I used that book in my apprentice time in the late 70s , I still lend it out to young guys wanting to get started
Replies 5Why not use pie shaped pieices of pine or some other solid boarding . Much easier than developing the unfolded cone shapes on to plywood and worse trying to bend it around
Replies 24Richard you are right the drawing is not perfect . I did it in about 1 min. and drawing on a white board . It was done only to show how easy it is to shift geometrically. This s...
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