Here's the skinnards on the innards folks,
The interior is designed to distribute waterflow velocity equally throughout. The center goes down to 1mm thickness at 4mm diameter. Each pie wedge is permiated throughout with waterflow tunnels and the top surface of each pie wedge recieves waterflow, controlled by top gasket. The diagonal channels are blocked by the 2nd layer encasement and are drilled out to a larger diameter hole. Water is forced down the center inlet then through the six verticle slots and over the top surface. The water which goes through the diagonal channels with the larger tunnel is forced into the tunnels drilled through each pie wedge and exits on all four sides up through the 2nd and third layers and out the four exit tubes. The rest you may be able to tell from this preview
Surface area is immense in the small confined cube of 1.3" X 1.3", the flow rate I can run through it is high, the temperatures that result are low. And yes it does involve the use of a bandsaw
Opinions appreciated.
