Thingiverse
Biohazard Symbol
by ScribbleJ
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There's not a whole lot to say about this. It's a biohazard symbol in OpenSCAD, to the exact government specifications. I used this as a reference:
http://www.michigan.gov/documents/CIS_WSH_part476_54539_7.pdf
It's done in the 2d subsystem, so you can use it in 2d or apply a simple linear_extrude() to convert it to 3d.
The example STL and DXF files are 51mm across, which is the diameter you get when you use A=1 according to the spec; the OpenSCAD file allows you to easily specify the diameter you desire, and can optionally join the 'inner circle' to make this a single object for printing instead of being 4 shapes as it actually is properly.
http://www.michigan.gov/documents/CIS_WSH_part476_54539_7.pdf
It's done in the 2d subsystem, so you can use it in 2d or apply a simple linear_extrude() to convert it to 3d.
The example STL and DXF files are 51mm across, which is the diameter you get when you use A=1 according to the spec; the OpenSCAD file allows you to easily specify the diameter you desire, and can optionally join the 'inner circle' to make this a single object for printing instead of being 4 shapes as it actually is properly.
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