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Precision Measuring

*This is a WIP.

Need a collection of tools and skill to be able to replicate parts for creating precision models to then use for manufacturing on demand and such.

There is a focus on engine building, suspension, drive lines and more.

I’m going to focus on metric measurements.


“Shop” vs “Inspection” quality.

  • Precision Scales: Ranging from a tenth of a gram to 2 kg, are essential for accurately weighing engine parts and materials, ensuring balance and precise material usage in engine builds and fabrications.
  • Vernier or Digital Calipers – Useful for external, internal, and depth measurements.
  • Plastigauge – Used to measure the clearance between bearings and shafts. This is particularly useful for checking crankshaft and connecting rod bearings. Often frowned upon by pro builders.
  • Micrometers – Provides precise small measurements, crucial for engine building.
  • Feelers – Thin strips used to measure gap widths or clearances.
  • Bore Gauges – Essential for measuring the inside of cylinder bores.
  • Telescoping Gauge – Used to measure the interior diameter of cylinders and other openings.
  • Gauge Pins – Useful for checking hole sizes and distances.
  • Dial Indicator – Helps in measuring small distances and angles to a high degree of accuracy.
  • Deck Plate: Simulates cylinder head pressure, enabling precise measurement of piston-to-deck clearance for accurate engine assembly and compression ratio calculations.
  • Gauge Blocks – For calibrating and setting micrometers and other gauges.
  • Surface Plate – Provides a true flat surface for inspection and layout.
  • Straight Edges – Used for checking the flatness of surfaces.
  • Torque Wrench – Essential for applying specific torque to bolts and nuts, crucial in engine assembly to ensure everything is tightened to the manufacturer’s specifications.
  • Angle Gauge – Often used in conjunction with a torque wrench to achieve precise angular torques, particularly important for head bolts.

Machine Setup/ Calibration

  • Machine Level: For setup of machines
  • Calibration Bar: Aligning machines


Environmental Concerns

I’m not sure this is critical for our needs other than it makes sense to do important measurements and a machining in a fairly stable temperature.