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I agree, a wood cutting bandsaw blade with less teeth on it would be a bit more aggressive and cut more freely.

That reminds me of my first job. The company next to us had a lot of big machines. On their big lathes they made big rollers for a paper mill. Some of the metal chips that came off that machine had to be cut with a large bolt cutter to keep them from winding their way across the shop floor.

I used to have one of these lathes. Sometimes when I would turn off the spindle using the speed control switch it would run a little after the switch was off. I opened up the speed controler and made some adjustments to some of the pots inside and never had that problem again. I couldn't tell...

I noticed it missing yesterday. Didn't see why. Who post something on youtube but doesn't want anyone to watch it? Strange.

Are you setting the blade at an angle so it pulls back from the cut on the up stroke or is it just strait up and down? It is so cool to see this project come to life. This is something that will be fun to demonstrate for family and friends. I'd like to run one of these on a steam engine...

Looking great! You sure work fast.

.1 degree over say 10 inches is going to be off by over 1/64 of an inch. Not close enough. That's enough to let the saddle rock on the bed. I really think your over thinking what is wrong with the lathe. But that could be a good thing with an older machine. Still I'd play with the leveling...

That still sounds like the lathe bed is twisted a little because the machine isn't level. If you do not have access to a precision level I would try adjusting one of the leveling feet until you see the rocking of the saddle stops. Not the best way to do it but it should show if level is the...

When you mentioned that the previous owner didn't have this problem that made me think. What I think is that maybe the machine isn't level. It may be possible that this would cause the bed to be twisted just enough to let the carriage not sit quite flat. If it rocks just a little bit that could...

Are you sure it's not just a gib adjustment on the cross slide like I mentioned? Make it tighter and do a test cut.

The air spindle is a great way to grind end mills. Many years ago I used to grind end mills on a air spindle unit mounting on a surface grinder. The shop I worked at bought it some place. That thing was smooth as can be. Building one using a large ER collet extension like an ER20 is a great idea.

I remember having a problem something like this on a Bridgeport EZ-path lathe when facing. We would get a pattern across the face when facing. We adjusted the gibs and the problem went away. Haven't had it come back in over 12 years now.

That second water wheel for reverse is a great idea. Someone put a lot of thought into getting the most out of water power on that one.

I think your on to something jasonb. I just found this video that shows the blade motion like you mentioned. http://www.steinkjer-kommune.net/eggevandring/egge/index.php?meny=23

I may be wrong, but in the videos I posted it looks like it is advancing as the blade on the up stroke. On an old machine made of wood there may be enough give in all the moving parts that this would work fine. Then I have to wonder if the aggressive blade they are using tends to pull itself...

This video shows stops that are being used to get the board size. It also shows how the blade is tensioned on this saw at the top with adjustable screws. Much the same way a hacksaw blade is tensioned. http://youtu.be/CcbeAFpt6bU

Just found this video that shows a guy moving the log with a bar. Then he pounds spikes into it to hold it in place. http://youtu.be/pCGBUgv1RvM

I did a search on google to see how the logs were held when cutting. Found this public video taken at old Sturbridge village. http://flic.kr/p/8djh5e Still looking for how they position them.

I guess they could have rolled the log onto the flat side after the first cut then slide it over after the next cuts against some kind of stops. This would be a simple way to get the same size board with each cut. Being that this kind of saw may not have cut that fast it may not have seemed to...

Good work! That video was interesting showing the reverse feed. I wonder how they stepped the log over for the next cut?