nc1-viewer.com
nc1-viewer.com
Practical reference material on the DSTV NC file format used in structural steel fabrication — written from the experience of implementing a full DSTV parser and renderer for the free online NC1 viewer.
Where the format comes from, what an .nc1 file contains, which software produces and consumes it, and a walk through a real example file line by line.
ST, EN, BO, AK, IK, SI, PU, KO, KA and friends — what each block means, the data on each line, and the exporter quirks to watch for.
The profile code in the ST header decides how every coordinate in the file is interpreted. What each code means and how faces map onto each shape.
Ways to open .nc1 files, and a practical pre-production checklist: verifying header data, hole patterns, copes, and markings before material is cut.