This is a list of things used, besides all the tools for planing (if necessary), cutting, and drilling the boards.
- white maple
- The wood I decided to use. The white maple board ended up about 19 mm thick. The board dimensions for each of the two pieces were 227.3 mm x 424.0 mm for an overall board size of 454.6 mm x 424 mm. There is a 14 mm boarder and the line spacing is 23.7 mm and 22 mm for the shorter side.
- 1/4 inch dowels
- The dowels used to hold the two halves together are 1/4 inch, these are just held by pressure and are removable by hand. (note: my latest version uses mangets instead of dowels to hold the halves together)
- pen/marker
- I did some test runs of a standard Sharpie (fine point), Sharpie (ultra fine point), Sharpie pen, Staedtler Lumocolor F, Staedtler Lumocolor Special F. I would not use the Sharpie pen and the ultrafine point, other than that it sort of seems personal preference. I liked the look of the Staedtler Lumocolor Special F best and used that.
- drill gauge/drill index
- For making star points that are about 4 times larger than the line thickness.
- General Finishes High Performance Water Based Topcoat, Flat
- I highly recommend this exact finish. It is a urethane/acrylic blend. Whatever you use, make sure it is water based to avoid potential ink bleeding problems with oil based finishes.
- 18" ruler
- A 18 inch steel ruler with cork backing. The cork backing is somewhat important to prevent ink bleeding. See the image below for details.
Here is what I did to make the boards,
- The first steps are planing, cutting the boards, drilling holes for dowels, and then sanding until level, starting with about 80 grit and working up to about 220 grit.
- Next, a moderate layer of the water based finish is applied and allowed to dry for a day or two. Some water was added to the finish to thin it out a bit, since the goal of the first coat is to fill the wood grain and block it from causing the ink to bleed.
- A very light sanding just to smooth the finish for drawing lines using 320 grit sandpaper.
- The grid line locations were marked with pencil, about 1 cm marks near the outside border of all sides.
- The outside box was drawn. Extensive use of painters tape was used to cover where the end of the lines are. It also provided the benefit of testing where the ruler and pen would make a line. The nice part about having the coat of polyurethane applied is that mistakes can be 'erased' use a razor knife or hobby knife.
- The inside grid was drawn and let sit for a day.
- Two more light coats of polyurethane were applied and let dry for a day or two.