Beschreibung

The specification concerns a cover that is inserted into a housing and fastened with screws. During fastening, a certain level of precision must be ensured to maintain a consistent gap with the housing. A viewing window is mounted on this cover. The fastening and the cutout need to be specified.

Length of explanation video (Step by Step guide) : Approx. 12 min.

Variants: no

Difficulty Level: 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:

– collection plane indicator

– GX modifier – Maximum inscribed feature

– CZ – Combined zone

-common datum

-all around symbol

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 1660 Geometrical tolerancing – Profile tolerancing
– ISO 14405-1 Dimensional tolerancing – Linear sizes
– ISO 5459 Geometrical tolerancing – Datums and datum systems

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)
– General tolerances (e.g. ISO 22081)