Free
It's free to download
Technical
See http://www.appropedia.org/Open-source_parametric_3-D_printed_slot_die_system_for_thin_film_semiconductor_processing
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Western University's Free Appropriate Sustainability Technology (FAST) Research Group
I am a professor that runs Western University's Free Appropriate Sustainability Technology (FAST) research Group Research group. I wrote the Open Source Lab: How to Build Your Own Hardware and Reduce Research Costs.
Free