The most common one I see is the use of 'PL' (plate) instead of using 'BAR' for material that is BAR material. Generally the detailers are pretty good. For the last 3 years, I've been sealing connections for steel fabricators and there is a fairly wide range in the drawing content. One fabricator, who produces excellent drawings, still does them by hand... freehand, not drafting instruments... they are a real treat, and some of them are worth framing.

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So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

When I was working as a machine designer back in Saginaw, MI (in the 70's), one of the draftsmen on our team was an old German who had been trained before the war (he served in the Wehrmacht in WWII) as a metal worker making fine art objects like lamps and stained-glass items. While he used the normal drafting tools for complex assemblies and such, when it came to details, he did most of them freehand and they were almost works of art themselves. Now the chief draftsman always was complaining, but he was so efficient that most of the people he was assigned to do work for never complained because he was always done on time or even a bit early.

John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without

That's exactly what these drawings are... it's so nice to see a picture, rather than an AutoCAD drawing... On circular sectons, even shading is added to show the curvature. It's a lost artform.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik