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  1. lowerp

    datum feature question

    I believe this reflects what Burunduk is stating, minus the FCF.
  2. lowerp

    datum feature question

    I have a dash bezel designed with 4 rectangular pins that are used for locating and affixing this part to the dash at assembly. All 4 rectangular pins are equal size, length, and will be pressed onto the dash "equally". I want these 4X pins to be my datum feature B. I plan to have two position...
  3. lowerp

    Fixture design for inspecting part with datum targets

    Thanks all for the timely responses, much appreciated.
  4. lowerp

    Fixture design for inspecting part with datum targets

    For a plastic molded part that has defined datum targets and requires inspection in the restrained condition; do the faces of the corresponding inspection fixture components which contacts the part, mirror the parts geometry?
  5. lowerp

    Multiple datum reference

    Thanks for the responses. Am I correct in saying to dimension basic between all the holes but in any configuration I want?
  6. lowerp

    Multiple datum reference

    A plastic injection molded automotive panel is designed with 6 holes intended for assembly to a chassis with fasteners. Of the 6 total holes, there are 3 separate sets (2X 6.0 dia, 2X 5.5 dia, 2X 5.0 dia). All of these hole features have equal importance and there is no specific order of...
  7. lowerp

    Datums and general GD&T assistance

    I have a customer with a plastic injection part design, similar in size and shape to that of a scotch magic tape dispenser, but with more bosses, ribs, and holes. This is a key component in a larger assembly. They state tolerancing is per ISO 8015:2011 and ISO GPS. They have 7 different datums...

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