STL to STEP - Revision history

Marcin: /* Reverse Engineering STL to OpenSCAD */

2019-04-24T20:45:51Z

Reverse Engineering STL to OpenSCAD

← Older revision		Revision as of 20:45, 24 April 2019
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	Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can be rendered - and EDITED - in the FreeCAD OpenSCAD workbench - apparently as if it were a solid object - see [https://www.youtube.com/watch?v=G66zAjnZpcc].		Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can be rendered - and EDITED - in the FreeCAD OpenSCAD workbench - apparently as if it were a solid object - see [https://www.youtube.com/watch?v=G66zAjnZpcc].

	=Reverse Engineering STL to OpenSCAD=		=Reverse Engineering STL to OpenSCAD so it Can Be Edited in FreeCAD=
	*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]		*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]
			*Here is an STL to OpenSCAD converter on thingiverse, which converts STL format to OpenSCAD format. https://www.thingiverse.com/thing:62666 - but it doesn't appear to work.
	*Python program for doing so - [https://github.com/joshuaflanagan/stl2scad]		*Python program for doing so - [https://github.com/joshuaflanagan/stl2scad]
	:*Seems limit will be length of a file that FreeCAD can handle if done this way.		:*Seems limit will be length of a file that FreeCAD can handle if done this way.

Marcin: /* Problem Statement */

2019-04-24T20:45:21Z

Problem Statement

← Older revision		Revision as of 20:45, 24 April 2019
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	It appears that the best workflow for STL modification (derivatives of STL files when FreeCAD source is not available) is to use an STL editor such as [[OpenSCAD]] or [[BlocksCAD]] or [[OpenJSCAD]]. Modification occurs in the STL editor, and then the file is imported to FreeCAD. PITA, but that's all we have for now in the open source.		It appears that the best workflow for STL modification (derivatives of STL files when FreeCAD source is not available) is to use an STL editor such as [[OpenSCAD]] or [[BlocksCAD]] or [[OpenJSCAD]]. Modification occurs in the STL editor, and then the file is imported to FreeCAD. PITA, but that's all we have for now in the open source.

	~~Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can~~ be ~~rendered - and EDITED - in~~ the ~~FreeCAD OpenSCAD workbench. [https://www.youtube.com/watch?v=G66zAjnZpcc]~~.		'''A good open source STL to STEP converted would be very useful to the open source community.'''

	~~With this said - Here~~ is ~~an STL to OpenSCAD converter on thingiverse~~, ~~which converts STL format to~~ OpenSCAD ~~format.~~ https://www.~~thingiverse~~.com/~~thing:62666 - but it doesn't appear to work~~.		Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can be rendered - and EDITED - in the FreeCAD OpenSCAD workbench - apparently as if it were a solid object - see [https://www.youtube.com/watch?v=G66zAjnZpcc].

	=Reverse Engineering STL to OpenSCAD=		=Reverse Engineering STL to OpenSCAD=

Marcin: /* Reverse Engineering STL to OpenSCAD */

2019-04-24T20:41:04Z

Reverse Engineering STL to OpenSCAD

← Older revision		Revision as of 20:41, 24 April 2019
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	*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]		*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]
	*Python program for doing so - [https://github.com/joshuaflanagan/stl2scad]		*Python program for doing so - [https://github.com/joshuaflanagan/stl2scad]
			:*Seems limit will be length of a file that FreeCAD can handle if done this way.

	=Options=		=Options=

Marcin: /* Reverse Engineering STL to OpenSCAD */

2019-04-24T20:38:20Z

Reverse Engineering STL to OpenSCAD

← Older revision		Revision as of 20:38, 24 April 2019
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	=Reverse Engineering STL to OpenSCAD=		=Reverse Engineering STL to OpenSCAD=
	*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]		*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]
			*Python program for doing so - [https://github.com/joshuaflanagan/stl2scad]

	=Options=		=Options=

Marcin: /* Reverse Engineering STL to OpenSCAD */

2019-04-24T20:35:55Z

Reverse Engineering STL to OpenSCAD

← Older revision		Revision as of 20:35, 24 April 2019
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	=Reverse Engineering STL to OpenSCAD=		=Reverse Engineering STL to OpenSCAD=
	*Advanced workflow - [https://www.youtube.com/watch?v=qHa2c0L9zz4]		*Advanced workflow using Meshlab- [https://www.youtube.com/watch?v=qHa2c0L9zz4]

	=Options=		=Options=

Marcin: /* Problem Statement */

2019-04-24T20:34:41Z

Problem Statement

← Older revision		Revision as of 20:34, 24 April 2019
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	With this said - Here is an STL to OpenSCAD converter on thingiverse, which converts STL format to OpenSCAD format. https://www.thingiverse.com/thing:62666 - but it doesn't appear to work.		With this said - Here is an STL to OpenSCAD converter on thingiverse, which converts STL format to OpenSCAD format. https://www.thingiverse.com/thing:62666 - but it doesn't appear to work.

			=Reverse Engineering STL to OpenSCAD=
			*Advanced workflow - [https://www.youtube.com/watch?v=qHa2c0L9zz4]

	=Options=		=Options=

Marcin: /* Problem Statement */

2019-04-24T20:28:16Z

Problem Statement

← Older revision		Revision as of 20:28, 24 April 2019
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	STL files are to be found everywhere in the 3D printing world, and it is useful to edit them. For OSE, our core CAD tool is FreeCAD. However, one has to step into the slow lane by using OpenSCAD to modify STLs, as there is no great way to edit STLs in FreeCAD.		STL files are to be found everywhere in the 3D printing world, and it is useful to edit them. For OSE, our core CAD tool is FreeCAD. However, one has to step into the slow lane by using OpenSCAD to modify STLs, as there is no great way to edit STLs in FreeCAD.

	Effectively, STLs are useless from the standpoint of ~~solid~~ design as they are meshes and do not work the same way as solids (boundary representation objects like STEP). FreeCAD works easily with STEP imports - and STEP files can be modified. Not so for STLs.		Effectively, STLs are useless from the standpoint of re-design within FreeCAD -as they are meshes and do not work the same way as solids (boundary representation objects like STEP). FreeCAD works easily with STEP imports - and STEP files can be modified. Not so for STLs. Sometimes STLs can be imported and made into solids in FreeCAD, see [[FreeCAD 101]] video number 2.

	It appears that the best workflow for STL modification (derivatives of STL files when FreeCAD source is not available) is to use an STL editor such as [[OpenSCAD]] or [[BlocksCAD]] or [[OpenJSCAD]]. Modification occurs in the STL editor, and then the file is imported to FreeCAD. PITA, but that's all we have for now in the open source.		It appears that the best workflow for STL modification (derivatives of STL files when FreeCAD source is not available) is to use an STL editor such as [[OpenSCAD]] or [[BlocksCAD]] or [[OpenJSCAD]]. Modification occurs in the STL editor, and then the file is imported to FreeCAD. PITA, but that's all we have for now in the open source.
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	Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can be rendered - and EDITED - in the FreeCAD OpenSCAD workbench. [https://www.youtube.com/watch?v=G66zAjnZpcc].		Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can be rendered - and EDITED - in the FreeCAD OpenSCAD workbench. [https://www.youtube.com/watch?v=G66zAjnZpcc].

	With this said - Here is an STL to OpenSCAD converter on thingiverse, which converts STL format to OpenSCAD format. https://www.thingiverse.com/thing:62666		With this said - Here is an STL to OpenSCAD converter on thingiverse, which converts STL format to OpenSCAD format. https://www.thingiverse.com/thing:62666 - but it doesn't appear to work.

	~~Does that~~ work?

	=Options=		=Options=

Marcin: /* Options */

2019-04-24T20:25:52Z

Options

← Older revision		Revision as of 20:25, 24 April 2019
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	*[[MeshLab]] has export to DXF 3D format, and importing to FreeCAD works (MJ). It may break for large files?		*[[MeshLab]] has export to DXF 3D format, and importing to FreeCAD works (MJ). It may break for large files?
	*If OpenSCAD file is available - it can be processed in OpenSCAD command line to make it smooth upon import to FreeCAD. [https://www.youtube.com/watch?v=1IcWB_vd5HI]		*If OpenSCAD file is available - it can be processed in OpenSCAD command line to make it smooth upon import to FreeCAD. [https://www.youtube.com/watch?v=1IcWB_vd5HI]

			=Scaling=
			*FreeCAD scaling is tricky. Another way to do it is to convert to STL, and scale in simple platforms like BlocksCAD or [[Cura]].

Marcin: /* Problem Statement */

2019-04-24T20:24:32Z

Problem Statement

← Older revision		Revision as of 20:24, 24 April 2019
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	It appears that the best workflow for STL modification (derivatives of STL files when FreeCAD source is not available) is to use an STL editor such as [[OpenSCAD]] or [[BlocksCAD]] or [[OpenJSCAD]]. Modification occurs in the STL editor, and then the file is imported to FreeCAD. PITA, but that's all we have for now in the open source.		It appears that the best workflow for STL modification (derivatives of STL files when FreeCAD source is not available) is to use an STL editor such as [[OpenSCAD]] or [[BlocksCAD]] or [[OpenJSCAD]]. Modification occurs in the STL editor, and then the file is imported to FreeCAD. PITA, but that's all we have for now in the open source.

	Does the OpenSCAD workbench do the same in FreeCAD?		Does the OpenSCAD workbench do the same in FreeCAD? Yes, as long the OpenSCAD text file is available, it can be rendered - and EDITED - in the FreeCAD OpenSCAD workbench. [https://www.youtube.com/watch?v=G66zAjnZpcc].

			With this said - Here is an STL to OpenSCAD converter on thingiverse, which converts STL format to OpenSCAD format. https://www.thingiverse.com/thing:62666

			Does that work?

	=Options=		=Options=

Marcin: /* Options */

2019-04-24T20:11:17Z

Options

← Older revision		Revision as of 20:11, 24 April 2019
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	*Gmsh may have export to STEP? [https://www.featool.com/tutorial/2017/11/06/gmsh-cad-step-file-import-and-mesh-generation-tutorial]		*Gmsh may have export to STEP? [https://www.featool.com/tutorial/2017/11/06/gmsh-cad-step-file-import-and-mesh-generation-tutorial]
	*[[MeshLab]] has export to DXF 3D format, and importing to FreeCAD works (MJ). It may break for large files?		*[[MeshLab]] has export to DXF 3D format, and importing to FreeCAD works (MJ). It may break for large files?
	*If OpenSCAD file is available - it can be processed in OpenSCAD command line to make it smooth upon import to FreeCAD.		*If OpenSCAD file is available - it can be processed in OpenSCAD command line to make it smooth upon import to FreeCAD. [https://www.youtube.com/watch?v=1IcWB_vd5HI]