23. At this point, all of the hardware (except for the frets and strings, should be in place. Making sure the hardware and wood fits together is a nice thing to do before the wood is sanded and stained. 24. Takeoff all of the hardware and set aside. Fill and level the wood with stainable wood putty. Sand the wood and putty until everything is as smooth as desired. 25. The frets can be put on now or later. For the prototype, the neck and fingerboard were stained and then the frets were put on. Then the frets were filed down and and shaped. The filing process scuffed the stain, so these parts needed to be touched up.
26. Stain the box and neck to desired color. Polyshade (by Minwax) is a combination of stain and polyurethane and worked well for the prototype. 27. Put the frets on now if that wasn't done earlier. Touch up the stain as needed. 28. If desired, put fret inlays on fingerboard. 29. Reattach all of the hardware. Make sure the neck is square and level. Use washers as shims under the braces on the outside of the box to straighten out, if needed. 30. If amplification is desired, solder a piezo buzzer to the mono audio jack. (Red wire to the tip lug and black wire to the shaft lug. Attach the piezo buzzer to the wood. 31. Tie knots to the end of the strings and thread them through the holes in the neck. Thread them through the eye screws and to the tuners. 32. Adjust the cabinet handle bridge to adjust the intonation, as needed. 33. Tune up the strings and rock Make a YouTube video about your instrument and/or take pictures of it. Share the link or pictures to CircuitsAndStrings@gmail.com . 1