Production - Slicer:
In this tutorial we will at how to generate a polysurface from a given volumetric mesh. This in order to extract height curves from the newly created BRep, label them and layout these curves for lasercutting.
Grasshoper definition and example Rhino File (zip): grasshopper_slicer
Grasshopper definition, which doesnt number each part, but just every level (might be easier to use with small or delicat pieces (zip) divide_geometryandmove_2
Production - Grillages:
Eggcrate with Notches fabrication http://www.grasshopper3d.com/forum/topics/grillage-fabrication-1
Production - Numbering:
in order to get the most out of it: Engraving fonts and a script, which vonverts all slected textobjects into single stroke font curves. (if ushc a font was used last time when using the textobject. these settings are taken into considertaion in the script) Just drag and drop teh script and use ” ConvertTextToGeometryWithTextSetting” as command in order to call the function.
zip file containing fonts and rhinoscript: cnc_singlelinestrokefonts
another approach using blocks: http://biosarch.wordpress.com/2009/07/17/cnc-friendly-numbers-in-rhino/
Post-Production - Smoothening Surfaces:
tools for reducing MeshCount in Rhino: reduceMesh (newest version here http://en.wiki.mcneel.com/default.aspx/McNeel/MeshStuff.html )
tool for subdivision of meshes: http://www.wings3d.com/
tool for Subdivison in Rhino: Tsplines http://www.tsplines.com/
Tutrial Production: smoothing and pipeing
1. Generate model in topostruct
2. Export as dxf to rhino
3. Download and install reduce mesh plug in from here http://en.wiki.mcneel.com/default.aspx/McNeel/MeshStuff.html )
4. Open dxf surface in rhino
5. Scale to the desired size ( favoured rp size 15cm x 10cmx 15cm)
6. Call the “reduce mesh command”
7. Reduce by 80%
8. Export as *.3ds
9. Download and install wings3d from here http://www.wings3d.com/
10. Import and select geometry
11. Right click and “smooth” as you like
12. Export as .3ds
13. Import to rhino
14. Call “meshtonurbs”
15. Call “Explode”
16. Call “duplicate border”
17. Call “explode”
18. Call “select duplicates”
19. Delete duplicates
20. Start grasshopper
21. Assign linebundle to “geometry button”
22. Connect geometry to pipe button and define the radius
23. Bake
24. Export as *. stl in a reasonable resolution ( size of file should be around 50-70 mb)
25. Enjoy!