STP/STEP files export for CNC cutting
Environment
Not environment-specific
There are some special CNC machines that support STP/STEP files for parts cutting/profiling.
Starting with Tekla Structures 2025, you can use the new direct STEP/IGES export. It offers the best capabilities for exporting STEP files for manufacturing, such as automated steel handrail production.: Export STEP and IGES files - New export for automated steel handrail manufacturing
Another method available for older versions is exporting STEP files using the Multi Converter Extension, you can find it here.
For more information about the export, see Export to IFC, STEP, IGES, OBJ ,STL, DGN, DWG, DXF, and SKP with the Multi Converter.
Few points to keep in mind when exporting the files:
- Ensure that the part/shape is closed. An open shape could cause some errors, for example, if a part is cut in the middle might become two segments.
- If you are facing problems in reading the STP file at the machine software then try manipulating the cuts which are made to the parts, e.g.. change polygon cuts into part cuts.
- Ensure that the cuts are done properly to avoid wasted material, e.g.. don't flush the cut with the part edges and always extend the cuts beyond the part edges
- If facing problems, try to give a rotation angle to the pipe
- You can also try to increase the diameter of the pipe cut by 1mm
- Always check the part with a STP viewer to insure it is generated correctly. Here is an example of a viewer: Steel-Projects CAD Viewer