| Base support, summer 2015 (Brazilian undergraduate interns: M. Pacheco and E. Frazao, ) |
| Sand tank arrival, fall 2015 ( graduate students: D. Goff, "Ru", M. Morrison) |
| Highly-permeable pebble base layer |
| Sand tank filled with sorted sand; X-axis gantry visible, fall 2016 (graduate students: B. Odom, N. Benton) |
| Y-axis gantry under construction |
| Y-axis gantry installed, spring 2017 (graduate students: M. Morrison, B. Odom, N. Benton) |
| Three-axis robotic gantry, spring 2018 |
| Control box, spring 2018 |