Cover sheet IF

27,00 

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Practical example of a cover sheet. Covers the function-oriented definition of the datum system, the specification of hole patterns and a maintenance window, the practical application of the feature principle (ISO 8015) using an Altered Default, and compares a function-oriented datum system with a commonly used non-functional approach.

When purchasing this product, you will receive a video (step-by-step guide) and a PDF file.

Beschreibung

A cover sheet is specified. The focus is on a functional defintion of the datum system, the handling of the screw connection (hole pattern) and the specification of a maintenance window.

The question of how to deal with cut or punched contours in practice is clarified. For this purpose, the feature principle (ISO 8015) is adapted by specifying an „Altered Default (ISO 8015).

In a second variant, the functional approach (datum system) is compared with a solution defining a non-functional datum system that is commonly used in practice.

Length of explanation video (Step by Step guide) : Approx. 27 min.

 

Variants: Yes – 2 Variants

Difficulty Level: Variant 1: Suitability 1-2 | Variant 2: Suitability 1-2

 

Description of the level of difficulty (suitability for the user):

1 – The user has basic knowledge but has not yet used ISO GPS frequently in practice and takes first steps.

2 – The user has basic knowledge but is not proof about using ISO GPS and would like to gain more general confidence.
More „special“ or complex modifiers (these are usually listed in the example description) are applied selectively.

3 – The user has sufficient knowledge, can already use frequently used ISO GPS tools without difficulty,
and would like to deepen knowledge selectively based on typical functional descriptions,
which is usually also product-specific (e.g., snapping features (latching hooks) on a plastic injection-molded part, special demand hole patterns, i.e. multi-level patterns etc.)
used in the example (i.e., listed in the description) (e.g., direction only or certain combinations of dimensional tolerancing, as well as SIM or similar modifications).

4 – The user has extensive knowledge, has been working with ISO GPS for a long time,
and would like to learn about very specific applications or modification operations, which usually describe more complex functional requirements and products.
This requires, for example, situation features, reference elements, filter information, association modifiers etc.

Used specification modifiers

In addition to the commonly used tools (profile, position, datums, etc.), the following modifiers were used:

  • GX modifier – Maximum inscribed size größtes oder maximal einbeschriebenes Element
  • All around
  • UF modifier – United feature
  • CZ – Combined zone (Common zone)
  • Altered Default
  • Common datum

Standards

The following standards are helpful or have been used:

  • ISO 129-1      Technical product documentation (TPD) – Presentation of dimensions and tolerances

  • ISO 1101       Geometrical tolerancing – Tolerances of form, orientation, location and run-out

  • ISO 14405-1: Dimensional tolerancing – Linear sizes

  • ISO 5459       Geometrical tolerancing – Datums and datum systems

  • ISO 8015       Fundamentals – Concepts, principles and rules

 

Additional information

This is not a complete specification. For example, the following topics are not covered:

  • Edges of undefined shape (ISO 13715)
  • Indication of surface texture (ISO 1302 bzw. ISO 21920)
  • Data fields in title blocks and document headers (ISO 7200)