Is dimensioning/detailing in isometric view acceptable??

[KENAT]

My senior design checker and I are trying to determine whether dimensioning/detailing parts and assemblies in isometric views is acceptable to the standards (ASME Y14 series).

Looked through 14.3 and the first part of 14.5 and didn't see it explicitly stated.

Both of us are of the opinion it's generally a bad idea and we don't like it but we're trying to verify whether that's actually based on the standards or just ingrained prejudice!

If anyone knows for sure the answer or where we need to look please let me know.

(Plus for now can we stick with the world of 2D drawings, obviously this question doesn’t really make sense for MBD.)

 

[KENAT]

Got me thinking.

We reference Y14.100 as our first standard note. We then bring specific attension to Y14.5 as our second standard note.

Y14.100 does include 14.41 as a reference.

So depending how you look at it we could infer 14.41.

Maybe we need to look again at getting a copy.

 

[ewh]

Also, the comments I made about pictoral views do not reference 14.41, either, but established standards referenced in 14.5.

 

[namdac]

Kenat,
Double Duty means using the same arrow head for more than one dimension.
Regards,
Namdac

 

[KENAT]

Thanks namdac,

Makes sense.

Ken

 

[ewh]

Definitely a no-no. But when do you use arrowheads on extension lines, anyway?