Hi Greg.
I am in Ireland, I bought your book{s} and have found them most helpful, I am currently building 2 bikes based on your suggestions, with some slight variations. Both are A123 based, 15Ah and 10Ah respectively.
One minor problem I did have with your book was that the practicalities of cutting angles into wood, especially with a hand-saw, were not too-well explained.
I have zero carpentry experience. I have been having some success but only because I keep trying and sometimes get lucky.
Right now I would like if you could flesh out the measuring and cutting of the cross-piece which is inserted into the lower part of the box to strengthen it before part of the lower box is cut out to make room for the cranks.
Also, what teeth:ratio did you settle on for the rear freewheel: single speed.
Thanks.