Other Sources for Plans

Scale Length has downloadable fretboard templates.
America's Shrine to Music Museum Viols and Violin family.
Citè de la musique, Paris various early instrument plans.
Crane, varioius instruments. Free downloads.
Edinburgh University's Collection of Historical Musical Instruments. Plans for sale.
Elderly Instruments various instrument plans.
Francois Charle Selmer guitar plan and book.
Guitar Plans Unlimited various instrument plans, acoustic and electric. They also design custom plans to customer's specifications.
Luthiers Mercantile Int. various instrument plans.
Makoto Tsuruta, 19th century guitar plans, FREE downloads.
MIMF various plans.
Museum of Fine Arts, Boston various instrument plans.
Music Muse various instrument plans.
Musicmaker's Kits various instrument plans.
Pilgrims Projects, guitar, violin, dulcimer, banjo, mandolin, ukulele and other instrument plans.
Art Robb various instrument plans.
Stewart-MacDonald's Guitar Shop Supply various instrument plans.
Woodworkersworkshop, various free downloads of plans.