3D printers

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Note that in both methodologies, problems can arise when a layer occupies part of the xy plane unoccupied by the layer underneath it. In the FDM case, material extruded into such areas is likely to fall to a lower z coordinate. In the case of vat polymerization, if the area is similarly isolated in the xy plane (i.e. disconnected from all elements below it or at the same layer), the solidified material is unlikely to rise along with the rest of its layer, settling instead to the bottom of the vat.

Other methodologies include powder bed fusion (SLS, SLM, EBM, MJF), material jetting (including DOD), binder jetting, and direct energy deposition (LENS, EBAM). Some of these get pretty esoteric. Some of them are practically welding. LENS spot-fuses titanium alloy powder using a multi-kilowatt laser in an argon ~~atmosphere~~ to build jet engine blades. It is not cheap even before one considers the logistics of ensuring a regular supply of bulk-tanked CGA-680 ~~argon~~ (and avoiding asphyxiation thereby).

Other methodologies include powder bed fusion (SLS, SLM, EBM, MJF), material jetting (including DOD), binder jetting, and direct energy deposition (LENS, EBAM). Some of these get pretty esoteric. Some of them are practically welding. LENS spot-fuses titanium alloy powder using a multi-kilowatt laser in an atmosphere of monatomic argon to build jet engine blades. It is not cheap even before one considers the logistics of ensuring a regular supply of bulk-tanked CGA-680 Ar (and avoiding asphyxiation thereby).

3D printers: Difference between revisions

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Revision as of 04:58, 10 October 2022 view source Dank (talk \| contribs) Bureaucrats, Administrators 11,325 edits Created page with "I got pretty into 3D printing in 2022. Here are some things I've learned. Be aware that the industry moves very quickly, and this information is likely to go out of data within a few years. ==Types of 3D printers== The printing techniques one is likely to see in personal use are almost all <i>material extrusion</i> (FDM) or <i>vat polymerization</i> (MSLA and DLP). There are numerous other methodologies (see this [https://all3dp.com/1/types-of-3d-printers-3d-printing-te..."		Revision as of 04:59, 10 October 2022 view source Dank (talk \| contribs) Bureaucrats, Administrators 11,325 edits No edit summary Newer edit →
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	Note that in both methodologies, problems can arise when a layer occupies part of the xy plane unoccupied by the layer underneath it. In the FDM case, material extruded into such areas is likely to fall to a lower z coordinate. In the case of vat polymerization, if the area is similarly isolated in the xy plane (i.e. disconnected from all elements below it or at the same layer), the solidified material is unlikely to rise along with the rest of its layer, settling instead to the bottom of the vat.		Note that in both methodologies, problems can arise when a layer occupies part of the xy plane unoccupied by the layer underneath it. In the FDM case, material extruded into such areas is likely to fall to a lower z coordinate. In the case of vat polymerization, if the area is similarly isolated in the xy plane (i.e. disconnected from all elements below it or at the same layer), the solidified material is unlikely to rise along with the rest of its layer, settling instead to the bottom of the vat.

	Other methodologies include powder bed fusion (SLS, SLM, EBM, MJF), material jetting (including DOD), binder jetting, and direct energy deposition (LENS, EBAM). Some of these get pretty esoteric. Some of them are practically welding. LENS spot-fuses titanium alloy powder using a multi-kilowatt laser in an argon ~~atmosphere~~ to build jet engine blades. It is not cheap even before one considers the logistics of ensuring a regular supply of bulk-tanked CGA-680 ~~argon~~ (and avoiding asphyxiation thereby).		Other methodologies include powder bed fusion (SLS, SLM, EBM, MJF), material jetting (including DOD), binder jetting, and direct energy deposition (LENS, EBAM). Some of these get pretty esoteric. Some of them are practically welding. LENS spot-fuses titanium alloy powder using a multi-kilowatt laser in an atmosphere of monatomic argon to build jet engine blades. It is not cheap even before one considers the logistics of ensuring a regular supply of bulk-tanked CGA-680 Ar (and avoiding asphyxiation thereby).