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Posted by Mark Rand on March 7, 2006, 7:04 pm
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>Guys, I am going to build another headstock for my wood lathe, one which
>will sit on the ways of the lathe in front of the normal headstock. The aux
>headstock will be orientated at 45 degrees to the ways so I can hollow
>pieces without having to lean way over the ways of the lathe. I would like
>to drive the aux headstock from the normal headstock with a short
>driveshaft, but I can't figure out an elegant way to turn the required 45
>degrees. 90 degree gearboxes are very common, but I haven't found one for
>45 degrees as yet. Shaft size should be about 1" diameter. Hp is 2, rpm
>range from 60 to 2100 rpm.
>
>Any suggestions?
>
>TIA,
>James Johnson
Can you rotate the headstock by 180 degrees instead and the use an auxiliary
tool rest bolted to the bench?
I had assumed that all wood lathes had a double ended headstock.
regards
Mark Rand
RTFM
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Posted by JRJohnson on March 7, 2006, 7:44 pm
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Ned had a good suggestion about using 2 90 degree gearboxes, except that I
would have to drive the aux headstock with a pulley/belt setup to maintain
the spindle height.
Leo suggested that I buy a chinese lathe & use the headstock. Ok, except
the chinese headstocks are way too small. My lathe has a 24" swing, with 1
1/2" threads on the end of the spindle. Chinese lathes have 1x8 threads.
My tool rest banjo is plenty long to support a tool rest for the aux
headstock.
Pete suggested a front wheel drive axle, with constant velocity joints.
Probably that is what I will do. Only problem is that it makes the aux
headstock project further away from the ways than I would prefer. But still
probably the best idea.
Bill Noble suggested I look at the woodturning NG. I have been turning
since 1963, am a founding member of the AAW, have built 3 large lathes,
demonstrated at 3 National Symposiums and all the Texas Symposiums (13 so
far) and I find the Woodturning NG entertaining sometimes, but not very
useful.
Mark asked if I could rotate the headstock. Nope, thus the desire for the
aux headstock. And in my case, the back of the spindle has the pulleys from
the drive mechanism, so in effect it is double-ended, but I cannot mount
wood to the other end of the spindle.
For those who are curious to see the lathe, go to www.hillcountryturners.org
, click on 'members web sites', then on 'James R. Johnson' and finally on
'see lathe here'.
Thanks for all who took the time to respond.
Regards, James R. Johnson
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>will sit on the ways of the lathe in front of the normal headstock. The aux
>headstock will be orientated at 45 degrees to the ways so I can hollow
>pieces without having to lean way over the ways of the lathe. I would like
>to drive the aux headstock from the normal headstock with a short
>driveshaft, but I can't figure out an elegant way to turn the required 45
>degrees. 90 degree gearboxes are very common, but I haven't found one for
>45 degrees as yet. Shaft size should be about 1" diameter. Hp is 2, rpm
>range from 60 to 2100 rpm.
>
>Any suggestions?
>
>TIA,
>James Johnson