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Raising Tailstock ideas?

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Raising Tailstock ideas?

#1

Raising Tailstock ideas?

Ed Kelle

>I've figured out that part of the problems I have been having are due to a vary small difference in the height between the headstock and tailstock. The tailstock center point is slightly lower, very small amount (maybe less than 64th of an inch) but I guess it is enough to cause some issues. even after I have a piece mounted in the chuck, sometimes I bring up the tailstock for additional support, which seems to throw a slight wobble in it due to the lower height. So them when I remove it after "truing up" the wobble, it will now return since it is not supported slightly lower. Yes this showed up when I put my drill chuck on the tailstock, and drilled a hole, not a big deal, but I think it will raise more problems when I rechuck bowls using the tailstock for support.

Any ideas on how to raise up the tailstock slightly?

Re: Raising Tailstock ideas?

#2

Re: Raising Tailstock ideas?

John Lucas

>Ed

Check your headstock as well as tailstock. Either one may simply be canted or tilted a little with debri between the mating surfaces.

The only way to really know would be to put a micrometer on the tailstock spindle and headstock spindle and make sure they are parallel to the bed.

If they are parallel to the bed but different heights then you need to raise or lower one of them.

If they are tilted this can cause the point to be low or high but you may be able to either shim or file off one are to tilt them back into alignment.

Re: Raising Tailstock ideas?

#3

Re: Raising Tailstock ideas?

Larry in Lima

>Well... I'd start with doing everything you can to make sure that they really are different, and something else isn't "out of whack..".

After that, I guess you could use a thin brass shim under the tailstock, or you could even take a "fuzz" off of the bottom of the headstock. I"d say whatever is the most solid. Are you sure that maybe there isn't a rough spot on a casting, or something like that? Even a bad / loose bearing can do some weird stuff.

Food for thought - Larry

Re: Raising Tailstock ideas?

#4

Re: Raising Tailstock ideas?

Ed Kelle

>Thanks John, I am going to see if I can borrow a micrometer from a friend to check it all out. Seems like a small difference but I guess enough to cause things to go out of whack

Re: Raising Tailstock ideas?

#5

Re: Raising Tailstock ideas?

Ed Kelle

>Thanks Larry, I am going to look at the underside of the tailstock tonight. I'd say it is not a headstock problem just because this is the second headstock I've had (due to motor/bearing/shaft issues) and if I recall, it had this problem before. I am hoping that it is indeed just a rough spot on the tailstock tipping it forward a bit. If not, I think I might try a few layers of packing tape on the bottom of the tailstock, and hope it still slides.

Re: Raising Tailstock ideas?

#6

Re: Raising Tailstock ideas?

Don Henthorn

>The latest issue of The American Woodturner has some pointers you should consider.

Re: Raising Tailstock ideas?

#7

Re: Raising Tailstock ideas?

Ed Kelle

>Ah cool, I am still waiting for my issue to arrive. Hopefully in the next day or so. Thanks

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