The growing beds

The Eliooo book is quite simple, it use the same IKEA Trofast storage boxes for almost all their setup. They are BPA free, which is always good for growing food. As I bought the net pots at the Prince Edward flower market, they are a bit different than the one you can source on Amazon or Ebay (we don't have Amazon in HK, but Taobao/AliExpress accross the border).

My netpots are larger than the regular 2" described in Eliooo, so I had to buy a different drill hole saw than the recommended that matched my pots.

First you need to place the pots upside down to simulate their position. Keep in mind that you will have plants in them, so don't keep them to close to each other as depending on the crop, they need more or less clearance. 

Drilling the lid is a bit messy as the plastic tend to melt, so you need to drill very slowly. 

When finished with the drill, you need to clean the holes with a cutter blade and remove the melted part.

The final result is close to the design, with only 6 pots per box.

The next step is to drill the bottom part for the water overflow to the next bed. Eliooo said to drill a 14mm hole in the center, and plug a 16mm aquarium tube. It should be sealed enough...