Files
2026-07-14 14:20:36 +08:00

1.7 KiB

v0.7.1 — Large STL files open in a blink

New features

Large STL files open in a blink

  • Opening big STL meshes (tens of MB, millions of triangles) is now near-instant instead of a multi-minute wait. A 75 MB / 1.5-million-triangle STL that used to take ages now shows in under a second.
  • STL is now parsed directly instead of going through the CAD kernel's importer, which used to build a full B-rep face per triangle (100k triangles: ~41 s → ~11 ms). Both binary and ASCII STL are detected and read automatically.

Customizable menu bar & quick toolbar

  • A full menu bar groups every feature into categorized dropdowns, and a quick toolbar lets you tick just the buttons you use most — your selection is remembered between sessions.

About dialog with a changelog

  • Help → About now shows a per-version, plain-language changelog so you can see what each release brought.

🐛 Bug fixes

STL geometry no longer leaks into STEP export

  • STL is pure mesh (no B-rep), so STL parts are now correctly excluded from STEP export — earlier versions wrongly mixed STL shells into the exported STEP. Rigid transforms and measurement on STL parts are unaffected.

📦 Downloads

Build Needs .NET Runtime? Notes
STPViewer_v0.7.1 (Standard) Requires .NET 8 Desktop Runtime Smaller download
STPViewer_v0.7.1_portable (Portable) Runtime included Unzip and run anywhere, no admin

Run STPViewer v0.7.1.exe.

Full changelog: v0.6.0...v0.7.1