There is no seat licence, subscription, or minimum commitment.

Start converting now — free to try, pay only when you export.