PolyWorks Alignment Issue - How to align the part

GunLake

Involved In Discussions
Hello All,

Figured I'd post here considering all of the forums i can find for Polyworks are dead.. If anyone knows a fairly active one please let me know. So I'm having an issue with a customer rejecting our part for being out of tolerance. Now i have 6 years experience in Polyworks but for the past 6 years I've been aligning it based off of Reference Targets because that's what was requested from engineering at my previous job, Also the customer there didn't use any GD&T at all.

Anyway Customer & I are having a debate on how to align the part, They're rejecting it saying its way out of tolerance but on my end its well within and part looks great. So after calling the project engineer and finding out they're having no fit up issues & that it looks great, I find it hard to believe its way out of tolerance, Their Quality Techs & Engineers are not on the same, Seeing how 1 says its way out of tolerance and the other says its good.

It'll be hard to explain without posting pictures but I'll try to give it a go.
Datum A is a mounting point, Has 2 cylinders on each side and basically a bar goes through them both to lock it in place, Datum B are C mounts. then C is just a plane on the side.
They've aligned Datum's A&B using Pattern Circle Feature for A & Pattern Cylinder Feature for B and C datum using a nominal plane in the center, which i do not agree with, Especially since the Datum C isn't even called out in the center,
I am using a single Cylinder for my datum A and a Pattern Cylinder Feature for Datum B, Then my Datum C is a plane exactly where Datum C is called out at.

I know this will be hard to understand without drawings or pictures.

Thanks,
 

Luis Frausto

Registered
Hello All,

Figured I'd post here considering all of the forums i can find for Polyworks are dead.. If anyone knows a fairly active one please let me know. So I'm having an issue with a customer rejecting our part for being out of tolerance. Now i have 6 years experience in Polyworks but for the past 6 years I've been aligning it based off of Reference Targets because that's what was requested from engineering at my previous job, Also the customer there didn't use any GD&T at all.

Anyway Customer & I are having a debate on how to align the part, They're rejecting it saying its way out of tolerance but on my end its well within and part looks great. So after calling the project engineer and finding out they're having no fit up issues & that it looks great, I find it hard to believe its way out of tolerance, Their Quality Techs & Engineers are not on the same, Seeing how 1 says its way out of tolerance and the other says its good.

It'll be hard to explain without posting pictures but I'll try to give it a go.
Datum A is a mounting point, Has 2 cylinders on each side and basically a bar goes through them both to lock it in place, Datum B are C mounts. then C is just a plane on the side.
They've aligned Datum's A&B using Pattern Circle Feature for A & Pattern Cylinder Feature for B and C datum using a nominal plane in the center, which i do not agree with, Especially since the Datum C isn't even called out in the center,
I am using a single Cylinder for my datum A and a Pattern Cylinder Feature for Datum B, Then my Datum C is a plane exactly where Datum C is called out at.

I know this will be hard to understand without drawings or pictures.

Thanks,


Hello, If the client does not use GD&T and the client aligns it as he wishes
it's hard for you to understand them,

it would help to see the drawings

Regards,
 
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