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assembly arrangements
- Thread starter moog2
- Start date
Depending exactly what you mean adjustable assemblies or even families of assemblies may be what you're looking for.
If you mean something like a hydraulic piston that may be modelled extended different distances or something then I'd look at adjustable assemblies.
If you mean something like a hydraulic piston that may be modelled extended different distances or something then I'd look at adjustable assemblies.
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beachcomber
Mechanical
Adding to kenats response - if you have an assemby that has several known positions then you may be best using family of assemblies. You can then set constraints to give you the positions you require.
If the assembly is required to adjust to any position, as in Kenat's hydraulic piston example, then use adjustable.
Even if you use families of assemblies, you can always make one of the members adjustable by removing some constraints for that member.
I have done this with hydraulic cylinders by having 3 family members - Fully Extended, Fully Retracted and Adjustable.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
If the assembly is required to adjust to any position, as in Kenat's hydraulic piston example, then use adjustable.
Even if you use families of assemblies, you can always make one of the members adjustable by removing some constraints for that member.
I have done this with hydraulic cylinders by having 3 family members - Fully Extended, Fully Retracted and Adjustable.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
- Thread starter
- #4
There are a number of ways around this. You could probably do it with adjustable assy's just having no constraints active in the bracket sub-assy but I'm not sure how well it would work as I haven't tried it.
One way may be to just use each individual bracket and in occurance properties exclude them from the parts list, then have a non graphic part with the file properties to feed the parts list. Or, a subtle variation is to make one bracket the 'prime' one that feeds the parts list, then exclude the others in occurance properties.
However, this leeds to auto ballooning issues.
One way may be to just use each individual bracket and in occurance properties exclude them from the parts list, then have a non graphic part with the file properties to feed the parts list. Or, a subtle variation is to make one bracket the 'prime' one that feeds the parts list, then exclude the others in occurance properties.
However, this leeds to auto ballooning issues.
Posting guidelines faq731-376 (probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484
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- Thread starter
- #6
beachcomber
Mechanical
I think I see what you mean -
the brackets are supplied as a kit so you have modelled them as a sub-assembly, but require fixing in different positions in each higher assembly.
I don't think there is a way of doing this other than familiy of assemblies using "alternate position" option.
What you will need to do is work out how the brackets are related in each "kit" and build your constraints accordingly.
Your drawing will also be correct because alternate position assemblies are recognised as being the same part.
Note:
If the brackets are NOT SUPPLIED as a kit then you should really just position them individually in the higher assemblies.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
the brackets are supplied as a kit so you have modelled them as a sub-assembly, but require fixing in different positions in each higher assembly.
I don't think there is a way of doing this other than familiy of assemblies using "alternate position" option.
What you will need to do is work out how the brackets are related in each "kit" and build your constraints accordingly.
Your drawing will also be correct because alternate position assemblies are recognised as being the same part.
Note:
If the brackets are NOT SUPPLIED as a kit then you should really just position them individually in the higher assemblies.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
My point was, a kit may be a part number from a parts list/item list/BOM point of view, but from a physical model point of view, it isn't an assembly.
So, unless you have some real driving reason for insisting on treating them as a sub assy I wouldn't bother and would fudge the parts list/BOM if necessary.
So, unless you have some real driving reason for insisting on treating them as a sub assy I wouldn't bother and would fudge the parts list/BOM if necessary.
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- Thread starter
- #9
beachcomber
Mechanical
I've just re-read kenat's posting and I think you could use an adjustable assembly. As he says, all you would do is add the parts into the 'kit' assembly without any constraints.
Then in the higher assembly make the kit adjustable and add constraints onto the kit parts to position them.
This is where an understanding of adjustable assemblies is required.
Normally you apply constraints to an assembly in order to position it.
With adjustables, the assembly is ignored and constraints are applied to the individual parts.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
Then in the higher assembly make the kit adjustable and add constraints onto the kit parts to position them.
This is where an understanding of adjustable assemblies is required.
Normally you apply constraints to an assembly in order to position it.
With adjustables, the assembly is ignored and constraints are applied to the individual parts.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.
- Thread starter
- #12
Adjustable assemblies is in help, but I pretty much had to teach myself and won't claim to be an expert. I did ask an 'expert' once during some training a while back and he knew less than I.
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