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Is anyone using or know of anyone else using Schematic Thread display on drawings? 7

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fcsuper

Mechanical
Apr 20, 2006
2,204
Is anyone using or know of anyone else using Schematic Thread display on drawings, which is an option in ASME Y14.6 (image below Fig 2)?
threadssimplified_ief2sj.png


Matt Lorono, CSWP
Product Definition Specialist, DS SolidWorks Corp
Personal sites:
Lorono's SolidWorks Resources & SolidWorks Legion
 
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I have used it in the past, but only on board dwgs.
[edit]PITA

"Know the rules well, so you can break them effectively."
-Dalai Lama XIV
 
fcsuper,

Is there a CAD package that supports this?

--
JHG
 
The Simplified methods are trivial for 3D CAD as they can be generated from the hidden line removal algorithms on stand-in surfaces representing the thread minor and major diameters.

Some users are going full on with depicting actual cut threads on parts.

I recall the drawing style that was required for US patent drawings - I think those are no longer required; cannot imagine that the schematic threads are much used either.

I don't see a demand for the schematic depiction . I think I learned about them 50 years ago in a drafting class and never used them again in any mechanical design. Sure, they jump out and say "here's a screw thread" but so does a fully threaded shaded 3D model, which is it's own can of worms.
 
Like ewh mentioned I too used this in the past for hand drawings but I've never seen it on modern CAD drawings.
 
fcsuper,

I have manually done the simplified representation, particularly on section views, using SolidWorks. This will survive drawing updates. If the schematic representation were available, I would probably use it on occasion.

I would say leave it in the standard. Maybe some CAD programmer will implement it someday.

--
JHG
 
The Simplified representation conveys all the info needed. 40+ years ago, I used the Schematic rep in school but once in industry, only the Simplified was used and that even from the days of hand drafting. The Schematic rep is labor-intensive and provides very little benefit. I wouldn't use a Schematic rep even if the CAD system had that option. I use minimal hidden lines on the drawings I do and using a Schematic rep for threads would just create a cacophony of lines. The shops and engineers I work with have no issue with the Simplified rep, even when working with detailed mold design drawings. Everyone 'sees' the threads in layouts/drawings with the Simplifed rep without issue. But some may like the Schematic rep: to each his own . . .!
 
The last time I used it was when I did hand board drawings, maybe 30+ years ago.

Chris, CSWP
SolidWorks
ctophers home
 
I would like to see more thread sizes added to the SolidWorks library.

I think nobody uses schem threads is because there is no option for it.

Chris, CSWP
SolidWorks
ctophers home
 
Sorry, didn't mean it.

My thread on the issue already existed, I just was excited to see someone caring about both, SW and GD&T and actually trying to do something.

"For every expert there is an equal and opposite expert"
Arthur C. Clarke Profiles of the future

 
No worries. Things are starting out very very slowly with 14.6, but I'll keep these kind of issues in mind in our subcommittee discussion; and also when looking at SW products too. Thx!

Matt Lorono, CSWP
Product Definition Manager, DS SolidWorks Corp
Personal sites:
SolidWorks Legion
 
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