From the course: Additive Manufacturing: Metal 3D Printing
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Resolution, shrinkage, and isotropy
From the course: Additive Manufacturing: Metal 3D Printing
Resolution, shrinkage, and isotropy
- [Female Narrator] Discussing resolution of a 3D printer is always a little complicated. Unlike dots per inch, or other 2D printing metrics, 3D printing resolution has to take into account several factors. For metal filament based printing in particular, a discussion of resolution needs to consider the repeatability of the process, the positional accuracy of the nozzle placement, and the nozzle size. Repeatability and nozzle placement precision will determine how accurately a design will be printed compared to its CAD design. Manufacturers might give the printers tolerances as a percentage of the part's dimensions. This is because for most prints, the uncertainty in the shrinkage during the centering process will be the dominate factor in any error in the final dimensions. The shrinkage needs to be allowed for, either by the printer's software or the designer, depending on how much of the process is automated. The…
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