Please watch the video for how i set up the scarf joint. Its easier to show you that way than to try and explain it hear. Also when i first tried to cut this file. Easel did not like the idea of using the same line as a milling line and a parting line. So i made all of my parting lines 1/8" bigger then turned them in to inside cuts. This allowed me to cut everything at one time instead of having to do 2 cuts. The SVG included is with the parting lines adjusted.
1-12″ × 24″ × 1/2" sheet of plywood or MDF
after the handle has dried its time to glue the scarf joint together. This is not somewhere you want to conserve glue. Make sure every surface that is going to touch one another is covered. use a hammer and scrap of wood to make sure the joint is completely seated. Use clamps to hold together if necessary till glue sets.