by Peter Wilcox » Mon May 07, 2012 10:04 pm
If the tailblock and heelblock make a right angle with the top, then the back has to be slightly longer than the top, which is 30". By using either 5/{sin[arctan (5/30)]} or the Pythagorean theorum, it comes out to 30.414". I suppose the extra length should be stretched out over the whole back, but I just added it to the straight parts in the middle, keeping the upper and lower curves the same.
I don't know how to calculate the widths of the sides at different points, especially near where they meet the end blocks, so when the time comes I'll temporarily attach the top and back together with the head and heel blocks, and draw out a template.
Maybe I can't fix it, but I can fix it so no one can fix it