What is the purpose of a revision block?

What is the purpose of a revision block?

The revision block, located in the upper right hand corner, shows details about the changes that were made to roll the revision. The Revision Block includes the revision, the description of what changes were made, the date of the revision, and approval of the revision.

What is main purpose of revision block located on the technical drawing )?

During the life of a product, parts that are used for many years, may be revised several times to improve performance or reduce cost. After a drawing change request is made, the drawing is modified. Any change to a drawing after release, shall be recorded in the Revision History Block.

What is a drawing revision block?

As changes to a component or system are made, the drawings depicting the component or system must be redrafted, updated and reissued. As each revision is made to the drawing, an entry is placed in the revision block.

What is a drawing revision?

The term “Drawing Revision” refers to modifications that are made to a drawing after it has been signed and issued. The first revision to a drawing takes place after the initial issue of the drawing is signed and released for bid or construction.

How do you show revision in drawing?

Revision columns are located in the upper right corner or next to drawing the title block. Revision columns include the revision letter of the drawing, a short description of the changes made between this revision and the prior one, and the date the revision was made or the revised drawing was approved.

When should I change my revision number?

Under most circumstances, the revision number of an existing document will not need to be changed. That is, if the document is created new within the vault, Meridian Enterprise will assign the correct revision number. When the document is revised in a workflow, its revision number is updated accordingly.

What are the four types of technical drawing?

There are many types of technical drawings, including: 3D drawings (isometric, perspective) • Exploded-view 3D drawings • Complete working drawings • Detail drawings (2D orthogonal projections) •Diagrams are another form of technical drawing with looser, less universal standards.

What is the purpose of drawing revisions?

The revision of drawings is about keeping drawing records up to date to accurately show the details of a plant’s existing construction or to define the scope of what is to be installed or modified for a project.

What is a part revision?

Revision letter, a letter added to a drawing or other document number to indicate that a change was made to the original document. The revision letter or number is the change status or level of the document…. Rule: The Revision is not part of the part number. Rule: Revision is never marked on the parts.

What is the purpose of revision numbers on the drawing and who issues a revised drawing?

Answer: In general, revisions numbers / versions 1 and 2 are for little changes and things in work, while revision letters are for major, released changes. When you make major changes, issue a formal revision letter change for the new drawing.

What is difference between version and revision?

A version is an iteration, something that is different than before. A revision is a controlled version. Webster’s dictionary describes a “revision” as the act of revising, which is to make a new, amended, improved, or up-to-date version.

What is a revision code?

Changes are usually identified by a number or letter code, termed the “revision number”, “revision level”, or simply “revision”. For example, an initial set of files is “revision 1”. When the first change is made, the resulting set is “revision 2”, and so on.

When is an engineering drawing revision block empty?

Engineering Drawing Revision Block. As changes to a component or system are made, the drawings depicting the component or system must be redrafted, updated and reissued. When a drawing is first issued, it is called revision zero or dash (-), and the revision block is empty.

What do you call the first revision of a drawing?

When a drawing is first issued, it is called revision zero or dash (-), and the revision block is empty. As each revision is made to the drawing, an entry is placed in the revision block.

How is a reference block useful in engineering?

The reference block lists other drawings that are related to the system/component, or it can list all the other drawings that are cross-referenced on the drawing, depending on the site’s or vendor’s conventions. The reference block can be extremely helpful in tracing down additional information on the system or component.

What happens when a revision 2 drawing is modified?

For example, if a Revision 2 drawing is modified, the new drawing showing the latest modifications will have the same drawing number, but its revision level will be increased to 3. The old Revision 2 drawing will be filed and maintained in the filing system for historical purposes.