Controlling Positional Tolerance of a Slot Axis
Controlling Positional Tolerance of a Slot Axis
(OP)
I have a slot (elongated hole) on my part which I wish to give a positional tolerance. The size tolerance for the slot is given, but I wish to control the centre of the slot within a diamteral zone. Can I use the diameter symbol in the FCF? I am getting conflicting answers within my organization, so I thought I'd throw it out there.
Thanks,
Jeff
Thanks,
Jeff





RE: Controlling Positional Tolerance of a Slot Axis
RE: Controlling Positional Tolerance of a Slot Axis
Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP1.1 / PDMWorks 05
ctopher's home site
RE: Controlling Positional Tolerance of a Slot Axis
Jeff
RE: Controlling Positional Tolerance of a Slot Axis
RE: Controlling Positional Tolerance of a Slot Axis
Anyway, I agree with ewh.
Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP1.1 / PDMWorks 05
ctopher's home site
RE: Controlling Positional Tolerance of a Slot Axis
Jeff
RE: Controlling Positional Tolerance of a Slot Axis
The GD&T positional tolerance is not just for round things and holes. Check out page 92 in ASME Y154.5M-1994, where they apply it to a pitch circle of rectangular slots.
I have only one objection. The whole point of a slot is that you only need to be accurate in one direction. The positional tolerance controls two.
JHG
RE: Controlling Positional Tolerance of a Slot Axis
"Wildfires are dangerous, hard to control, and economically catastrophic."
"Fixed in the next release" should replace "Product First" as the PTC slogan.
Ben Loosli
CAD/CAM System Analyst
Ingersoll-Rand