Two-dimensional screening
Position deviation
Inputs
Measured center offset in the declared datum frame.
Measured center offset in the declared datum frame.
Diametrical positional tolerance for this simplified screen.
Results
Diametrical position deviation
0.0072111
Radial center offset
0.0036056
Remaining tolerance margin
0.0007889
⌀ deviation = 2√(Δx² + Δy²)
A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.
Nearby: ISO 286 fits · Tolerance stack · MMC bonus & virtual condition · Process capability Cp/Cpk
Method
Formula, when it applies, and when it does not
Calculate diametrical position deviation from X/Y offsets and compare it with one positional tolerance.
⌀ deviation = 2√(Δx² + Δy²)
When
- Single feature center
- Two-dimensional measured offset
- Declared datum frame already established
Don’t
- The calculated two-dimensional deviation is within the entered tolerance. Confirm datum establishment, feature size, orientation, depth, and inspection method separately.
ISO 1101 — geometrical tolerancing