I also build many of my saws themselves.
I introduce you to my big frame saw. The blade itself is also filed. It is for ripping and has 2.5 dpi. The blade has 80 teeth and the files took about 7 hours. My starting material was an old saw blade of a whipsaw and some pieces of the tree of ash.
At the end of a few pictures of a small frame saw for cross-sections and has 10 dpi.
The whipsaw I have divided.
For this wood I built the frame.
Cutting of parts with hand tools.
Recording the distance of the saw teeth. Filing begin with.
Restrict the saw blade can be seen in the video.
In the video, the saw from minute 23 to see it in action.
A few pictures of the small saw.