Bezier curves and knots script for Blender
by lorenmcconnell, published
I developed a customizable picture frame as a testbench for my work. You can use it as a stand-alone project to generate a picture frame with text (or without).
Adding Celtic knot elements to that, my Celtic Picture Frame is an early result of these experiments.
I have more ideas and enhancements that I hope to share later. The script is is in a usable state now, so give it a try!
UPDATE: 2012 Mar 6 -- version 1.1. uploaded to fix bugs in the utility function ReadCurveControls()
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The script is attached to this Thingiverse entry. Hit the "Download this thing" button and grab the latest .py file, then run it in Blender. You can copy and paste the test into the Python Console window in Blender. Another way is to open it in a "Text Editor" panel Blender, then use the "Run Script" button in that.
Could you please give a better idea of exactly where on blender.org this script is. I have searched through the Python Scripts catalog on blender.org (http://wiki.blender.org/index.... and could not find this anywhere. Celtic knots are awesome, and I would love to be able to make them easily in Blender, and print several of them out.
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Blender is highly sophisticated, professional-grade, 3D modeling and animation software. It is absolutely amazing -- one of the best software packages I have ever used. But please expect to spend some time learning to use it. There are many excellent tutorials and manuals on the Blender web site, and on YouTube.
Open the Python ".py" file in a Blender text editor window and press "Run Script". This will produce bezier curve objects and mesh objects based on the curves. Modify the script to create new curve geometries, or use Blender object modifiers to adjust the results.
Edit "controlPoints" to change the shape of the curves. Add, remove or relocate points, and control handles.
Edit taperControl and BezierCircle lists to change the curve shaping.
The script hides the source objects and creates meshes based on them.
Use File->export to save selected objects as an STL file.
After editing curve nodes in Blender, use the ReadCurveControls function to dump the control values -- you can use them to update your script.
Please send bug fixes and enhancements.
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