I noticed that after running my 4th axis for 3 cuts, what I thought was enough tension on the belt- was not enough. I would suggest that people readjust the tension on the belt after 1 or 2 cuts. The easiest way I found to do this is to use a big flat head screw driver and put it between the motor and the 3 jaw chuck. Turn it side ways to create more space between the motor and chuck to create tension on the belt. My belt is fairly tight now with very little slack.
I think I figured out the question of where those last two screws go. Right behind the tail center to lock it in place along the track.
As a tip, I made a little bent sheet metal bracket that is captured by these two screws but loosely floats on top the tail stock carriage and folds under carriage plate so the screws bind against the sheet metal instead of directly against the aluminum tail stock rail.........this prevents the rail from getting all scarred up by the binding screws.
Post by recklessdriver on May 11, 2020 18:09:11 GMT
Would never have guessed that. Into my miscellaneous spring assortment it goes. First thing my father taught me when I was 12 standing in front of the lathe is the chuck key only is allowed to touch the chuck when you are loading or unloading a part, else it belongs in the holder on the side of the machine, but otherwise never in the chuck! -Thanks.
I completed the assembly of the 4th axis. This spring was packed loose in the bag of 4th axis hardware. Anyone know what it's for?
Yes it goes on the chuck key so you don’t accidentally leave it on the 3 jaw chuck. On a lathe if you leave the chuck key on and start the lathe at 3000 rpm you’ll have a bad day!! Basically: SAFETY SPRING!