Manufacturing Tolerances

FDM

Nomenclature

FDM X.XXX” where X.XXX” = slice height

Slice height options

For: FDM 0.005”, FDM 0.007”, FDM 0.010”, FDM 0.013”, and FDM 0.020”

Tolerances

XY Tolerance = ±0.008” or ±0.002”/in whichever is greater

Z Tolerance = XY tolerance + slice height, ie FDM 0.005” has an additional Z tolerance of 0.005”

Tighter tolerances may be available on case-by-case basis via request.

Resolution

FDM minimum recommended wall thickness is 0.080” (0.120” for FDM 0.020” slice height).

FDM absolute minimum wall thickness is 4X slice height ie. Absolute minimum wall thickness fo FDM 0.007” is 0.028”.

Features thinner than recommended wall thickness may not build.

Thinner minimum geometry may be available on a case-by-case basis via request.

SLA

Slice height options

25 microns; 50 microns; 100 microns; 160 microns

SLA tolerances regardless of slice height are ±0.5% in XY and ±1% in Z with a lower limit of 0.008”.

Tighter tolerances may be available on a case-by-case basis via request.

Resolution

SLA minimum recommended wall thickness is 0.050”.

SLA absolute minimum wall thickness is 0.025”.

SLA minimum resolvable feature size is 0.010”.

SLS

SLS Slice height

110 microns

SLS Tolerance

SLS tolerance is ±0.3% with a lower limit of 0.012”.

SLS Resolution

SLS minimum recommended wall thickness is 0.060”.

SLS absolute minimum wall thickness is 0.030”.

Finish FAQ

Tolerances on parts requiring special finish (not Level 1, 2, or 3) will be ±0.01” plus the associated tolerance of the technology

SLA Finish = Level 1: Support are removed and touchpoints are sanded.

SLA Finish = Level 2: Supports are removed and touchpoints and surrounding surfaces are sanded so that touchpoint location is no longer visible.

SLA Finish = Level 3: Supports are removed and touchpoints and surrounding surfaces are sanded to completely smooth. Clear parts will be nearly optically transparent.

SLS Finish = Standard: Parts are media blasted to remove un-sintered powder.