Summary:
This video is about how to straighten the edge of a board with a table saw and a scrap of plywood, without using a jointer.
The narrator first explains why a jointer is the best tool for straightening edges, but then acknowledges that not everyone has one. He then shows how to use a table saw and a scrap of plywood to achieve the same results.
Here are the steps involved:
Find a piece of plywood that has at least one factory-cut edge. This edge is guaranteed to be straight.
Run the factory edge of the plywood against the table saw fence and skim the other edge. This will ensure that both edges of the plywood are straight.
Move the fence over by a small amount, equal to the thickness of the saw blade's kerf.
Skim the edge of the plywood for about two feet.
Turn off the saw and flip the board end for end.
Clamp the board down and joint the board by running the concave edge against the edge of the plywood.
Run the newly straightened edge against the table saw fence and rip the opposite edge straight and parallel to the first one.
The narrator also mentions that it is important to straighten the concave edge of the board first, if it has one. This is because a hollow edge will give you two points of contact, so you can make a stable cut. A crowned edge will rock as you run it through the saw, so it is important to rip it away after straightening the concave edge.
The narrator concludes the video by mentioning a discount code for a sharpening system that he featured in a previous video.