AgCWby90CS said:
I'm pretty sure he was talking about straightening the edge of a board which can be done on a tablesaw. Getting rid of cups twists in the board can be done with a thickness planer using the proper sled and you can also flatten a board using a router jig. Of course to do these things the most efficiently you need a joiner but the joiner is a fairly limited use machine for its price and therefore a lot of people don't have it or feel they can afford it. There are workarounds to be able to do much the same thing that the joiner can do with other pieces of equipment that are more commonly used. You are right in what you say about the uses of a joiner.
Actually a track saw or straight edge and circular saw work very well in straightening and edge of a board.
I know. It just seemed like he thought that was the only use when it's really just secondary to face flattening.
Those are the exact reasons I don't have one now. It's a very expensive piece of equipment that only does one thing. It's a very important thing, but it's still only one thing. My biggest issue, personally, is the set up time.
I just don't have a lot of time to get everything out of the garage, set it up, work, and then put everything away. If I can get an hour or two I'm lucky, and setting up and tearing down eats a lot of that time. Usually by the time I'm set up and have started cutting, my wife is calling me in. With even a small 6" or 8" bench top jointer on a cart, I can start working almost immediately instead of taking the time to level out and secure every board before starting on it.
It can certainly be done, but it's a PITA.
ETA For really clean, straight edges I'll use a straight edge and router instead of a saw. A saw will get me close to my finish dimension, but a strait bit gives me a perfect edge without any tool marks. You can also shim the outfeed side of a router table fence to make it a sideways jointer and get a cleaner edge than a saw.