Description
Return half the head diameter plus tool clearance for requiredAccessRadius.
A signed fit margin compares available space with an object and explicit allowances. Volume sufficiency, radial gaps, and diametral clearance are different conditions.
Return half the head diameter plus tool clearance for requiredAccessRadius.
When to use this tool
Use Screw Head Tool Access Radius when you need one transparent product fit or travel-margin term.
How to use the tool and how it works
- Enter headDiameter, toolClearance. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read requiredAccessRadius. Use the output convention below.
Require nonnegative headDiameter and toolClearance. Return half the head diameter plus tool clearance for requiredAccessRadius.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| headDiameter | Head Diameter | Required. Finite number; minimum 0. |
| toolClearance | Tool Clearance | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| requiredAccessRadius | Required Access Radius | Required. Finite number. |
{
"input": {
"headDiameter": 8,
"toolClearance": 3
},
"output": {
"requiredAccessRadius": 7
}
}Limitations and assumptions
- This is a radial allowance around a supplied head size, not a three-dimensional tool envelope, torque requirement, or proof of assembly access.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Check complete three-dimensional geometry, tolerances, materials, and operating conditions before judging actual fit or safety.
References
Similar or alternative tools
- Wheelchair Clear Width Measured Margin
Return their difference and an inclusive meetsSuppliedWidth flag.
- Chamfer Width Face Length
Multiply nonnegative equalLegChamferWidth by sqrt(2) for chamferFaceLength.