FDM holes print about 0.25 mm undersized in the one test that discloses its method
CNC Kitchen measured FDM holes 0.25 mm undersized with a disclosed method. SLS, MJF and SLA numbers in circulation are mostly vendor design-guide claims.
Materials
What to print it in: datasheet figures with the test standard behind them, how the processes differ, and what the studies measured.
Datasheet figures: 8 PETG products side by side →
Guides
4.2 mm in CAD keeps 90% of an M3 insert's pull-out strength, CNC Kitchen finds
CNC Kitchen pulled nearly 50 M3 inserts out of PLA across a 3.6-4.6 mm hole sweep. 4.2 mm in CAD holds about 90% of the roughly 1,400 N peak.
PETG from eight brands, compared datasheet by datasheet
Prusament, Polymaker, Bambu Lab, eSun, Overture, Sunlu, Extrudr and Fiberlogy PETG side by side: tensile and heat figures, print settings and prices, with the test conditions that decide which numbers can share a column.
Latest
- Materials research
Researchers model cement paste flow at the particle scale to explain 3D printability
Northwestern and University of Alabama researchers built a multiscale model, from atomic-scale cement surfaces to particle beads, to explain why fresh cement paste thins under shear instead of breaking apart.
- Materials data
How to read a filament datasheet before you trust the MPa figure
Bambu Lab says 51 MPa, eSun says 34.77 MPa, and both are printed PETG test bars. What to check on a datasheet before comparing two numbers: the standard, the bar, the print direction, the HDT load and the specimen conditions.
- Materials research
SLS vs MJF: what the published research actually shows
A sourced look at how selective laser sintering and HP Multi Jet Fusion actually compare on density, porosity, packing-density warping, mechanical properties, powder reuse, and biocompatibility.
- Technology basics
FDM vs SLA vs SLS vs MJF: a plain-language comparison
The four most common 3D printing technologies offered by online print services, compared on cost, strength, detail, and what each is actually good for.
- Materials data
FDM materials compared: PLA, PETG, ABS, ASA and PA12 by the numbers
Tensile strength, elongation, heat deflection temperature, and print settings for five common FDM materials, pulled directly from manufacturer datasheets.