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Re: Possibility for renaming using template box tool

July 5, 2016, 11:04 pm
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Hi Paul,

 

What I am trying to accomplish is to have file names without underscore line or any other sufix thay may appear when I open STEP file of assembly.

The STEP file which I have is probably (or 100%) saved from Creo assembly in .asm extension.

 

It starting to be interesting when I try to do this renaming job with assembly which count over 500 parts and of course with several "reuse" items .

So far I didnt know for this "Save copy" solution with "txt" importation from Excel which has been posted by lokesh lokesh.

And of course, I do not need to add any comment about editing in Excel which is one very powerful software tool .

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Re: Repeat region quantity in multi-staged assembly

July 6, 2016, 1:44 pm
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David,

 

This seems to have worked in the sense of separating the qty for the screws, but now I cannot filter by item due to having asm.mbr.cparam.

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Re: Repeat region quantity in multi-staged assembly

July 6, 2016, 7:25 pm
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I'm away from Creo until next Monday - so I'm going from memory.

The parameter will have to be typed into the model tree column selector; I think they won't show otherwise.

 

I don't see why filtering on the Step would fail (asm.mbr.cparam.Step <> "STEP_1", I think,for example), but you should be able to create a rule for the Simplified Reps based on the component Step parameter. This will automatically filter the Repeat Region based on the relevant simplified rep.

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Re: Repeat region quantity in multi-staged assembly

July 7, 2016, 7:58 am
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So it's not actually failing on the asm.mbr.cparam.assembly_step itself. When I try to filter by item, it states, "you may not perform this action due to symbol asm.mbr.cparam." So its not allowing me to exclude by item because of my two component parameters that are in the repeat region.

 

I've tried looking into how to create the rules by relations, but I can't find anywhere that explains how to use the commands, I just know where to find them. Could you elaborate on how to create the rules for the simplified reps based on the component step parameter?

 

Also with the model tree column, when I am in the model tree column selector, there is no component parameter type. The only parameter options under the "type" drop box are ... model, database, features, annotation elem, cabling and mass properties. I've added both parameters in manually under model but it adds the parameter as a part and not a component. This isn't a big concern though, I just created a mapkey, like you said, that would input both parameter as I selected the different components down the list. Then I can actually change the value in the repeat region.

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Re: Repeat region quantity in multi-staged assembly

July 7, 2016, 2:05 pm
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I may recall this incorrectly, but it is filter by rule I was thinking of; filter by item is picking one entry at a time.

 

Select the model tree selector and choose model (or feature??) There will be other choices below that, and eventually you get a list of other parameters with a blank field at the bottom. You can type in the parameter name in the blank field.

 

The simplified rep control is by Rule, and rules are generated the same way as using the Binocular search tool, except in the Simplified Rep it's very useful to save the query. I think the only real trick is having to click on a blank pulldown to see the "new rule" dialog. PTC is too clever when it comes to hiding things like that.

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Re: Repeat region quantity in multi-staged assembly

July 8, 2016, 8:08 am
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Okay I got the tree column to work, I had to select feat param.

 

So when I filter by rule, and enter a name it does not bring up the window you mentioned (similar to search window). Instead it just asked for another rule name (for a second rule) and I can cancel and then go to edit where it takes me to notepad.

 

What I really want is a "how-to" when entering rules. I cannot find anything that explains how to use the commands. How does PTC not have a help page explaining how to input each command to do different things. All I found on the internet is to use asm.mbr.cparam != (file name) if you want to remove and asm.mbr.cparam ==(file name) if you want to include.

 

So how does this work for my situation, can I make a rule that will filter depending on the value of the reported parameter?

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Re: Repeat region quantity in multi-staged assembly

July 8, 2016, 8:18 am
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I'm sorry I spoke too soon, I originally tried using &asm.mbr.cparam.assembly_step !=2, then I recalled when I was entering data through the tree I saw that string values used " " <--- those so I went back into the rules and it worked.

 

I'm still on a search for how to use those commands though.

 

I want to thank you, a lot David, for helping me through this.

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Re: Repeat region quantity in multi-staged assembly

July 8, 2016, 9:51 am
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To catch other readers of this thread up:

Filter by rule on a Repeat Region brings up a short menu including an entry to edit the rules which leads to a notepad/plain text editor. Rules are of the form (a) (test) (b) where (a) and (b) are parameters or constants and (test) is an equality (<,>, <=, >=, <>, !=, ==) The rules are additive filters and it's easy to come up with rules that eliminate all items from the repeat region, but since they are dynamically applied, it's easy to alter the offending ones. The repeat region filter rules allow no 'if' statement; I think they don't even allow any relation computations; so if there is a need for a computation (like matching part of a name or combinations of parameter values), a repeat region relation (in the repeat region relations menu) can be used to make that calculation and store the result in a repeat region parameter.

 

Simplified Rep by rule depends on the Search tool to create a Query and looks (and may be) the same as the Rule editor for Layers and just finding things. It is complex because what it does is complex. In my classifications of tools, it is one that I find to be both effective and worth the effort; it is also something is tougher for me to describe.

 

This seems like a great place to note that you can save a table and, with it, the repeat region filter and repeat region relations and all the formatting so it can be reused on other drawings by using Table - From File.

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Re: Repeat region quantity in multi-staged assembly

July 8, 2016, 2:30 pm
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Alright, so something has come up, now that I have completed all my parameter inputs. I can't seem to get my custom index (asm.mbr.cparam.item_number) in numerical order. If I go to repeat region menu and select Fix Index I get the same problem as before where I cannot fix index due to the symbol asm.mbr.cparam. I found a guide on how to create an Alpha numerical index but it uses relations to change the rpt.index parameter, but I'm pretty sure this wont work for me. I really like the idea of controlling what the components item number is. I also tried changing my index back to rpt.index to see if I can just adjust my part names according to the index numbers but I still get the "cannot due to symbol asm.mbr.cparam. I was hoping there was possibly a rule or relation I could use to say make this column in numerical order.

 

This is the PTC support solution for changing to alpha numeric values, I think you need support access to see this information though.

https://support.ptc.com/apps/solution_preview/solution/lang/presolution?lang=en&n=CS106519

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Re: Repeat region quantity in multi-staged assembly

July 8, 2016, 3:51 pm
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Look at the Sort for the repeat region. I don't recall if it is under the Repeat Region menu or when you select the table under the Select Table menu after you pick a cell in the table. In any case, if you want the BOM balloons to use the cparam, the Table Properties that are only accessible after the entire table is selected is where you set what the BOM balloons will use for numbering.

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Re: Changing Name of many models in relation

July 18, 2016, 10:45 am
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Also, you should have a look at this thread: Possibility for renaming using template box tool

I've learned from it that there is a way to export the assembly "structure" to a file and then manipulate the component names in an external program (e.g. Excel), then save it and import it back during the assembly save-as operation.

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Re: Spiral assembly/pattern of chain

July 19, 2016, 11:38 am
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Probably your chain links that have fixed distance between the pins do not fit the patterned along the curve points.

 

These points along the curve patterns produce nice looking figures, but the geometry is plain wrong, because the point pattern is based on along-the-curve distances - whereas in reality it should be based on a chordal length.

 

It shouldn't be difficult, just tedious to assemble the 210 links using slot constraints.  Use of mapkey and repeat function should speed up the task considerably.

If you could attach your model, I could get you started.  But I hope you look in to the other threads on this forum - the moveable cable-carrier assembly made by Antonius Dirriwachter comes to mind: Mechanism flexible wire tray issue, similar to a chain

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Is there any tutorial for "Assembly Process Planning"?

July 22, 2016, 1:03 am
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Assembly Process Planning was part of erstwhile AAX module. I could not find any learning material other than the Help Files. None in Learning Exchange or in Precision Learning.

It is possible that I have missed looking at a particular place. Could some one give me a lead?

Thanks.

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Re: Is there any tutorial for "Assembly Process Planning"?

July 22, 2016, 5:24 am
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There is a course called Process for Assemblies in Precision LMS, you have to look for it by selecting All Creo for the search. There several listing but the one with the following seems to be the latest (last one listed): COA-CEK2994.

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Re: Is there any tutorial for "Assembly Process Planning"?

July 24, 2016, 11:11 pm
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Thanks Kevin. Looks like the Course is no longer supported. Yet, something to go through and understand the steps.

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Family table instance drawings

July 25, 2016, 8:51 am
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I''m pretty new to family tables, been reading up/ clicking around with it for the last week.

 

We produce frames for crawler tracks. Each of our frames fits into one of 8 types of track, there will then be 6-10 different sizes of that track, and each frame has around 40 components. Half of these components are common and are set as library parts. Half of them will change height/ width on most frames in that design to match the size changes and are saved as their own unique component.

 

So every non-library component for every frame is it's own unique part with it's own unique file. Despite them only having 1-2 dimensions changing. A change to one of these components will often be copied across all similar components for each size track in that type, and this is not a quick thing to do. I believe this is the kind of thing that can be made significantly easier to manage using family tables.

 

I've worked out how to do the components as their own family tables. And pull them in to another family table driven assembly for each size of frame.

 

I can then produce the Generic drawing for each component and another generic one for the assembly. And from those save instance drawings using replace+save as for each frame, every drawing will come through fully detailed except for anything that is 'unique' to that frame, dimensions in the drawings will auto update if I change them in the table, life is good.

 

The problem comes with needing to change anything non-dimensional. i.e weld sizes. Having produced the drawings for every instance if I then change one of the weld sizes in the generic, it doesn't pull through.

 

It also falls down with any new features, for example if I add a chamfer to the generic, it will show up in every instanced drawing, but requires detailing in each one individually; or I could add the detail to the generic, and redo all the 'save as', but this would overwrite any of the detail that is actually unique to each instance. I tried adding the dimensions for the new features directly in to the model, but this still requires I go in to each drawing and use show model annotations before it will appear.

 

Is this within the functionality of family tables? I'd read that they're really only meant to be used for producing the generic model+drawing for stuff like bolts, and thinking I might be biting off more than I can chew trying to get them to control 90% of the assembly drawing.

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Re: Family table instance drawings

July 25, 2016, 11:31 am
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For your weld sizes how are you setting up your model to give the specified information? I would think you should be able to get those to display correctly. Adding new features to a model using a family doesn't mean those features will automatically show the dimensions or have dimensions applied to them, it works the same as if you were adding a new feature to a model that doesn't use a family table. What happens when you replace a model with another is it will display the values for the dimensions shown that are common between the models. If a dimension is shown and the instance has a different value for the dimension, when you use replace the dimension should update accordingly. If the dimension isn't used by the replace model, the feature is suppressed, the dimension will be suppressed in the view annotations. If you were to replace that model with another that uses those dimensions they will show because they were shown initially. If you don't show a dimension for a feature or add a feature later, the dimensions don't automatically show if you are updating the model or are using use replace. To do what you want you have to know what that 90% is and that it's not changing and detail it on your initial drawing before using replace and save-as to create new drawings otherwise you will need to go into each and update as needed. There isn't a link between drawings.

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Re: Family table instance drawings

July 26, 2016, 12:05 am
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Weld sizes shown in a symbol.

 

"There isn't a link between drawings."

I think that sums it up, everything works 'correctly' first time through or if I re-save things from the generic drawing. But I was hoping there was a way to update the generic and have instance drawings A,B,C etc. automatically update, but from what you're saying that is not how it works. Cheers for the help.

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exporting drawing

August 8, 2016, 3:58 am
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When we export a drawing from CREO to AutoCAD, it is in either model space or paperspace with specified scale as in CREO. My customer wants AutoCAD drawing where the object will be in model space ( 1:1 scale) and the drawing in paper space. Is it possible to export from CREO to AutoCAD in this manner?

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Re: exporting drawing

August 8, 2016, 10:48 pm
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I think is not possible. You can export a drawing in model space or in paper space or a sheet in model space and other sheets in paper space.

Try to export in model space and then in autocad put it in paper space...

 

Best Regards

 

AMinati

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