Y14.2 quote help 1

[ewh]

Can someone give me the pertinent paragraph number regarding section line width, along the statement? I don't have this standard available, and an edict has been passed down to use phantom "normal" for the lines. I'm fairly certain that section lines are phantom "heavy", but need a reference before I can claim violation of the standard.
Standards are supposed to be followed here, but no one has access to those standards (other than personal copies). While I have many of them, I don't have 14.2.
I don't mind varying from the standard, but I do feel that a list of those variances needs to be maintained.
TIA!

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]

 

[pmarc]

ewh,

Per paragraph 2.10 of Y14.2-2008 following lines are allowed:
(a) evenly spaced dashes;
(b) alternating long dashes and pairs of short dashes. The long dashes may vary in length, depending on the size of the drawing;
(c) Figure 1 (line 11), same as lines 9 and 10, except the dashes between line ends are omitted.

Picture attached below explains what shoud be the thickenss of those lines:

http://files.engineering.com/getfil...4d8e-b9c4-f97c5fdee0bf&file=section_lines.JPG

 

[Belanger]

FYI -- I think what you guys are talking about is properly called a "cutting plane line" or "viewing plane line." A "section line" is the lightweight cross-hatching in a section view, if I recall.

John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems

 

[ewh]

Thanks guys!
Yes, I am looking for the cutting plane line format.

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]

 

[pmarc]

Yep, you are right J-P.

 

[ewh]

pmarc,

Does the standard specify a line weight?

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]

 

[pmarc]

As shown in attached picture - it was taken directly from the standard.

Paragraph 10.2 however is not mentioning anything about line weight.

 

[pmarc]

There should be 2.10 not 10.2

 

[pmarc]

If you are asking about width of the line, paragraph 2.1 says that 'thick' line shall be understood as 0.6 mm minimum.

 

[ewh]

Thanks, pmarc!
The picture is worth a thousand words!

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]

 

[pmarc]

Glad I could help.

 

[tk369]

If I may. Line weight is mentioned in the first part of the standard. This is copied directly from the standard:

"2.1 Line Widths
Two widths of lines should be used on drawings (see
Fig. 1). The thin line width shall be 0.3 mm minimum.
The thick line width shall be 0.6 mm minimum. These
approximate line widths are intended to differentiate
between thick and thin lines and are not values for control
of acceptance or rejection of drawings. All lines of
the same type shall be uniform throughout the drawing.
The ratio of line widths should be approximately two to
one (2:1)."

Cutting plane lines and viewing plane lines are thick per para 2.10 mentioned above.

ted kralovic

VisVSA, NX-6, Macbook, iPhone 3GS, among others

 

[ewh]

Now I'm confused again... I thought that there were three line widths - thin (dimension, extension lines), normal (part outline) and thick (section cutting planes).
I'm going to have to get my hands on a copy of that standard!

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]

 

[looslib]

ASME Y14.2M-1992 only has 2 line widths defined. In section 2.1: "One width of line is acceptable on drawings prepared by a CAD system".

UG/NX uses three line widths which can be related to pens when plotted. They use the thin, normal, thick names.

Pro/E uses 8 pen definitions for various lines which are usually mapped to only 2 or 3 widths when plotted.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[ewh]

Thanks, Ben. My mind was stuck way back pre-'92, when three widths were used on board drawings.

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]

 

[tk369]

To all:
The company I work at has a full subscription to all IHS documentation, ASME, ISO, DIN, you name it.

ASME Y14.2M was rendered INACTIVE in 2008, and replaced by ASME Y14.2.

I stand by my statement that there are only two (2) line widths in use. NX doesn't count, and that's what I use!

..tk


ted kralovic

VisVSA, NX-6, Macbook, iPhone 3GS, among others

 

[looslib]

tk,
Do you change your system defaults so you only have 2 line widths in NX? Are your plotter drivers set to plot only 2 line widths?


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[tk369]

looslib:
No, we set ours to plot single width only. We had too many problems with the plotter when we plotted even 2 widths.


All of our plots are 1/2 size for checking purposes. Since our drawings are electronically scanned into our database as tiff images, there are no readability issues either.




ted kralovic

VisVSA, NX-6, Macbook, iPhone 3GS, among others