“…These open source hardware economic values increased slightly to 89% for those that used Arduino technology and even more to 92% for those that used 3-D printing. It is well established that fabricating products with a distributed desktop 3-D printer result in lower costs for scientific equipment [1] , [2] , [4] , [29] , [31] , [32] , [33] , [34] , [35] , [36] , [37] . Similarly, automation with an Arduino is also known to reduce costs for a wide variety of experimental disciplines [1] , [2] , [4] , [38] , [39] , [40] , [41] , [42] , [43] .…”