Question about draft angle
we are using draft angle for bosses & rips..
my doubt is draft angle needed or not for full product.
example : i was designed one thermal printer the draft angle is needed or not for 4sides.
It would be best to post an image of the design and where the features with draft are located.
Draft angle is a requirement for some types of manufacturing (i.e. injection molding).
There are many rules and guidelines to follow for the method of manufacturing selected. If you are simply making a CAD model to test a concept, draft angles may not be needed at this time.
The General Electric Design Guidelines for Injection Molding "book" also contains a lot of useful information for the design of mass produced parts: