Engineering lab
Practical Tools for Better Mechanical Decisions.
Use interactive mechanical engineering calculators and a printable review resource to expose assumptions, test first-order feasibility, and prepare a stronger technical brief.
Tolerance Stack Calculator
Build a signed linear stack, compare worst-case and RSS limits, convert units, share a state, and export a report.
Open calculatorTOOL 02Bolt Preload + Torque Estimator
Screen installation torque, axial preload, tensile stress, and yield utilization with the T = KFd relationship.
Open calculatorTOOL 03Beam Deflection + Stress Calculator
Compare elastic stress and deflection for three common rectangular-beam load cases with explicit assumptions.
Open calculatorTOOL 04Four-Bar Linkage Explorer
Test Grashof classification, solve open or crossed position closure, and inspect live output geometry.
Open calculatorTOOL 05Thermal Fit + Clearance Calculator
Estimate bore and shaft growth at independent temperatures, then track clearance or interference through the thermal state.
Open calculatorTOOL 06Shaft Torsion + Power Calculator
Screen solid or hollow shafts for transmitted power, torque, shear stress, angle of twist, and yield margin.
Open calculatorTOOL 07Compression Spring Calculator
Estimate spring rate, force, Wahl-corrected shear stress, and coil-bind margin for a round-wire compression spring.
Open calculatorTOOL 08Pin + Clevis Joint Calculator
Screen a pin joint for average pin shear, lug bearing, clevis bearing, and the governing factor of safety.
Open calculatorRESOURCE 01Mechanical Design Review Checklist
A printable gate review covering requirements, interfaces, loads, mechanisms, tolerances, production, validation, and release evidence.
Open checklistDirect senior involvement
Turn the product decision into a clear next step.
Share a non-confidential summary, the current stage, and the outcome the team needs.
Discuss Your Project