The fruits of labor... a whole semester's worth of calculating. It was made by myself and 3 other students. Just finished getting it machined today. I believe it took something like 30 hours of work. Came out beautifully though
The block it self is about 70x50x10mm with the water area being 6mm deep. Each of the 49 pins is square, 2mm per side with 2mm pathways. An acrylic top was also machined and it accepts danger den 3/8" barb fittings.