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The following 3D printing and additive manufacturing technologies referenced in this guideline include Fused Deposition Modeling (FDM), Selective Laser Sintering (SLS), Multi Jet Fusion (MJF), Stereolithography (SLA) and PolyJet (PJ). See main design guidelines details below. Have a specific question? Speak directly with a Fathom expert for any project questions.
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 |
WALL THICKNESS  |
HOLE DIAMETER  |
CLEARANCE FOR 3D PRINTED ASSEMBLIES  |
ESCAPE HOLES  |
MINIMUM DETAIL  |
PIN DIAMETER  |
Z ACCURACY  |
XY ACCURACY |
STANDARD LAYER THICKNESS1  |
|---|---|---|---|---|---|---|---|---|---|
| FDM | 1 mm | 1.6 mm | 0.5 mm | – | 0.5 mm for 0.127 mm Slices |
2 mm | XY Accuracy Plus Additional Tolerance of -0.000/+ Slice Height |
+/- .127 mm (.005 in) or +/- .002 mm/mm (.002 in/in) (Whichever is Greater) |
.25 mm (.010) |
| SLS | 0.7 mm | 1 mm | 0.5 mm | 5 mm | 0.7 mm | 1 mm | +/- 0.3 mm or 0.3% (Whichever is Greater)2 |
+/- .3 mm (.012) or -0.3% (Whichever is Greater)2 |
.12 mm (.005) |
| MJF | 0.7 mm | 1 mm | 0.5 mm | 5 mm | 0.4 mm | 1 mm | +/- 0.5 mm or 0.5% (Whichever is Greater)2 |
+/- .3 mm (.012) on XY or =/- 0.3% (Whichever is Greater)2 |
.08 mm (.003) |
| SLA | 1 mm | 0.5 mm | 0.5 mm | 5 mm | 0.5 mm | 1 mm | +/- 0.2 mm (.008) or .2% (Whichever is Greater) |
+/- .2 mm (.008) or 0.2% (Whichever is Greater) |
.1 mm (.004) |
| PJ | 1 mm | 0.5 mm | 0.4 mm | – | 0.4 mm | 1 mm | +/- 0.2 mm (.008) or .002 mm/mm (Whichever is Greater) |
+/- .2 mm (.008) or .002 mm/mm (Whichever is Greater) |
.03 mm (001) |
*All values are dependent on overall geometry, part function and build orientation.
1 Fathom’s standard layer thickness per technology.
2 Values Can Increase For Solid Parts With Wall Solid Parts With Wall Thickness Over 5mm
Minimum Features for PolyJet
Same-Day & Next-Day Services
Matte Vs. Glossy for PolyJet
Can’t find what you are looking for? Fathom’s engineering team is always adding to this chart, so check back often, but if you can’t find the information you need at this moment, don’t hesitate to reach out directly. Talk with one of our in-house experts today.
