Hi,
The PTO will not reverse on my tractor.. Sometimes the log jams in the screw, but it's rather easy just to cut it with the chainsaw enough to weaken it enough to remove. It is quite fast, but you can't split as big of a logs with it as with a hydraulic splitter. Also, one needs to be really careful with the screw, as in not to get hit if the wood starts spinning, or not have any of the clothes stick to the screw.. It has a switch going to the fuel cut-off, but it takes a while to wind down from the working RPM, so getting anything caught in there would be a bad idea.
I'll shoot a video later on from the screw splitter.
The picture of guillotine machine is actually from our old machine. For this spring we bought a new very similar one, marketing video can be found here;
http://www.youtube.com/watch?v=kE6TXEe3l6g&feature=player_embeddedIt features a longer and wider conveyor, the biggest improvement is that it only very rarely jams, the old red one was jamming the conveyor mayby with every 20th wood you stuck in there.. really annoying. I like to work with a tad slower speed than what the guy uses in the video, that pace would bring too much sweat to the forehead..
The quillotine machine has proven quite reliable, like the old one we bought this new machine along with 13 other nearby households, and even with such a large use, the old one lasted 16 years.