ENGINEERING STUDY / FIXTUREJS—02
Functional Drift-Gauge Screening Study
A functional gauge study establishing when a local drift screen is valid under a specific material-condition boundary.
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WorkholdingcalculatorDesign study
Two-Pin Fixture Tolerance and Fit Calculator
A browser tool for two-pin fixture/part fit analysis with position and size tolerances and deterministic scenario checks.
Explore the calculation model ↗
Change the inputs and explore the engineering results.
MY FOCUSDeveloped the geometric fit model, scenario evaluation, and Monte Carlo-style exploration interface.
ENGINEERING VALUE
Demonstrates practical tolerance analysis applied to fixture location strategy.
PROJECT SCOPE
Fixture fit calculator with deterministic and sampled scenarios
Explore the project checks ↗ENGINEERING STUDY / FIXTUREJS—02
Engineering concept illustration.
01 / THE PROBLEM
The engineering challenge.
Two-pin location schemes can bind or misfit when pin, base-hole, part-hole, and positional tolerances stack unfavorably.
02 / CONSTRAINTS
What the solution must consider.
- Simulation results depend on the statistical model and cannot replace drawing requirements or physical inspection.
03 / ENGINEERING APPROACH
Reasoning before geometry.
01
Engineering method
Evaluate both explicit worst-case configurations and sampled tolerance combinations, while keeping geometry and tolerance sources separate.
02
Workflow features
Pin/base/part-hole inputs; Pattern and positional tolerances; Deterministic boundary scenarios; Fit-rate simulation; Result export.
04 / DESIGN & IMPLEMENTATION
Connecting intent to execution.
The tool evaluates size and position tolerance combinations through worst-case scenarios and sampled fit-rate exploration.
- Pin/base/part-hole inputs
- Pattern and positional tolerances
- Deterministic boundary scenarios
- Fit-rate simulation
- Result export
05 / VALIDATION
The checks behind the design.
Design study
Fit-rate results depend on the statistical model and selected tolerance inputs. Compare the stack with drawing requirements and a reference calculation before selecting a locating scheme.
06 / OUTCOME
The value of the work.
Demonstrates practical tolerance analysis applied to fixture location strategy.
THE ENGINEERING PRINCIPLE
Positive diameter clearance does not guarantee two-pin assembly.
Each hole may clear its pin at the size limits while the pair still fails because of pattern error. Size, center distance, position tolerance and datum references need to be evaluated together.
A question for a technical conversation
When would a round-and-diamond locating scheme avoid unnecessary overconstraint?
LET’S BUILD SOMETHING THAT WORKS
Good design belongs
on the shop floor.
Considering a role in mechanical design, manufacturing methods,
fixture design, or estimation? Let’s connect.