Coffee Carafe Model and Render

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Coffee Carafe Model and Render

Postby ppemawm » Wed Mar 05, 2014 8:03 pm

Household appliances make good examples for learning and practicing FreeCAD parametric modeling. They are readily available and can be measured to ensure that model proportions are correct. This project was chosen because of the complexity of the injection molded handle and the three dimensional spout formed on the rim of the carafe.

The handle was modeled as a Part Design/Pad with a pocket for the handle opening which was then hollowed by using the Part/Thickness tool. A few other pad features and pockets were added to complete the hinge features.

To keep the sketches simple, the body of the carafe itself was modeled using Part Design pads and pockets rather than a revolution. The spout and rim were formed with a Part/Loft from three axial cross-sections. The thickness tool did not seem to like the loft so a smaller spout and rim were lofted and then Part/Cut from the larger loft. The Cut loft was then joined to the body with a Part/Fusion.

The lid was modeled with Part Design/Revolution with pads and pockets added to complete the hinge features. The band was modeled with a simple Part/Sweep and Part Design/Fillets.
This is the original build file. Each part or group was modeled in place by locating the beginning sketches at their respective mating surfaces.
Picture1.jpg (31.85 KiB) Viewed 2628 times
Each part was saved as a .STEP file and imported to a new assembly file. It is much easier to move .STEP objects for the exploded view rather than relocating the sketches and compromising the original build file.
Exploded_view.JPG (21.67 KiB) Viewed 2628 times
FreeCAD mesh.stl files were created using Mesh Design workbench/ Create mesh from geometry.../Export mesh. The file was imported to Blender V2.69 and rendered using the Cycles Render engine.
render.JPG (54.75 KiB) Viewed 2628 times
The FreeCAD file size is 5.8 Mb which takes about one minute to open with the following configuration:
2012 TOSHIBA Satellite P750 Laptop, 64 bit OS, Intel I7 2670QM CPU @ 2.20 GHz, 8.0 Gb RAM
OS: Windows 7 Platform: 32-bit Version: 0.13.1828 Python version: 2.6.2
Qt version: 4.5.2 Coin version: 3.1.0 SoQt version: 1.4.1 OCC version: 6.3.0
"It is a poor workman who blames his tools..." ;)
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Re: Coffee Carafe Model and Render

Postby maggus » Mon Apr 14, 2014 10:16 am


that looks really great !
Especially the renderer output -- just put some lint and dust on the glossy surfaces and some people will not notice that it´s not real !

Thanx for showing ...
Best Regards
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Re: Coffee Carafe Model and Render

Postby yorik » Mon Apr 14, 2014 1:39 pm

excellent showcase... thanks for sharing!