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.
What is the purpose of revision number on the 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 a revision in engineering?
Revision control for manufacturing companies is managed through engineering changes, which are also known as engineering change orders (ECOs). Revisions are used to manage pending and released changes to parts, assemblies, software, drawings, and other documents.
How do you show revision in a drawing?
When a revision involves two or more individual changes on a drawing, each change may be identified by a sequence number enclosed in parentheses preceding the description of the change.
What’s in the 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 version and revision?
Key Difference: Revision is when a major release is made to a software. However, version is when small changes are made and issues are fixed in the released software. For the non-techies, the terms revision and version mean something completely different.
When should I change my revision number?
You should always change the revision level for content that changes requirements. However, it may be acceptable to keep the same revision for minor changes like correcting spelling errors. Make sure that your document control process allows for it if you don’t change the revision level.
What is the revision number?
The revision number is the number of times the document has been saved. That means it should correspond to the Date Modified field in the file manager, sometimes called Date Last Saved.
What is a revision in manufacturing?
Revision Control for Manufacturing
Revision control is a method for documenting and maintaining a part’s current status as well as its history. Whenever a product is released or changed, it will always have a revision level associated with the release or change.
What is a title block on a blueprint?
The title block of a drawing, usually located on the bottom or lower right hand corner, contains all the information necessary to identify the drawing and to verify its validity.
Is the revision block located within the title block?
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.
How do you read a title block?
The following information is located within the title block in the lower right hand corner of a blueprint as shown above:
Name: company or agency who prepared or owns the drawing.Address: location of the company or agency.Name and date: responsible engineers who drew, checked, and approved the drawing.
Why are blueprints revised?
These construction plans are also useful to keep on hand in case you need to want to make modifications later, or need to do maintenance/repair work. They’re also necessary to make sure the project has secured the correct building permits and complies with building codes.
How are modification to a drawing noted?
When a drawing is modified its content changes and it is vital that a note is given on the drawing describing briefly the reason for change and the date that modifications were made.
Drawing modifications
Use soft erasers with much care. An erasing shield will protect areas adjacent to modifications.
What is a revision cloud?
Revision cloud is an annotation type that lets you create cloud-like shapes in a drawing. Use revision clouds to call attention to geometry changes. You can insert revision clouds in drawing views or on the drawing sheet.
