Many manufacturers will request a STP / STEP or IGS / IGES file design drawings for designing molds or for pricing manufactured parts for production of your invention or product.
“Manufacturing Design Drawings”
Products for manufacture should be designed as a full three-dimensional model with associated drawing views and dimensions using a Computer Aided Design (CAD) system. The IGES and STEP product design file format serves as a neutral data format to transfer the design to a dissimilar system. Translators, developed to the IGES and STEP Standard, are used to export a design into an IGES or STEP file for exchange and for importing the IGES or STEP file into the destination system.
IGES or IGS files stands for Initial Graphics Exchange Specification and is a file format which defines a vendor neutral data format that allows the digital exchange of information among Computer-Aided Design (CAD) systems.

STEP or STP files stands for Standard for the Exchange of Product Data. This ISO standard exchange format is used to distribute 3D data files (such as CAD files) in a format that can be viewed by a variety of software applications.
The .step file extension is interchangeable with the .stp file extension.
The .step file extension is also used for PyDDR files.
STP files can be opened by CATIA (Computer Aided Three Dimensional Interactive Application), a commercial CAD software suite created by Dassault Systemes and marketed by IBM.
Please keep in mind that the product design file formats stated above are usually the most popular and will work for almost all product design requirements but there are exceptions. Always check with a product design professional in regards to your specific product design project.
A message from the president and owner of the company:
I’m here to assist inventors, companies and organizations with their Product Design file format needs. I will supply you with expert manufacturing design drawings service and solutions.
I look forward to hearing from you,
Anthony
We Design Products for Manufacturing