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- Apr 30, 2015
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- 11,132
How much taper are you getting over what length? 0.005 does seem high. I would call Matt and see what he says. Hopefully adjusting the headstock won't affect the warranty
mark
mark
When I cut the two ring test bar it was .005” tapered, should the head stock be adjusted? The lathe is level in all directions by a 12” Sterrett Presion level on the way flats on 123 blocks. The head stock is factory set as of now.
Thanks.
CH
I had the exact same issue on my new 1340gt, .005" taper over 5 ". used a 2" 12L14 test bar stuck out 10".Thank you all for you well wishes, it means a lot. Ray thank you for your sujestion I was lucky in that my ER Doctor just happendto have had that and they checked me for it. So Im good to go there. They said my cause was most likley calcium crystals in the iner ear canal they get loose and bounce around in it and mess up your balance and cause exstreme dizziness. They think the crystals will resolve and thing will get back to normal. Just don’t know when.
Now for the PM-1236t content, before all this happened, I measured ~.0015” depending how big a truck was going by. When I cut the two ring test bar it was .005” tapered, should the head stock be adjusted? The lathe is level in all directions by a 12” Sterrett Presion level on the way flats on 123 blocks. The head stock is factory set as of now.
Thanks.
CH
Thanks Jim that is one of the exercises I’m doing now. My insurance is covering phisical/ocupationel therapy.You may find this helpful. Epley Maneuver, treatment for benign paroxysmal positional vertigo https://www.medicalnewstoday.com/articles/319171.php
About 20 years ago I worked with Dr. Epley on a machine that automatically moved the patient through the proper positions to move the crystals into a neutral area. The machine looked like something for training NASA astronauts. It actually worked well with a very good success rate. Dr. Epley passed away a number of years ago, and I have no idea what happened to the machine.
Best of luck.
Hi MarkHow much taper are you getting over what length? 0.005 does seem high. I would call Matt and see what he says. Hopefully adjusting the headstock won't affect the warranty
mark
PacificaI had the exact same issue on my new 1340gt, .005" taper over 5 ". used a 2" 12L14 test bar stuck out 10".
I knew the TIR in spindle was well under .0001". Lathe was leveled, bed was under .001" variance in height over 30".
What was left except the headstock!
Spent 4 hours adjusting headstock and taper is now less than .0001" over 5". It isn't real hard to do, just tedious.
Consider replacing the headstock cap screws with holo-krome or unbrako class 3A cap screws.
Possible they come out of factory like that now. I know it is a factory error because the tailstock is now 1/8" left of center when aligned with the spindle.