What is running out? Headstock, or tailstock? I can't tell from the video. What I can tell is the entire center or arbor is running out. Make sure taper and center/arbor is clean, if it is in a taper. Need more info.
If so,these are poor headstock runout due to incorrect headstock bearings from the factory ie they're normal bearings and should be changed to tapered bearings.
Could be simple like your live center is bent or worn at chucking area. Maybe not enough live center shank in chuck. could be chuck jaws or screw is worn. Can try putting a piece of
cold roll or tool steel in chuck and check run out with mic. Just a try, Put live center in chuck and spin-Hit center tip towards chuck with plastic or lead hammer somes times this
will straighten center if chuck is loose or worn. This is for a 3 jaw self centering chuck
Are you sure its not just a bent barrel on your tailstock ? I cant see what way round your camera is. Is the chuck to the left or right in the frame ?
Just mount a 3 jaw and grip some piece of junk stock. Turn a 60 degree centre on the chucked piece and use a drive dog to drive your actual workpiece.
Bent work holding...IE: Collet nose, collet or chuck jaws. put soft jaw in the chuck, bore them true and mount a part to see. take the part in and out to see if it repeats.
you may just need a new chuck. If it's a main bearing. it's a 2 day job.
If your lathe is made in china this is par for the course. Workmanship and quality take a back seat to price. It wouldn't be out of the ordinary if the bearings are full of grit/rust and turned surfaces "polished" with a freaking die grinder. Try putting an indicator on the spindle bore. Doing this will tell you if the problem is with the spindle or if the center is the issue. Or you can get yourself a deadblow hammer and give a couple love taps in the right spot to make things run true.
1st make sure the Morris Taper in the head stock is clean and free of burs, also check same on dead center; use a stone to remove any burs by hand not a power tool. clean again to remove grit and replace dead center back into head stock. if you still have wiggle set up the lathe to recut the face of the dead center in place using the compound rest set at 30 d for a 60d included angle. after you do this remove and replace dead center in headstock, if it wiggles headstock is bent or missbored
maybe it's the fact that he's holding a TAPERED dead center in the chuck. it's hard as fuck to hold something tapered completely straight...
HeadShot360IN 35 minutes ago
What is running out? Headstock, or tailstock? I can't tell from the video. What I can tell is the entire center or arbor is running out. Make sure taper and center/arbor is clean, if it is in a taper. Need more info.
Nasedo375 4 days ago
bore you jaws out
cocksparrows 1 week ago
Hi
Rather a bit late for this but......
Is the lathe a Sieg model or clone?
If so,these are poor headstock runout due to incorrect headstock bearings from the factory ie they're normal bearings and should be changed to tapered bearings.
This will reduce the runout considerably.
steadyeddieism 1 week ago
its like screw driver when use
lennul1 1 month ago
@lennul1
Could be simple like your live center is bent or worn at chucking area. Maybe not enough live center shank in chuck. could be chuck jaws or screw is worn. Can try putting a piece of
cold roll or tool steel in chuck and check run out with mic. Just a try, Put live center in chuck and spin-Hit center tip towards chuck with plastic or lead hammer somes times this
will straighten center if chuck is loose or worn. This is for a 3 jaw self centering chuck
rikozmine 3 weeks ago
Are you sure its not just a bent barrel on your tailstock ? I cant see what way round your camera is. Is the chuck to the left or right in the frame ?
ScotsFurian 1 month ago
what kind of spur drive is that......
duff835 2 months ago
Just mount a 3 jaw and grip some piece of junk stock. Turn a 60 degree centre on the chucked piece and use a drive dog to drive your actual workpiece.
powershop1903 2 months ago
Bent work holding...IE: Collet nose, collet or chuck jaws. put soft jaw in the chuck, bore them true and mount a part to see. take the part in and out to see if it repeats.
you may just need a new chuck. If it's a main bearing. it's a 2 day job.
par4par72 4 months ago
you get what you pay for.
MWL4466 6 months ago
If not already equiped in the head stock, use tapered bearings, if equiped check them
r0ckabillyred 7 months ago
Oh that looks nasty!! Is it a cheap foreign machine?
Metalunique 9 months ago
well you could alway use it for stuff that doesn't have to be precision quality
honeybunchickens 11 months ago
its not concentric enough...
rafeck 1 year ago
looks like a flat spot in the bearing, our minilathe we upgraded to tapered bearings, problem solved...
littlemachineshop has the upgrade kits but you have to turn the spacer to work. hope that helps.
pha3r0 1 year ago
If your lathe is made in china this is par for the course. Workmanship and quality take a back seat to price. It wouldn't be out of the ordinary if the bearings are full of grit/rust and turned surfaces "polished" with a freaking die grinder. Try putting an indicator on the spindle bore. Doing this will tell you if the problem is with the spindle or if the center is the issue. Or you can get yourself a deadblow hammer and give a couple love taps in the right spot to make things run true.
alderaforall 1 year ago
1st make sure the Morris Taper in the head stock is clean and free of burs, also check same on dead center; use a stone to remove any burs by hand not a power tool. clean again to remove grit and replace dead center back into head stock. if you still have wiggle set up the lathe to recut the face of the dead center in place using the compound rest set at 30 d for a 60d included angle. after you do this remove and replace dead center in headstock, if it wiggles headstock is bent or missbored
stevenacarter77 1 year ago
pprobley loose shaft tighten up the back nuts and should fix it up ,
KevinMillard68 2 years ago
looks like a dead bearing to me, or a bent shaft
turtlemann14 2 years ago
Yep... you bet! You've got a problem that need looking into bro! Can youshow the head-stock? Maybe we can help!
latheworks 3 years ago