Obvious to me
Ok I am going to give you some good advice. Get a drill blank or something you know is straight that will fit in the chuck. Tighten it down put the dial indicator on it at the chuck and then out 1" and then out 2" or 3" does it get worse? I bet it does. Get a good carbide tipped tool. Take the chuck off of the spindle and take a skim cut off of the face. Then off of the shoulder only gonna take a couple thou off so that you get a continuous cut the whole way around. re mount the chuck and indicate the sucker back in. And Wa-laa now you have an accurate machine. As a side note make sure your gibs are snug so there is no play when you take the skim cuts. This will make your cut not be accurate. With this said you will only be as accurate as your least accurate component. Chuck, collet, tool post, gibs with slop, cross slide with slop. I have had a couple of these little lathes. From the box to a good machine it takes me about 3 hours to degrease, true up and mount to the bench. IMO time well spent.
deadgearplyr said:I bought a mini-lathe recently and I have been practicing doing tips. I got a few collets and ferrules from Chris H. and have been tinkering with retipping.
I am experiencing some problems with run out somewhere on either my chuck or the back end, or something. When I put the collet in it seems to wobble. When I take it out it seems to be fine. I can rotate the shaft and it will do it less, but I know there is some minor thing I am overlooking.
I stuck a rod into the jaws and it seems to run fairly true with minimal run out. When I stick a shaft in there with a collet is when I get problems.
On a few of my tip jobs one side of the tip is being shaved more than the other side and it is really sloppy looking. I know some of you more experience ones out there are probably laughing at me, but that's ok. Laugh it up, fellas. I am prepared to go through all the beginner's steps. I just need pointing in the right direction. please :help:
Ok I am going to give you some good advice. Get a drill blank or something you know is straight that will fit in the chuck. Tighten it down put the dial indicator on it at the chuck and then out 1" and then out 2" or 3" does it get worse? I bet it does. Get a good carbide tipped tool. Take the chuck off of the spindle and take a skim cut off of the face. Then off of the shoulder only gonna take a couple thou off so that you get a continuous cut the whole way around. re mount the chuck and indicate the sucker back in. And Wa-laa now you have an accurate machine. As a side note make sure your gibs are snug so there is no play when you take the skim cuts. This will make your cut not be accurate. With this said you will only be as accurate as your least accurate component. Chuck, collet, tool post, gibs with slop, cross slide with slop. I have had a couple of these little lathes. From the box to a good machine it takes me about 3 hours to degrease, true up and mount to the bench. IMO time well spent.
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