Table levelness tolerance for pro events

[nataddrho]

Does anybody have any information on the allowed tolerance for table levelness, if there even is a standard?

Thanks in advance.

 

[23DenaliBDE]

My favorite argument in Differential Geometry was arguing that the L2 norm is closer than the Arc Length norm when a piece of flat paper is folded. The demonstration is to fold paper in half and poke a hold. Then separate the fold to have a gap.

The math of the situation is arc length can be shaped differently to change the L2 norm distance.

Flat versus level. Space is curved, what does a flat curve look like? QED.

Is the surface flat from the human perspective or flat on the astronomical scale.

BIRPA support creates research like this.

Movie night is happening.

All you had to say was, "I like to hear myself talk, regardless of it having anything to do with the topic at hand."

 

[DeeDeeCues]

As a spec for manufacturers I think it is OK. There needs to be an additional spec for level for when the table is installed. If the table can't be made flat it can't be made level. And the manufacturer has no control over the installer, usually. I agree that a levelness spec needs to be added.

100%, well said.

Now we can start to interpolate. Level can mean that a best-fit plane be defined, but that would require mapping the surface.

Based on the flatness specification, we can't really expect level to be better than the same tolerances.

Personally, I like your roll-off definition. A stimpmeter and path deviation should be the basis for level.