Second, revised edition. My book Building a Large Format Camera is an 85 page manual with instructions and plans for building a 4 x 5 in.
Most drawings are to scale.
The book is available by order direct from me. The first edition of my book appeared in 1996. I have also added as an option a more sophisticated ground glass frame design and also a few paragraphs on scaling the plans up for an 8 x 10 camera. The camera has been designed so that it does not require very advanced skills or tools to build. Electric drill, various handsaws, miter box, c-clamps, files, carpenter's square, other ordinary tools.