I have done this N Scale turnout with bare basic tools without any Jigs. without even NMRA Gauge (because I don't have one). I am sharing so anyone can follow and do the turnouts.
It says at the start of the video "download PDF of CAD drawing from this link" and then gives the link: https://www.handlaidtrack.com/
That is a great video and got me into building turnouts from paper templates along with using a FastTracks fixture. Peco also has some templates you can print out... https://peco-uk.com/collections/turn-out-crossing-plans?page=1&view=48&layout= I've use the FastTrack templates and one of my own for a curved turnout where I couldn't find one with the radiuses that I wanted. I saw the Peco ones but so far haven't tried using one, Sumner