STEP to a true 1:1 mm 2D drawing
Open a STEP model from any supplier. Choose the view. Save a clean drawing at true scale: DXF for your CAD and panel layout software, SVG for the web, PNG to send to anyone.
Convert
Pick the view: front, top, side or any angle you turn the model to.
True 1:1 millimetre scale, with a predictable origin.
A 3x3 grid of views, or a 14-view board, in one file.
The DXF is tidied for you: duplicate lines removed, pieces joined.
Also in Convert
- 3D formats: STEP to STL, OBJ, 3MF and more, with an honest note on what each format loses.
- Simplify: a light space-claim model of a device for 3D layout.
Batch
Convert a whole folder of STEP files in one go, with the same settings.
Watch
Point Orrery at a folder. New STEP files are converted as they arrive.
Browse
See a folder of STEP files as pictures. Rename, sort into folders, and undo a batch of changes. Send a file straight to Convert.
Clean up
Open any DXF. Remove duplicate lines, join pieces into polylines, delete what you do not need, and save.
Try it free
Every feature works in the free trial, up to 5 conversions a day. Buy once in the Microsoft Store to remove the limit. Your drawings are never watermarked. If you build Orrery from the source code yourself, there is no limit.
Needs: Windows. A one-time download of FreeCAD (about 418 MB), which Orrery uses to read STEP files. After that, conversion works offline.