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Manuka Jock
3rd August 2010, 10:09 PM
Gidday folks.
Down at our Guild we have a Nova 3000 headstock , a two horse motor and a variable speed unit .
Any and all ideas on the design , construction , materials , weight , anchorage etc for the building of a bluddy big dedicated bowl lathe will be appreciated.
Obviously all ideas will be considered , but only a few will be used.
There are no prizes for the winning ideas , but we will be thinking of ya when we play on our new toy :U

cheers ,
Jock ,
Otago Woodturners Guild ,
Dunedin , NZ

wheelinround
3rd August 2010, 10:20 PM
I feel a Hughie coming on he makes a mean bowl lathe Jock

Manuka Jock
3rd August 2010, 10:29 PM
That could be interesting Wheelin' .
Hughies a metalman as well as a woodie eh .

We have some 'aussie power poles' about 2.M long out in the yard too About 4 of them I think.
Forgot to mention that in the first post.

RETIRED
3rd August 2010, 10:32 PM
'aussie power poles' Victorian, South Australian, West Australian, Queensland or Tasmanian?:D

I am assuming you have "Stobies" from SA.

Manuka Jock
3rd August 2010, 10:37 PM
Its' all 'aussie hardwood' to us :U

We have a Brisbane man in our ranks , I'll ask him if he can id them :)

RETIRED
3rd August 2010, 10:43 PM
Wasn't sure whether they were wood or steel.

Sounds like timber ones. the Stobies are steel.

Manuka Jock
3rd August 2010, 10:53 PM
Wasn't sure whether they were wood or steel.

Sounds like timber ones. the Stobies are steel.

Yep, just plain tree trunks . No machining , just been debarked it seems .
We have them all over the country . NZ plantation pines have only been used in about the last 50 years.

You got our kauri , we got your 'hardwoods', for wharf timbers too

hughie
3rd August 2010, 11:00 PM
kiaora Jock,

this might help

http://www.woodworkforums.com/f8/diy-lathe-70958/

I use a welded construction as its the simplest to do with minimal machining. If you take your time it will come out square and true, certainly enough for wood turning.
Since this one I have another two on the drwg board, an up date of this one and another smaller one an update on the one below

http://www.woodworkforums.com/f8/home-made-lathe-53366/

here you go is the sort of thing you had in mind, a decent sized face plate :U

Manuka Jock
3rd August 2010, 11:34 PM
Tena koe Hughie ,
thanks , thats the ticket .
Some of our blokes come from the metal world , ( there was a huge railway workshop here in Dunedin , some of the older ones served their time there).
I'll run this stuff past then on Saturday

Part of the workshop floor is asphalt , so no problem casting a concrete found into it .

The faceplate won't be a problem , I think there is a a wheeling plate at the Settlers Museum , in the Wheelwrights shop :U

RETIRED
4th August 2010, 08:01 AM
Nice railway station there too.

Mass is what you are after with torsional strength.

The 3000 headstock is very robust but for big work it needs bracing.

When we turned big stuff on the 3000 we added a 8mm plate that was bolted to the stand and attached to the headstock via bolts through the casting.

It would not hurt to add a further strap from the top of the headstock angled to the frame as well.

A little trap to avoid is putting the headstock in the centre of the frame. You need access to the back of the work as well sometimes and there is nothing worse than having to try and work around a lump of concrete or steel.

Cliff Rogers
4th August 2010, 09:49 AM
...
Any and all ideas on the design , construction , materials , weight , anchorage etc for the building of a bluddy big dedicated bowl lathe will be appreciated.
Obviously all ideas will be considered , but only a few will be used....
I built mine on a piece of truck chassis on the end of a 14" diameter steam pipe from the scrap metal yard.
Pics here.
http://www.woodworkforums.com/f8/mother-faceplate-lathe-22821/#post223456

Bazza
4th August 2010, 11:54 AM
If you want a big bowl lathe have a look at this one


The Big Bowl (http://www.proserpinewoodturners.com/The_Big_Bowl.html)

Barry

Cliff Rogers
4th August 2010, 01:58 PM
It is a beauty isn't it, I have seen it working.
More pics on this page.
Turnout 2002 (http://www.proserpinewoodturners.com/Turnerout2002.html)

Tim the Timber Turner
4th August 2010, 02:07 PM
Victorian, South Australian, West Australian, Queensland or Tasmanian?:D

I am assuming you have "Stobies" from SA.

Turning them South Aussie Stobie poles sorts out the men from the boys:oo:

Cheers

Tim

Manuka Jock
4th August 2010, 04:19 PM
If you want a big bowl lathe have a look at this one


The Big Bowl (http://www.proserpinewoodturners.com/The_Big_Bowl.html)

Barry

Yeah , I wanted to steal that one , but the club were a bit weird about smashing a hole in the wall to get it in :p

Manuka Jock
4th August 2010, 04:23 PM
I built mine on a piece of truck chassis on the end of a 14" diameter steam pipe from the scrap metal yard.
Pics here.
http://www.woodworkforums.com/f8/mother-faceplate-lathe-22821/#post223456

Thats a good idea Cliff .
A flange both ends would be a help , in the bolting down too eh .
Thanks

Cliff Rogers
4th August 2010, 06:03 PM
Thats a good idea Cliff .
A flange both ends would be a help , in the bolting down too eh .
Thanks
Yup, I couldn't believe my luck when I found a piece about 4' long with a nice big flange on each end.

It does make the centre a bit high but I stand on a wooden duck board to use it.

Manuka Jock
4th August 2010, 06:31 PM
Yup, I couldn't believe my luck when I found a piece about 4' long with a nice big flange on each end.

It does make the centre a bit high but I stand on a wooden duck board to use it.
But you don't have to dig the pit quite so deep to do that real Big PLATTER :D

Cliff Rogers
4th August 2010, 11:15 PM
But you don't have to dig the pit quite so deep to do that real Big PLATTER :D
I can spin an 8footer if I move the duck board out of the way.

Manuka Jock
4th August 2010, 11:33 PM
great , can't wait to see the pics Cliff :U

Sawdust Maker
5th August 2010, 12:21 AM
I can spin an 8footer if I move the duck board out of the way.

to make a big plate for when a couple of mates drop overfor nibblies :D

wheelinround
5th August 2010, 09:43 AM
I'd like to see Cliff do one of the Indexed Bowls on that

Manuka Jock
5th August 2010, 09:58 AM
Or a spa pool :2tsup:

Cliff Rogers
5th August 2010, 05:45 PM
I'd like to see Cliff do one of the Indexed Bowls on that
No problems, it has a truck engine flywheel with starter motor ringgear around then edge... I can't remember how many teeth but it is something like 90 of them.