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This means the unthreaded hole should be dimensioned in a view where it appears circular or in a section view where the cutting plane contains the hole's axis. Neither of these are currently shown, so an additional view is probably required.ASME Y14.5-2009 para. 1.4 (g) said:Dimensions should be shown in true profile views and refer to visible outlines.
Here's, I think, where my basic misunderstanding lies. The set screws on this part need to be positioned to hit a certain groove in the mating part, and the hole for the mating part needs to have as little play as possible. What datum reference frames would be best to use here?pylfrm said:If the threaded holes are for set screws that engage another part inserted into the unthreaded hole, then the combination of datum reference frames currently used does not make much sense.
My impression was that the tolerance for basic dimensions was called out in the FCF
Here's, I think, where my basic misunderstanding lies. The set screws on this part need to be positioned to hit a certain groove in the mating part, and the hole for the mating part needs to have as little play as possible. What datum reference frames would be best to use here?
The other thing I'd like to specify is that the hole on the angled face should be as "in line" as possible with the half inch tab on the top of the part.
pylfrm said:Presumably there are certain features on this part that determine where the groove in the mating part ends up when assembled. Consider using those features to establish the datum reference frame used to control the position of the set screw holes. It's hard to be more specific without seeing the drawing of the mating part and knowing how the assembly works.