I'm going to put this into cnc terms but this is not for a cnc router. It is for a home made saw mill. This mill has only an x and z axis. My question is for the z. What I have is four acme rods placed aprox 40" square holding the z "carriage" this carriage carries the weight of a 25hp Wisconsin engine and the bandsaw itself. Estimated weight of 600 lbs. Each side of the acme rods are connected by 1" ss rod with mitered gears with a chain drive between the two rods. There are four brass acme nuts on the top of the carriage, and four on the bottom (approx. 24" apart) The fellow that built this spared no expense and knew what he was doing. It is a great idea BUT, will it work? I am concerned of the play (which is minimal) between mitered gears and chain drive with the timing of all four acme rods. It would seem to me that binding might be a problem. What do you think? Thanks in advance!
--Rick