Tolerances

The table below shows the standard tolerances which we base our prices on. These are suitable for the vast majority of composite tooling applications. If your project requires molds manufactured to tighter tolerances than standard please let us know when placing your order and we will be happy to accommodate.

CNC milling standard

Type Tolerances Measure Datum Inspection Criteria
Surface Profile ±0.2mm Best fit to CAD data or specified datum Points evenly distributed over surface with a minimum of 100 inspection points per m² of critical surface area.
Hole Location ±0.1mm Best fit to CAD data or specified datum 100% inspection
Hole center locations to be detailed on report discrete from other measurements
Hole Diameter F8 N/A 100% inspection
Hole diameters to be detailed on report as discrete geometric features

CNC milling coarse

Type Tolerances Measure Datum Inspection Criteria
Surface Profile ±0.4mm Best fit to CAD data or specified datum Points evenly distributed over surface with a minimum of 100 inspection points per m² of critical surface area.
Hole Location ±0.2mm Best fit to CAD data or specified datum 100% inspection
Hole center locations to be detailed on report discrete from other measurements
Hole Diameter F8 N/A 100% inspection
Hole diameters to be detailed on report as discrete geometric features

3D printing

Type Tolerance Datum Inspection Criteria
Surface Profile ±0.5mm Best fit to CAD data or specified datum Points evenly distributed over surface with a minimum of 100 inspection points per m² of critical surface area.
Hole Location ±0.1mm Best fit to CAD data, UOS. 100% inspection
Hole center locations to be detailed on report discrete from other measurements
Hole Diameter F8 N/A 100% inspection
Hole diameters to be detailed on report as discrete geometric features