Understanding 3D File Formats - STEP, STL, IGES, OBJ and MORE!|JOKO ENGINEERING|

AMF: 0:48
Collada: 2:35
IGES: 4:50
OBJ: 5:56
STEP: 7:24
STL: 8:58
VRML: 10:26
Filesize Comparison: 11:33
Cool Outro: 11:54
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If there is music in this video, it is legally used.

[@cementium]

Thank you for the great explanation and demonstration! Really needed an example how the different "universal" 3d-models work. You have been the only place that has show the visualization of the different file formats.

[@carlosmanuel5992]

OBJ files may be accompanied with a MTL with information about texture/ materials, something STL is missing. So at the end OBJ may contain color.

[@Leukick]

The audio quality sounds like it's from the 2008, but awesomely narrated video.

[@kaustavchakraborty8379]

Bruh this was godly and helped me a lot. thanks man!

[@alienpolygon6926]

Is that Ubuntu Unity? Absolute legend

[@vlogtypea3201]

Thankyou very much

[@TheEtbetween]

Thanks a Million

[@viktorstanik]

Obj transfers materials. Only that app that you are using is not capable of reading it. When you are exporting OBJ you will also get MTL which is list of materials and other settings.

[@soydavila]

thanks!!

[@Sam-yu4ve]

which is best for exporting cad files to meshing packages but maintaining curvature in bezier curves etc and allowing a fine mesh?

[@JokoEngineeringhelp]

Curvature is impossible in a mesh format; you can get a finer mesh however by specifying the mesh parameters when creating the mesh. It varies by platform, this is how you would do so in FreeCAD:
czcams.com/video/SzUexzoZ8xs/video.html

[@philliptoone]

No mention of SAT?

[@jamjestBOLVERK]

Can you tell us what OS or more OSes Are you operating on? Because As far I could tell on your previous videos you may have some Linux disro maybe Ubuntu. And thanks for telling what Step file format is very informative ;)

[@JokoEngineeringhelp]

Yeah I have Ubuntu and for SolidWorks videos I have to use Windows 10 but I prefer linux

[@jamjestBOLVERK]

@@JokoEngineeringhelp Greeting from Debian 10 and having Debian for 3 and a half years, far from 8.0 Jessie. :)

[@JokoEngineeringhelp]

@@jamjestBOLVERK Agreed, Linux is the best and FreeCAD is awesome for working on it!

[@isthattrue1083]

File formats handle geometry differently. Some a circle is a circle and others it's a polygon. So does slicing with a file that a circle is a circle and then printing using something like Arc Welder that prints using arcs and lines, could make true circles or arcs that are not really segmented lines and improve print quality? Arc Weld does dramatically reduce file size, which reduces how much data needs sent to the printer to create the same object. Gcode is shorter because it take less instruction to create a circle than to describe a polygon that looks like a circle.

[@JokoEngineeringhelp]

I'm not that familiar with ArcWelder but I do like true circles when I can get them. When I have to used a meshed (polygon) format, I usually make the mesh tighter than the tolerance of the machine and the segmented lines aren't of much consequence after that.

[@natnaelassefa6582]

What about their file extension?

[@sinebar]

Is it possible to convert a obj to step or stp?

[@JokoEngineeringhelp]

It is but you will not have smooth curvature

[@peterhirschoff4935]

Which formal is 3d printable and not a mesh file aka, has non-cornery circles

[@JokoEngineeringhelp]

Every slicer needs a mesh format to be able to work. I have a video on how FreeCAD can mesh tighter if a rough mesh is an issue for you. czcams.com/video/SzUexzoZ8xs/video.html

[@tealtree4019]

Sow what files is best for printing?

[@JokoEngineeringhelp]

Interestingly the new kid on the block is the 3mf format that is predicted to eventually obsolete the stl format. (In the same way STEP obsoleted the IGES). It's probably the best because it has "bells and whistles" like texture/color information and is in a format that is easy to edit the file itself. As far as just getting the part printed, all mesh files are about the same for the slicer. For quality prints, the fineness of the mesh is the most important part instead of the format. But overall 3mf is looking to be the best file, even though print quality probably won't change between formats.

[@clort123]

I don't think you understand how a slicer works. File format will always have a minimal effect on that print time, I don't get what you were trying to say or why with those numbers