[sdiy] Today's Pet Peeve

[Tim Parkhurst]

In the case of engineering drawings, "Datum" is defined as a reference
point, line, plane, or surface. In this instance, the plural is "Datums."
When GD&T (Geometric Dimensioning and Tolerancing) notation is used, Datum
Symbols are used to call out how the part is to be jigged for inspection,
eliminating a lot of inconsistencies.

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Tim (CAD Geek to the Stars) Servo
---
"Imagination is more important than knowledge." - Albert Einstein





On Sun, Jul 22, 2018 at 6:09 PM, Justin Herrmann <ebn303afxcut at email.com>
wrote:

> The plural of datum is data.
> On 07/22/2018, 8:05 PM Tim Parkhurst <tim.parkhurst at gmail.com> wrote:
>>
>> Agreed.
>>
>> Question: is the plural of datum "datem" or "datums"?
>>
>>
>>
>> Tim (professional designer/drafter: I have a shirt that says "Live to
>> Draft, Draft to Live.") Servo
>> ---
>> "Imagination is more important than knowledge." - Albert Einstein
>>
>>
>>
>>
>> On Sun, Jul 22, 2018 at 5:53 PM, Tim Ressel <timr at circuitabbey.com>
>> wrote:
>>
>>> Drawings with no called out datem.
>>>
>>> --
>>> --Tim Ressel
>>> Circuit Abbey
>>> timr at circuitabbey.com
>>>
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>>
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>
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