Now that CAD drawings have become a standard across many industries, there are many CAD programs available, free and paid, that can meet your requirements. Some of the best CAD programs available include SolidWorks and AutoCAD.
There can be somewhat of a steep learning curve when it comes to this technical software, but if you are struggling to create or find your current CAD files there are many designers out there who will be able to make these for you. CAD designers often deep understanding of CAD technology, meaning they can quickly and efficiently create a visualization of your product suitable to send to your manufacturer. Overall, the best approach to switching manufacturer is to obtain your original CAD drawings from your current manufacturer and refine your design (if necessary) from there.
Any CAD program should be able to create the necessary file required but every CAD program has its own file type. While these native files offer you a great deal of flexibility in the specific program you are using, not all of the files can be easily imported from one person to another.
Issues with importing CAD files will slow things down for you and potentially cause costly delays so it’s essential to understand the different file formats.