How to convert SLDPRT to STL
- Add your .SLDPRT file - drop it in the box above or click to browse.
- Convert it to .STL in a few seconds.
- Download your new .STL file.
What to expect
- Feature history is lost - STL stores only the final triangle mesh; you cannot edit dimensions or features in the exported file.
- Tessellation quality matters - lower chord deviation (0.05-0.1 mm) produces smoother curves; coarse settings leave visible flat facets on printed parts.
- STL carries no colour, material, or metadata - for colour or multi-material prints, export 3MF or OBJ from SOLIDWORKS instead.
Frequently asked questions
Can I convert SLDPRT to STL without SOLIDWORKS?
Yes - Autodesk Fusion 360 (free for personal use) and eDrawings Viewer (always free) both import
.sldprt files and export STL.Will curves look right in the STL?
Curves become triangle approximations - choosing the finest tessellation quality at export keeps them as close to the original geometry as possible.
Why can't I open the SLDPRT file in SOLIDWORKS?
SOLIDWORKS cannot open files saved in a newer version than yours - ask the sender to resave for your version or provide a STEP export instead.
Should I share STL or STEP with another CAD user?
For 3D printing use STL; for a CAD user who needs to edit the part, share STEP - it preserves solid geometry and works across all major CAD tools.
Programs that convert SLDPRT: CrossManager · PolyTrans|CAD+DCC · SolidWorks · 3ds Max (3D Studio Max) · Alibre Design Professional · TransMagic · Autodesk Inventor · EnSuite
