I agree with Powerhound; you could use two single-segment positional tolerances if the two segments referenced different datums. This could create a square or rectangular tolerance zone. Neither segment would have a diameter symbol.
If the datum references need to be the same for both...
XPlicator,
I think the two methods would be equivalent provided that the hole depth is not 3 times greater than the projected tolerance zone height; in that case the two callouts would be difference (refer to attached sketch). I believe the factor of 3 is coming from the ratio between the...
Guys,
It seems like KENAT is saying that he has no control over where the machining goes (since this is not the area he works in). The solution for checking, on the other hand, might depend on his input. So I don't think he's part of the problem at his company; I think he's trying to be part of...
Weavedreamer: I agree; your sketch describes two fixed tolerance zones and two floating tolerance zones. If they are both projected, then both zones are located outside of the part.
Ringman: Since I'm not an engineer, I can't answer your latest question (why is further refinement of...
Kenat,
Don't send your machining abroad. Send it to me!
;-)
The machine shop I work for just installed a huge horizontal mill pallet pool with 42 pallets, and a 5-axis vertical with 32 pallets. We feel that we'll be able to compete with China because we're eliminating setup time and doing most...
I agree with Ringman. ASME Y14.5M-1994 is clear in stating that projected zones exist OUTSIDE the part only; the projected zone is meant to be in the space that will be occupied by the mating part.
In other words, when "Circle P" is applied, the tolerance zone no longer extends into the...
