Weird question about axial runout.

[[Da...]]

I've been asked to check axial runout of the face of a gear. The print specifies a radius at which the runout is to be measured. I have no model. I made a point at the radius on one tooth , then patterned all of the teeth. I recalled feature points into a plane, set the length and width of the plane to match the radius. Here is the question, does the axial runout report the runout of the points themselves, or does calypso give me the runout at the corners of the plane feature? ( projected)

[[Cl...]]

If I'm correctly understanding the question, you could create a second plane, and instead of setting the length and width to match the radius, set it to the length/width to match the max X&Y values (or what ever the work-plane is) of the points themselves and see what (if any) difference there is?

[[Me...]]

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By default, it's evaluating the measured points. The result will be the same as if you used the perpendicularity characteristic.

[[Da...]]

Having never worked with gears, I am wondering what the difference is between radial and axial runout. It seems to me that checking 1 point on the teeth is more of a radial check.

[[Cl...]]

Axial runout would be like putting an indicator on side-wall of the wheel and spinning the axel.
Radial runout would be like putting an indicator on the tire tread and spinning the axel. That's
the simplest analogy I can think of.

[[Da...]]

Thank you, Clarke. So axial is like a wobble, and radial like a bounce.

[[Cl...]]

Yep.

[[SH...]]

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Radial and axial runout is the vocabulary used in calypso, this not ASME or ISO vocabulary .