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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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#1
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Headstock/Tailstock Alignment
Keith Young wrote:
I find that my alignment is off just 1 to 1.5 milimeters Is that an acceptable error. Depends what you plan on doing with it. For turning spindles between centers it most likely won't matter. For drilling from the headtock it will be a problem. -- Derek Andrews, woodturner http://www.seafoamwoodturning.com Wedding Favors ~ Artisan Crafted Gifts ~ One-of-a-Kind Woodturning |
#2
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Keith; these lathes can be adjusted so the centers line up exactly, dead
on. Tell us which way your centers are out: up and/or down or front to back or a little of both. Accuracy of the center points of the Record lathes depends on the "flatness" (?) of the surface the bed is bolted to. One can move the alignment of the center points by shimming under the front or back corners of the cast iron end brackets(?). This has the effect of twisting the bed bars which will in turn bring the centers into alignment; or out of alignment depending which corners are shimmed. Good luck. Edward |
#3
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Hello Keith This only works if the ways are not flat and twisted now, by UNtwisting, you would make it flat and then you would be not out or exactly the same amount out over the whole length of the bed, if the bed is flat now and you are out of alignment than twisting the bed would make your alignment different all along the ways, the way I can show you in a very simple way, is to take a bold with a nut on it, now imagine that the thread is your ways, the nut your tailstock and the bold head your head stock, now move your tail stock (nut) back and fort and you will understand how your tailstock is aligned only at one point and will get out of alignment the moment you move it forwards or backwards, now the wood lathe is not a precision tool like a engine lathe, and you are wanting to have the centers lined up at lets say 4" apart then you might be able to do this like the suggestion, but I would recommend that you find out if your ways are twisted or not and rectify if needed and use bras shims to make the adjustment. Have fun and take care Leo Van Der Loo Jo-Anne & Edward Tabachek wrote: Keith; these lathes can be adjusted so the centers line up exactly, dead on. Tell us which way your centers are out: up and/or down or front to back or a little of both. Accuracy of the center points of the Record lathes depends on the "flatness" (?) of the surface the bed is bolted to. One can move the alignment of the center points by shimming under the front or back corners of the cast iron end brackets(?). This has the effect of twisting the bed bars which will in turn bring the centers into alignment; or out of alignment depending which corners are shimmed. Good luck. Edward |
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