Single Part Numbering Largest Part

[Flies-Eyes]

Hoping someone can refresh my memory.

For Single Part Numbering Advance Steel use the largest object.  I have read conflicting documentation as to whether it is using the Object Length or Object Weight to determine the 'Largest' object.

[johnjmbennett · Accepted solution]

Hi Murray,

it is the physical weight of the object that determines which is the main part in an assembly group.

model a base plate that is really thick and therefore a large mass weight, and attach a small stub column that is lighter mass . The base plate will become the main part of that assembly.

https://m.youtube.com/watch?v=GoXGhloLxv0

you can override this by setting a part to main part by using the define main part command if model number previously by the equal part detection method or option in properties of no numbering has been run yet.

[Flies-Eyes]

I was thinking more about my single parts which area alocated a Lot/Phase - Model Role - Count

I couldn't remember how count order was allocated.  Based on the responses, it sounds like the object weight drives the count number allocation as the first priority. 

[johnjmbennett]

Hi,

So how the number is assigned for parts and assemblies is based upon the equal part detection,  typically the lowest number has the most parts found to be the same geometry in the model.

so if you have 100 plates of the same shape, thickness and holes, you have a different plate the 100 plates gets the lowest number value. 
it the same for assemblies,  assemblies with the same geometric arrangement receive the lowest assembly number.

There are a few settings in the management tools, that influence these method,  for elements like columns that opposing each other, can have different numbers,  how welds are applied etc. 

and there are post numbering rules that can swap out single part with the main part number. 

and methods that use the drawing number , placing a temporary ID reference until the drawings are created.

but behind all these is the equal part detection, that detects the geometry of the parts and the assembly relationships.

and try not to model it too far from the origin , as the engine to detect the geometry, well it can struggle when it gets too far away and parts that are the same can be seen differently.

HTH

[bigcarl5000kg]

Hi @Flies-Eyes,

my experience with AS says, the automatic numbering for single parts depends on (and in this sequence):

1) Profiles

- number (amount) - descending

- shape name (FL, L, ...) - ascending

- shape size (object name) - ascending

- length - ascending

2) Plates

- number (amount) - descending

- thickness - ascending

- width - ascending

- length - ascending

In my opinion, numbering is not directly dependent on weight.

[Flies-Eyes]

Interesting. That sounds familiar also.  Also interesting to note that it is using Length, not Weight, for this process.  This must be where I am getting my wires crossed.

[bigcarl5000kg]

because the weight also depends on the length, the question is probably answered 😁😉🤟

PS: weight also depends on factors such as holes, edge cuts, etc. therefore not so relevant for numbering