This time it is a simple tool, I tried to make a convenient marking gauge. You can use "draw parallel lines from the edge of the work", "mark the same distance in multiple places", "measure the depth of the groove". I will introduce "simple things that can be created without using tools" and "items freely made"
Wild Spirit by Del. https://soundcloud.com/del-sound Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0 http://creativecommons.org/licenses/b... Music promoted by Audio Library /watch?v=U2kuuRH7kYo