[step-manufacturing] WHOOPS Attachment Re: Reminder and Agenda UUID conference call this Wednesday

Tue Oct 4 12:40:27 EDT 2022

Martin,
0-The work is coming along nicely!
Unfortunately I have an unavoidable conflict tomorrow. 

Some comments:
1- Hole ENTITY definitions
If one is going to adhere to the spirit of AP 242 in defining a hole depth,
the ARM should be consulted to determine what kind of hole is being designed and map that kind to the hole subtype that is appropriate in the ARM.
I would expect the same logic applies for AP 238 but Dave Loffredo would best to address that.

A brief survey of STEP ARM schemas reveals:
Basic_round_hole
Basic_round_hole_occurrence
Basic_round_hole_occurrence_in_assembly
Conical_hole_bottom
Conical_stepped_hole_transition
Counterbore_hole
Countersunk_hole
Explicit_composite_hole
Explicit_round_hole
Flat_hole_bottom
Flat_with_radius_hole_bottom
Flat_with_taper_hole_bottom
Md_counterbore_hole_definition
Md_counterbore_hole_occurrence
Md_counterbore_hole_occurrence_in_assembly
Md_counterdrill_hole_definition
Md_counterdrill_hole_occurrence
Md_counterdrill_hole_occurrence_in_assembly
Md_countersink_hole_definition
Md_countersink_hole_occurrence
Md_countersink_hole_occurrence_in_assembly
Panel_hole_with_barring
Plug_weld_in_circular_holes_definition
Round_hole
Simplified_md_counterbore_hole_definition
Simplified_md_counterdrill_hole_definition
Simplified_md_countersink_hole_definition
Simplified_spotface_hole_definition
Solid_with_conical_bottom_hole
Solid_with_flat_bottom_hole
Solid_with_spherical_bottom_hole
Solid_with_stepped_round_hole
Solid_with_stepped_round_hole_and_conical_transitions
Spherical_hole_bottom
Spotface_hole_definition

Some of these are 'design features' and some are 'manufacturing features'.
(Md acronym is used to avoid name space clashes).

and of course there is the MBx-IF recommended practices on PMI and user defined attributes.

2- page 10 questions.
Something to look at over the next week. I am not sure Rocky's team is at a point to answer the fastener products question.

I would prefer to recast the question:
"What features can represent a hole?" into 
"What are recommendations from each (relevant) AP as to how to represent a particular kind of hole?"

regards,
Tom

> On Oct 4, 2022, at 10:29 AM, Martin Hardwick <hardwick at steptools.com> wrote:
> 
> This time with the attachment
> 
> On 10/4/2022 11:27 AM, Martin Hardwick wrote:
>> This weeks discussion will be on how to represent the engineering requirements identified by a UUID.
>> 
>> For example, a hole depth could be represented by
>> 
>> 	• A linear distance dimension
>> 	• A depth parameter on a design feature
>> 	• The linear path of a manufacturing feature
>> 	• The depth on a drilling operation
>> 	• The distance between two trim planes on a cylinder
>> 	• A "magic" string within a feature name
>> Topic: UUIDs for Digital Twins and the Digital Thread
>> Time: Oct 5, 2022 09:30 AM Eastern Time (US and Canada)
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>> 
>> -- 
>> Martin Hardwick
>> President STEP Tools, Inc.
>> Cell: 518 253-0596
>> "There are billions of STEP files and millions of STEP-NC files"
>> 
> -- 
> Martin Hardwick
> President STEP Tools, Inc.
> Cell: 518 253-0596
> "There are billions of STEP files and millions of STEP-NC files"
> 
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Thomas Thurman
Principal Electrical Engineer, Rockwell Collins (Retired)

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