Runout

[[Ün...]]

Hello everyone,

There have been changes to the technical drawing and a D reference has been added.

Along with this, the runout value has also changed.
I need to check the runout based on 2 plane points and one cylinder point.

In Calyso, I can select 2 references for runout: 1 plane and 1 cylinder.
I haven't seen 2 different plane points for runout before.

I'm using Calyso 2021.

Could this be related to the new GD&T?

 

 

Benim düşüncem, 

[[Ma...]]

On new GD&T i can not do that.

I believe it's either intersection C-D or your projection

[[Ed...]]

Is the FCF correct? Datum D doesn't constrain any new degrees of freedom. Maybe B-D as a common datum would work. The new GD&T engine has a checkbox for common datums.

[[Zo...]]

D wouldn't affect anything in this case anyways, as Datum-B is already covering all the same constrains

C-D projection is basically wrong, as you are changing a 3d (cylinder) geometry to a 2d (circle). a point instead of an axis

go talk to engineering team and get them either to fix the call-out or explain the design intent

my 2 cent 

 

Edited July 9

[[Ün...]]

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Edgar,

I also tried the BD common reference point, I think it might have been drawn according to the new GD&T.

[[Ün...]]

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Zolfagari,

I understand that D will not affect it. (Also, D and B are created in the same operation.)

According to the previous technical drawing, my client created and checked C-D using a projector, so I also created them using a projector. I understand this is not appropriate.

I sent an email to the client explaining the situation, but I wanted to ask you as well in case I missed something.

[[Zo...]]

honestly the closes i would get to be able to use two plane as datum would be symmetry 

but then the call-out should be change to |0.02|B-D|C|

projection is a tricky thing, it could be projected using the cylinder axis or using plane vector. each could give you a different point