It’s been more than 10 – 12 years, but I still remember buying all the required material such as a drafter, HB pencil, 2H pencil, and a 2B pencil; during my first year of mechanical engineering.
Small to medium companies use on an average three or more CAD formats in their design process. Different CAD systems are used internally. This alone would not pose a problem for designers if every CAD system were created equal.
There’s a horde of offshore CAD firms that offer design and CAD conversion services using the low cost hourly based price models.
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