I love these kinds of fonts that have geometric puzzle-solving quality in the design. I was quite happy with how the lowercase found a way to be connected. Then I thought let me not mess with anything else. But a Z is so much like a 2, so I created the 2 out of the Z. Then when 2 was done, I was aprehensive of tackling the 1 because the vertical stem would be off by one brick, and how would that be resolved. Reluctantly I tried it...and it worked. 3 can be created from the B, but the B hasn't been created yet. OK, I guess I have to do the uppercase. A was easy. B was surpringly easy. Which gave me motivation to go on. And surprisingly soon, the whole thing came together. The hardest letters to shape were X and S. Not all letters are very successful, but they are distinctive enough to be recognized as themselves. Not sure about the =, but it will do, I suppose. In any case, no kerning required.