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The printing time is quite a lot, specifically for printing the pots. these require high retraction distances in order to not string, and therefore take quite a bit of time (~4 hours each, with 0.1mm layer height). The pot holders took probably about 5 hours each.As far as the amount of plastic used, with 0.8 mm wall thicknesses I believe the entire pipe took less than a 1 kg roll of plastic, so ~$20 or so, depending on where you source your plastic.
Modular Hydroponics SystemView Instructable »