I am not wanting to debate, but had a question regarding a single arrowhead for a half section whether it is possible or not. The "may be" sure opens the door for debate within ANSI standards.
Thanks for the discussion and the debate.
"Cutting plane lines, arrows, and section letters may be omitted where cutting planes are coincident with the center lines."
Refer to the illustrations. You will never see two arrowheads on a cutting plane line for a half section. At least not in textbooks.
Below are some examples: 1. Mechanical Drawing/CAD-Communications by French, Svensen, Helsel, Urbanick 2. Technical Drawing by Goetsch, Chalk 3. Technical Drawing by Giesecke, Mitchell, Spencer, Hill, Dygdon, Novak.
NOTE: I am only refering to a half section.
- Any mechanical drafting instructional textbook that is ANSI compliant.
Textbook examples: 1. Technical Drawing by Frederick E. Giesecke, Alva Mitchell, Henry Cecil Spencer, John Thomas Dygdon, James E. Novak 2. Technical Drawing by Goetsch & Chalk. 3. Mechanical...
Per ANSI standard (American National Standards Institute), a half section is represented with one arrow to show the direction of sight for viewing the section. Yes it is true the majority of sections with a cutting plane line (section line) use two arrowheads, but a half section is one of those...
Sorry. I should have been more clear. I meant the Cutting Plane Line (Section Line)arrow head. A half section should represent one arrow. When I do a half section in the DRAWING file, I am not able to omit or shut off the arrow that does not represent the "line of sight" for my sectional...
Regarding #2 question. Is it possible to show one arrow on the cutting plane line ("section line") for a half section. I have not found it to be an option. At least not in a practical location.
Thanks again for your time.
Dan
In drafting terms, section lines would be the same as "hatch pattern" in CAD.
The spokes and ribs must be part of the same body. For example: A casting with ribs.
I have two questions regarding sectioning in a DRAWING file. 1. How to omit section lines on ribs and spokes (single Part file). 2. How to show one arrow on a half section view (single Part file).
These are common applications (ANSI Standards) for individual parts. SW's "Help Index" seems...