Stereolithography (SLA) - Revision history

Mjimenez47 at 16:22, 23 July 2025

2025-07-23T16:22:20Z

← Older revision		Revision as of 12:22, 23 July 2025
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	{\|class="infobox"		{\|class="infobox"
	!style="font-size:135%;text-align:center;" \| Prusa SL1 Resin Printer and CW1 Curing & Waching Machine [https://sites.gatech.edu/mse-mill/sop/resin-printer/ [SOP<nowiki>]</nowiki>]		!style="font-size:135%;text-align:center;" \| Prusa SL1 Resin Printer and CW1 Curing & Waching Machine [https://sites.gatech.edu/mse-mill/sop/resin-printer/ [SOP<nowiki>]</nowiki>]
	!FormLabs 3+ resin printer		!<big>FormLabs 3+ resin printer</big>
	\|-		\|-
	\|[[File:ResinPrinter-052621.png\|center\|300px]]		\|[[File:ResinPrinter-052621.png\|center\|300px]]
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	=== Material Versatility ===		=== Material Versatility ===
	SLA resins have the benefit of a wide range of formulation configurations: materials can be soft or hard, heavily filled with secondary materials like glass and ceramic, or imbued with mechanical properties like high heat deflection temperature or impact resistance. Material range from industry-specific, like dentures, to those that closely match final materials for prototyping, formulated to withstand extensive testing and perform under stress. In some cases, its this combination of versatility and functionality that leads to companies to initially bring resin 3D printing in-house. After finding one application solved by a specific functional material, it’s usually not long before more possibilities are uncovered, and the printer becomes a tool for leveraging the diverse capabilities of various materials.		SLA resins have the benefit of a wide range of formulation configurations: materials can be soft or hard, heavily filled with secondary materials like glass and ceramic, or imbued with mechanical properties like high heat deflection temperature or impact resistance. Material range from industry-specific, like dentures, to those that closely match final materials for prototyping, formulated to withstand extensive testing and perform under stress. In some cases, its this combination of versatility and functionality that leads to companies to initially bring resin 3D printing in-house. After finding one application solved by a specific functional material, it’s usually not long before more possibilities are uncovered, and the printer becomes a tool for leveraging the diverse capabilities of various materials.
	[[~~index~~.php?title=Category:Equipment\|proc]]		[[Index.php?title=Category:Equipment\|proc]]

	== References ==		== References ==
	<references />		<references />

Mjimenez47 at 16:13, 23 July 2025

2025-07-23T16:13:05Z

← Older revision		Revision as of 12:13, 23 July 2025
Line 1:		Line 1:
	{\|class="infobox"		{\|class="infobox"
	!style="font-size:135%;text-align:center;" \| Prusa SL1 Resin Printer and CW1 Curing & Waching Machine [https://sites.gatech.edu/mse-mill/sop/resin-printer/ [SOP<nowiki>]</nowiki>]		!style="font-size:135%;text-align:center;" \| Prusa SL1 Resin Printer and CW1 Curing & Waching Machine [https://sites.gatech.edu/mse-mill/sop/resin-printer/ [SOP<nowiki>]</nowiki>]
			!FormLabs 3+ resin printer
	\|-		\|-
	\|[[File:ResinPrinter-052621.png\|center\|300px]]		\|[[File:ResinPrinter-052621.png\|center\|300px]]
			\|
	\|-		\|-
	\|'''Resin Types''': Prusa Tough (Orange, Black)		\|'''Resin Types''': Prusa Tough (Orange, Black)
			\|'''Resin Types:''' Rigid 4000, castable wax, clear,
	\|}		\|}
	== Introduction ==		== Introduction ==
Line 29:		Line 32:
	=== Material Versatility ===		=== Material Versatility ===
	SLA resins have the benefit of a wide range of formulation configurations: materials can be soft or hard, heavily filled with secondary materials like glass and ceramic, or imbued with mechanical properties like high heat deflection temperature or impact resistance. Material range from industry-specific, like dentures, to those that closely match final materials for prototyping, formulated to withstand extensive testing and perform under stress. In some cases, its this combination of versatility and functionality that leads to companies to initially bring resin 3D printing in-house. After finding one application solved by a specific functional material, it’s usually not long before more possibilities are uncovered, and the printer becomes a tool for leveraging the diverse capabilities of various materials.		SLA resins have the benefit of a wide range of formulation configurations: materials can be soft or hard, heavily filled with secondary materials like glass and ceramic, or imbued with mechanical properties like high heat deflection temperature or impact resistance. Material range from industry-specific, like dentures, to those that closely match final materials for prototyping, formulated to withstand extensive testing and perform under stress. In some cases, its this combination of versatility and functionality that leads to companies to initially bring resin 3D printing in-house. After finding one application solved by a specific functional material, it’s usually not long before more possibilities are uncovered, and the printer becomes a tool for leveraging the diverse capabilities of various materials.
	[[Category:Equipment\|proc]]		[[index.php?title=Category:Equipment\|proc]]

	== References ==		== References ==
	<references />		<references />

Rzhou95 at 03:11, 6 October 2021

2021-10-06T03:11:26Z

← Older revision		Revision as of 23:11, 5 October 2021
Line 1:		Line 1:
	{\|class="infobox"		{\|class="infobox"
	!style="font-size:135%;text-align:center;" \| Prusa SL1 Resin Printer and CW1 Curing & Waching Machine		!style="font-size:135%;text-align:center;" \| Prusa SL1 Resin Printer and CW1 Curing & Waching Machine [https://sites.gatech.edu/mse-mill/sop/resin-printer/ [SOP<nowiki>]</nowiki>]
	\|-		\|-
	\|[[File:ResinPrinter-052621.png\|center\|300px]]		\|[[File:ResinPrinter-052621.png\|center\|300px]]

Rzhou95: Rzhou95 moved page Resin Printer to Stereolithography (SLA) without leaving a redirect

2021-07-13T15:03:44Z

Rzhou95 moved page Resin Printer to Stereolithography (SLA) without leaving a redirect

← Older revision	Revision as of 11:03, 13 July 2021
(No difference)

Amarin32 at 16:14, 2 July 2021

2021-07-02T16:14:04Z

← Older revision		Revision as of 12:14, 2 July 2021
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	== Why Choose SLA 3D Printing? ==		== Why Choose SLA 3D Printing? ==
			[[File:SLAvSFDM.PNG\|thumb\|While FDM 3D printed parts tend to have visible layer lines and might show inaccuracies around complex features, parts printed on SLA machines have sharp edges, a smooth surface finish, and minimal visible layer lines.]]
	=== Isotropy ===		=== Isotropy ===
	[[File:SLAvSFDM.PNG\|thumb\|While FDM 3D printed parts tend to have visible layer lines and might show inaccuracies around complex features, parts printed on SLA machines have sharp edges, a smooth surface finish, and minimal visible layer lines.]]
	Because 3D printing creates parts one layer at a time, completed prints may have variations in strength based on orientation of the part relative to the printing process, with different properties in X, Y, and Z axes. Extrusion-based 3D printing processes like fused deposition modeling (FDM) are known for being anisotropic due to layer-to-layer differences created by the print process. This anisotropy limits the usefulness of FDM for certain applications, or requires more adjustments on the part geometry side to compensate for it. In contrast, SLA resin 3D printers create highly isotropic parts. Achieving part isotropy is based on a number of factors that can be tightly controlled by integrating material chemistry with the print process. During printing, resin components form covalent bonds, but layer to layer, the part remains in a semi-reacted “green state.” While in the green state, the resin retains polymerizable groups that can form bonds across layers, imparting isotropy and watertightness to the part upon final cure. On the molecular level, there is no difference between X, Y, or Z planes. This results in parts with predictable mechanical performance critical for applications like jigs and fixtures, end-use parts, and functional prototyping.		Because 3D printing creates parts one layer at a time, completed prints may have variations in strength based on orientation of the part relative to the printing process, with different properties in X, Y, and Z axes. Extrusion-based 3D printing processes like fused deposition modeling (FDM) are known for being anisotropic due to layer-to-layer differences created by the print process. This anisotropy limits the usefulness of FDM for certain applications, or requires more adjustments on the part geometry side to compensate for it. In contrast, SLA resin 3D printers create highly isotropic parts. Achieving part isotropy is based on a number of factors that can be tightly controlled by integrating material chemistry with the print process. During printing, resin components form covalent bonds, but layer to layer, the part remains in a semi-reacted “green state.” While in the green state, the resin retains polymerizable groups that can form bonds across layers, imparting isotropy and watertightness to the part upon final cure. On the molecular level, there is no difference between X, Y, or Z planes. This results in parts with predictable mechanical performance critical for applications like jigs and fixtures, end-use parts, and functional prototyping.

Amarin32 at 16:13, 2 July 2021

2021-07-02T16:13:43Z

← Older revision		Revision as of 12:13, 2 July 2021
Line 10:		Line 10:
	Stereolithography (SLA) belongs to a family of additive manufacturing technologies known as vat photopolymerization, commonly known as resin 3D printing<ref Name="Formlabs"> Formlabs. (n.d.). The Ultimate Guide to Stereolithography (SLA) 3D Printing. https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/. </ref>. These machines are all built around the same principle, using a light source—a laser or projector—to cure liquid resin into hardened plastic. The main physical differentiation lies in the arrangement of the core components, such as the light source, the build platform, and the resin tank. SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries. SLA parts have the highest resolution and accuracy, the sharpest details, and the smoothest surface finishes of all 3D printing technologies, but the main benefit of the stereolithography lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match those of standard, engineering, and industrial thermoplastics.		Stereolithography (SLA) belongs to a family of additive manufacturing technologies known as vat photopolymerization, commonly known as resin 3D printing<ref Name="Formlabs"> Formlabs. (n.d.). The Ultimate Guide to Stereolithography (SLA) 3D Printing. https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/. </ref>. These machines are all built around the same principle, using a light source—a laser or projector—to cure liquid resin into hardened plastic. The main physical differentiation lies in the arrangement of the core components, such as the light source, the build platform, and the resin tank. SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries. SLA parts have the highest resolution and accuracy, the sharpest details, and the smoothest surface finishes of all 3D printing technologies, but the main benefit of the stereolithography lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match those of standard, engineering, and industrial thermoplastics.
	== Principle ==		== Principle ==
	[[File:SLAPrinciple.PNG\|thumb\|Diagram showing how SLA printing builds layers]]		[[File:SLAPrinciple.PNG\|thumb\|left\|500px\|Diagram showing how SLA printing builds layers]]
	When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.		When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.

Amarin32 at 16:13, 2 July 2021

2021-07-02T16:13:24Z

← Older revision		Revision as of 12:13, 2 July 2021
Line 7:		Line 7:
	\|}		\|}
	== Introduction ==		== Introduction ==
	Stereolithography (SLA) belongs to a family of additive manufacturing technologies known as vat photopolymerization, commonly known as resin 3D printing<ref Name="Formlabs"> Formlabs. (n.d.). The Ultimate Guide to Stereolithography (SLA) 3D Printing. https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/. </ref>. These machines are all built around the same principle, using a light source—a laser or projector—to cure liquid resin into hardened plastic. The main physical differentiation lies in the arrangement of the core components, such as the light source, the build platform, and the resin tank. SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries. SLA parts have the highest resolution and accuracy, the sharpest details, and the smoothest surface finishes of all 3D printing technologies, but the main benefit of the stereolithography lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match those of standard, engineering, and industrial thermoplastics.~~[[File:SLADiagram.PNG\|thumb\|left\|Diagram of the key parts of a typical desktop SLA printer]]~~		[[File:SLADiagram.PNG\|thumb\|left\|Diagram of the key parts of a typical desktop SLA printer]]
			Stereolithography (SLA) belongs to a family of additive manufacturing technologies known as vat photopolymerization, commonly known as resin 3D printing<ref Name="Formlabs"> Formlabs. (n.d.). The Ultimate Guide to Stereolithography (SLA) 3D Printing. https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/. </ref>. These machines are all built around the same principle, using a light source—a laser or projector—to cure liquid resin into hardened plastic. The main physical differentiation lies in the arrangement of the core components, such as the light source, the build platform, and the resin tank. SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries. SLA parts have the highest resolution and accuracy, the sharpest details, and the smoothest surface finishes of all 3D printing technologies, but the main benefit of the stereolithography lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match those of standard, engineering, and industrial thermoplastics.
	== Principle ==		== Principle ==
			[[File:SLAPrinciple.PNG\|thumb\|Diagram showing how SLA printing builds layers]]
	When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.		When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.

Line 14:		Line 16:

	=== Isotropy ===		=== Isotropy ===
			[[File:SLAvSFDM.PNG\|thumb\|While FDM 3D printed parts tend to have visible layer lines and might show inaccuracies around complex features, parts printed on SLA machines have sharp edges, a smooth surface finish, and minimal visible layer lines.]]
	Because 3D printing creates parts one layer at a time, completed prints may have variations in strength based on orientation of the part relative to the printing process, with different properties in X, Y, and Z axes. Extrusion-based 3D printing processes like fused deposition modeling (FDM) are known for being anisotropic due to layer-to-layer differences created by the print process. This anisotropy limits the usefulness of FDM for certain applications, or requires more adjustments on the part geometry side to compensate for it. In contrast, SLA resin 3D printers create highly isotropic parts. Achieving part isotropy is based on a number of factors that can be tightly controlled by integrating material chemistry with the print process. During printing, resin components form covalent bonds, but layer to layer, the part remains in a semi-reacted “green state.” While in the green state, the resin retains polymerizable groups that can form bonds across layers, imparting isotropy and watertightness to the part upon final cure. On the molecular level, there is no difference between X, Y, or Z planes. This results in parts with predictable mechanical performance critical for applications like jigs and fixtures, end-use parts, and functional prototyping.		Because 3D printing creates parts one layer at a time, completed prints may have variations in strength based on orientation of the part relative to the printing process, with different properties in X, Y, and Z axes. Extrusion-based 3D printing processes like fused deposition modeling (FDM) are known for being anisotropic due to layer-to-layer differences created by the print process. This anisotropy limits the usefulness of FDM for certain applications, or requires more adjustments on the part geometry side to compensate for it. In contrast, SLA resin 3D printers create highly isotropic parts. Achieving part isotropy is based on a number of factors that can be tightly controlled by integrating material chemistry with the print process. During printing, resin components form covalent bonds, but layer to layer, the part remains in a semi-reacted “green state.” While in the green state, the resin retains polymerizable groups that can form bonds across layers, imparting isotropy and watertightness to the part upon final cure. On the molecular level, there is no difference between X, Y, or Z planes. This results in parts with predictable mechanical performance critical for applications like jigs and fixtures, end-use parts, and functional prototyping.

Amarin32 at 16:11, 2 July 2021

2021-07-02T16:11:30Z

← Older revision		Revision as of 12:11, 2 July 2021
Line 7:		Line 7:
	\|}		\|}
	== Introduction ==		== Introduction ==
	Stereolithography (SLA) belongs to a family of additive manufacturing technologies known as vat photopolymerization, commonly known as resin 3D printing<ref Name="Formlabs"> Formlabs. (n.d.). The Ultimate Guide to Stereolithography (SLA) 3D Printing. https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/. </ref>. These machines are all built around the same principle, using a light source—a laser or projector—to cure liquid resin into hardened plastic. The main physical differentiation lies in the arrangement of the core components, such as the light source, the build platform, and the resin tank. SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries. SLA parts have the highest resolution and accuracy, the sharpest details, and the smoothest surface finishes of all 3D printing technologies, but the main benefit of the stereolithography lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match those of standard, engineering, and industrial thermoplastics.		Stereolithography (SLA) belongs to a family of additive manufacturing technologies known as vat photopolymerization, commonly known as resin 3D printing<ref Name="Formlabs"> Formlabs. (n.d.). The Ultimate Guide to Stereolithography (SLA) 3D Printing. https://formlabs.com/blog/ultimate-guide-to-stereolithography-sla-3d-printing/. </ref>. These machines are all built around the same principle, using a light source—a laser or projector—to cure liquid resin into hardened plastic. The main physical differentiation lies in the arrangement of the core components, such as the light source, the build platform, and the resin tank. SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries. SLA parts have the highest resolution and accuracy, the sharpest details, and the smoothest surface finishes of all 3D printing technologies, but the main benefit of the stereolithography lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match those of standard, engineering, and industrial thermoplastics.[[File:SLADiagram.PNG\|thumb\|left\|Diagram of the key parts of a typical desktop SLA printer]]

	== Principle ==		== Principle ==
	~~[[File:SLADiagram.PNG\|thumb\|left\|Diagram of the key parts of a typical desktop SLA printer]]~~
	When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.		When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.

Amarin32 at 15:52, 2 July 2021

2021-07-02T15:52:39Z

← Older revision		Revision as of 11:52, 2 July 2021
Line 10:		Line 10:

	== Principle ==		== Principle ==
	[[File:SLADiagram.PNG\|thumb\|Diagram of the key parts of a typical desktop SLA printer]]		[[File:SLADiagram.PNG\|thumb\|left\|Diagram of the key parts of a typical desktop SLA printer]]
	When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.		When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.

Amarin32 at 15:52, 2 July 2021

2021-07-02T15:52:26Z

← Older revision		Revision as of 11:52, 2 July 2021
Line 10:		Line 10:

	== Principle ==		== Principle ==
			[[File:SLADiagram.PNG\|thumb\|Diagram of the key parts of a typical desktop SLA printer]]
	When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.		When the process starts, an ultraviolet laser “draws” the first layer of the print into the photosensitive resin<ref Name="All3DP"> All3DP. (2020, September 16). Stereolithography / SLA 3D Printing – Simply Explained. https://all3dp.com/2/stereolithography-3d-printing-simply-explained/. </ref>. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers work upside-down. That is, the laser is pointed up to the build platform, which starts low and is incrementally raised. After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused. After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.