I've written this so that even a novice can follow it. I realize that most people visiting your site have some experience tying knots so if this is to long winded feel free to edit/add/delete any parts or photos.

                                                            Turkshead Cross Tutorial by Chris Benco
Print out the turkshead cross pattern at 8 1/2" x 11"
Tape the sheet onto a 1" x 10" piece of pine. Use 3D 1 1/4" finish nails and put one at every crossing point (fig. 1) For you right handers start at the upper right and work down to the lower left, opposite direction for the lefty's, fewer bashed fingers this way. Once you've finished, put in a nail at the appex of the outer lines as well (fig. 2 red arrows).
To start off I'll be using some 1/8" x 3 strand cotton twine. It's best to use something small to start as the knot gets a bit crowded otherwise. You'll need at least 20' to go all the way around the board.
Tie a slip knot at one end and put it around the #1 pin. Work your way around following the numbers. When you reach #13 you'll come to the first crossing with a red dot, tuck your end under(figs. 3 and 4). Continue following the numbers around till you reach #18, the second crossing point with a red dot, again tuck your end under (fig. 5). Continue on, tucking under at each red dot till you finish, past #88 to #1 again (fig. 6).
In fig. 7 you'll see two red dots and a green one with lines going to their respective spots on the cross, carefully lift the knot up off the nails without disturbing these three holes (figs. 8 and 9).
Fig. 10 shows the tubing for this tutorial, 5/8" for the vertical piece with a hole drilled through for the  3/8"  horizontal piece. You can use any size tubing/pvc pipe or even solid wood with half laps. The bigger you use, the bigger the knot can be.
Carefully position the mess over the cross (fig. 11). I find it handy to put the cross in a bench vise so your hands are free and you don't lose the bottom of the knot. Start anywhere and work your way around the knot tightening up as with any turks head (fig. 13).
At this point (fig. 14) you can continue with the same twine or switch to a larger size and and follow around as any standard turks (fig. 15). You'll need your spike for those corners (fig.16).
Three times around for this one (fig. 17) and you can pull the tubes out (figs 18, 19 and 20). Finish in the usual fashion by sewing the strands  together on the inside of the knot and varnish all. You can also work the ends up to the top of the knot and use them to start a lanyard.
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July 4 1959

Hi Vince,
A bio huh? I grew up in my fathers sail loft, he owned "Yardarm Sailmakers" in Needham, Ma. from 1960-1987. Doing mostly traditional handworked sails for east coast schooners and many square riggers, even using traditional flax material for some. He also taught me the awning trade and I went into that business myself. I also dabble in wood working and have built 4 small sail boats and a canoe over the years.

Some personal info not intended for the bio, I was diagnosed with a rare and chronic bone marrow disorder (polycythemia vera)  in 99 after a severe clot in my left arm. My bone marrow produces twice the number of red and white cells and platelettes causing blood clots. Been on coumadin, with monthly phlebotomies up until 2 years ago when my blood counts started to level off. The past few months my counts have started to drop a bit below normal so I may be headed for what's called the "spent phase". I tried to continue with my awning business in S. Fl. for a couple more years after diagnosis but continued to have clots from the physical stress of the job so I'm no longer working.

Have you tried tieing the knot yet? I've done so many that It takes me no time at all, doing the tutorial only took about 6 hours with stops to take pictures and all. Tieing the knot itself would only take about four hours or so for that small sized one. The large one pictured in the WBF thread has taken many more hours, probably close to 60 hours now with maybe 20 more to finish. Good thing your wife is a psyche nurse,  Some of these knots can drive a man knuts.

Yours, Chris Benco