Made the first batch of bricks. One thing I noticed is that I had to put some weight on the bricks as they wanted to do some expanding, so I lined them up and put a 2x4 with weight on top of them to keep them compressed.

4 hours after making the bricks and they are stabilizing at about 3 1/4 inches long on average.

16 bricks in about 2 hours. I started getting faster at it as it went along.



closeup.