The Contents of this archive are (copywrite) 1997 by Doug Garmon They are NOT public domain. They have been made available for non-commercial use. Archive contents: kayak.gif rendered graphic of hull kayak.txt this file garbd.ps postscript of unfolded garboard garbd.unfold text file of unfolded data garbd.gif lowres picture, similar to .ps file halfhull.dxf 3d dxf file of half hull sheer.ps postscript of unfolded sheer plank sheer.unfold text file of unfolded data sheer.gif lowres picture, similar to .ps file ----------------------------------------------------------------------- Included are 'plans' for a stitch & tape kayak. The documentation is quite sparce, sorry. LOA 17 ' Breadth 22.5 '' Those of you familar with my web page know this is not the first boat I have designed. However, I spent a few days of my spare time in 1996 writing a computer program which converts data in an offset- like format into a flat, 'unfolded' version of the original data. To clarify, a stitch & tape boat is a little like making a paper cup-- you take a FLAT piece of stock, stamp out a shape, glue the pieces together and you have a 3 dimentional object. In both cases (cup or boat), you need to know the final shape BEFORE you design the flat template. The 3d shape is then 'flattened', while still retaining all the original proportions. The software is not 'design' oriented--although I can adjust verticies dynamically (fine-tuning a design), it's not intended for 'creation' of the lines of a boat, only unfolding an existing design. So don't bug me for copies thinking you can crank out boats on your computer. The actual lines of the boat evolved over a period of months, based largely on my prior experiences in boat design. Note: This project does NOT include plans for the deck, for internal bracing, or for construction details. These plans are for the HULL only. The rest is up to individual builders, who should be familiar with stitch- and-tape techniques, bracing, hatch design, etc. Later, I might add to this document, though it will never be a full tutorial on S+T boatbuilding. A minimal bracing plan would include: 1) sheer clamps 2) a couple of thwarts to support the deck 3) a keelson (optional) Flat, peaked or curved foredecks would all work, though a flat foredeck might be a little tight. A flat aftdeck should be fine, or with maybe a slight curve or peak to shed water. FILE FORMATS-- .GIF : The .gif files contain a lowres image of the unfolded planks. They are too small to accurately read the index #'s. Generated mostly for online users and f.y.i. . .PS : Postscript format vector images. These files contain graphics of the unfolded planks. They can be printed using a postscript printer (you may need to tile these). Certainly they can be imported into a number of desktop pub programs, where they can be scaled, etc. Those w/o postscript printers can use a freeware ps interpreter like 'ghostscript' to dump the files into most any printer. The verticies are labeled on the .ps output and correspond to the index #'s listed in the .unfold files. .UNFOLD : index # D above ln D frac D along ln ------------------------------------------------------ 0 9.999999 10 0 1 9.999999 10 0 . . . 36 9.13591 9 1/8 177.5917 37 10.79161 10 13/16 177.5917 This contains the 2 dim template, or the actual pattern needed to define the planks of the boat. NONE of the other info is really neccesary (having the index #'s shown in the postscript file, though, is a very helpful reference). index # - corresponds to the vertex label on the .ps file graphic D above ln - Distance above Baseline, in inches, decimal D frac - Distance above Baseline, in inches, fractions of inches D along ln - Distance alone Baseline, in inches, decimal (generally in whole inches. sorry, a decimal point may rear it's ugly head occasionally.) To use the data, you need to draw a baseline on your workpiece. So, looking at the .ps printout, the 'D above line' corresponds to the height above the baseline, and the 'D along ln' to the length along it. Mark your verticies on the plywood, then use a batten to draw a connecting line between the dots (or nails). .DXF : A standard (I hope) autocad 3d file of the halfhull model. Builders don't need this one at all, but folks who want to play with 3d designing or for rendering may have use for it.