Home Garden

DIY Archery Bow Tillering Tree

Making your own bow from a blank piece of wood is a time consuming project. Once you have carved the basic shape of your bow it is time to begin tillering. This is the process of removing small bits of wood from the belly (string) side of the bow to get an equal bend on both arms. The proper way to measure the bend of the arms is to clamp the bow into a tillering tree. This is basically a board marked with measurement lines that let you see how far each arm bends when the bow string is pulled.

Things You'll Need

  • Board (2-by-4 inches by 8 feet)
  • Jigsaw
  • Plywood (2-by-2 feet by 5/8 inch)
  • 16d nails
  • Drill with 3/8 inch bit
  • 2 bolts (1/4 inch by 10 inches) with washers and nuts
  • Work gloves
  • Safety glasses
Show More

Instructions

    • 1

      Cut two pieces off the board with your jigsaw. Make the length of one piece 10 inches. Make the length of the second piece 48 inches. Discard the remainder of the original board.

    • 2

      Cut a notch into the end of the 48 inch board. Make the notch 1 1/2 inches by 1 1/2 inches. Stand that board on its side. Drill two holes through the board, one 2 inches from the long end of the notched end and the other six inches from the same end.

    • 3

      Lay the 10 inch board flat on your work bench. Drill through the board in the same two spots as you did in the 48 inch board.

    • 4

      Lay the 48 inch board flat on your work bench. Slide the board so that its end is flush with the edge of the table. Have your assistant hold the board while you center the end of the board on the plywood base. Drive three of your 16d nails through the plywood and into the end of the board to secure the structure.

    • 5

      Stand the assembly on its plywood base. Slide a bolt through each hole in the upright. Slip the 10 inch board onto the bolts. Add a washer and nut to each bolt and twist both hand tight.

    • 6

      Stretch your tape measure from the top of your tillering tree. Make a series of marks on the face of the tree, under the lowest point of the 10 inch board. Space out the marks placing one every inch for 36 inches.