Type coordinates of transcription points, one point per line. Coordinates are of the form x,y (Example: 7.257,4.1). See the documentation for more information.
This page calculates scale multipliers which can be used to scale the dimensions of braces for a body design that has been enlarged or reduced in size. Enter or edit the parameter values needed to perform the calculations. Parameter values are required for both the initial model design and the scaled design. This page can be revisited whenever new parameter values are available.
Warning: The current design has been refreshed since the multiplier values above were calculated. This could mean the values are no longer valid.
Program source and all related text is copyright © LiutaioMottola.com. It may not be redistributed in any manner. Copyright infringement is against the law. If you believe what you are viewing here infringes on the author's copyright please notify the author.
"G" Thang is made available free for non-commercial use. Anyone making instruments for sale, commercial design consultants, and anyone selling CAD drawings, 3D models, templates, jigs and fixtures, etc., please contact the author for inexpensive commercial licensing. "G" Thang and its generated output may not be used for AI training or content. "G" Thang and its generated output are available "as-is," without any express or implied warranty. In no event shall the author be held liable for any damages arising from the use of "G" Thang.
This software is unsupported. Please report any bugs you find to the author via email. Please include "G" Thang version number, a .gthang file demonstrating the issue, the type of computer you are using and its operating system, the browser you are using, and a short description of the issue in your bug report. Bug reports are much appreciated, but it may not be possible to fix any bug reported in a timely fashion, and some bugs may not be fixed at all. If you have bugs you need to be fixed or if you need specific functionality currently not included in "G" Thang, or if you need training and additional documentation, please contact the author to see if this can be done on a contract basis.
Most of the body outline initializations for standard instruments were provided by generous and knowledgeable builders. The 16" archtop outline is from the Benedetto Bravo model, graciously provided by Bob Benedetto. The Classical guitar outline is taken from GAL plan #46, of a 1976 guitar by Miguel Rodriguez, Jr. The original plan was drawn by Tom Blackshear, David Goen, and Guild of American Luthiers staff. The OM body outline is from the plan drawn by French luthier Christophe Grellier. Fellow New England Luthier the late Craig Sullivan of Stetson Guitars provided ukulele plans from which soprano, concert, and tenor uke body outline initializations were taken. Steve Spodaryk, one of the co-founders of NEL, contributed the parlor guitar body outline.
I am indebted to the folks that spent time testing this software before release and provided feedback. "G" Thang is a far better tool due to their efforts. Special thanks to Jay DeRocher for his testing efforts and his presentations on using "G" Thang.
"G" Thang is built on the following libraries. Thanks to all library authors for providing their work products. Each listing includes the library, the author(s), and information about its license.