Parallelism to Datum Reference Frame from 1 surface, dowel hole and dowel slot. 1

[GUchida]

Hi,

I'm currently designing some parts where the datum reference frame is formed by the following datum features: Bottom surface called A, Dowel Hole perperdincular to A at MMC, called B, and Dowel Slot referenced to A and B, called C. (See IMG1.png and IMG2.png attached)

I need to ensure a surface that is paralell to the plane generated by the axis of B and C that are perpendicular to A. And I'm in doubt of which of the options are the correct one. (See IMG2.png attached)

Thank you in advance.

 

[Kedu]

ASME or ISO?
Drawing is very blurry, so I cannot identify the correct standard.

 

[GUchida]

ASME Y14.5-2018

 

[Kedu]

Then use composite profile
upper segment 0.03 |A|B|C|
lower segment 0.01 A|B|C|
Upper segment will locate the surface, lower segment will orient your concerned surface

 

[GUchida]

Oh I see!
Thank you Kedu!