Need a chuck idea to re-turn finished work.

[JDarvall]

Uno, how often a need sometimes arises where its ideal to stick something back on the lathe to refinish, eg. a ding or scratcher or redesign. And since the drive cuts have been removed to finish the ends you can't drive it with a regular spur drive anymore.

thinking I want a soft lined chuck of sorts that grips firmly on the work without damaging it, and maybe a skateboard wheel 3 point steady.

Trying to describe what I mean with just a picture of the rolling pin. If it was damaged around the middle what sort of chuck (ideally something I can make) would you use to grip around the handle ?

Thinking what be ideal instead of the steady is one of these kind of chucks at the drive and another on the live centre at the tail. (maybe a jam chuck on the tail) ??

appreciate any thoughts. Its a process I've been wanting for quite a while. This need has come up quite often.

ta .

[Terry V]

If I understand correctly what you want, one way is to use female cone centres at both ends. Sometimes I just use the end of the lathe spindle with a bit of padding (no centre fitted) to locate and drive the work. Then a homemade cone fitted over the live centre at the tailstock end. Depending on the shape you might get away with just pressure from the normal live centre in the tailstock via a small pad.

If using hollow cones the head and tail stocks must be aligned accurately to reduce marking of the work.

If you don't mind a small design change, you could drive it with the lathe spindle as above, with support from the tailstock in the usual way, and make the piece a fraction shorter to remove the tail centre mark.

Terry
My wooden bowls and vases (http://www.turnedwoodenbowls.com)

[QC Inspector]

You need to look for a tail centre that has a cone shaped cup that the handle will sit in. The headstock end can be duplicated with wood in a chuck or faceplate. Along these lines.

Nova Revolving Center - Woodturners Catalog - Woodworking tools and supplies specializing in woodturning. (http://www.woodturnerscatalog.com/store/Lathe_Accessories___Revolving_Centers___Nova_Revolving_Center___nova_center?Args=)

Oneway Revolving Center - Woodturners Catalog - Woodworking tools and supplies specializing in woodturning. (http://www.woodturnerscatalog.com/store/Lathe_Accessories___Revolving_Centers___Oneway_Revolving_Center___1way_revolv_center?Args=)

Deluxe Revolving Center Kit - Woodturners Catalog - Woodworking tools and supplies specializing in woodturning. (http://www.woodturnerscatalog.com/store/Lathe_Accessories___Revolving_Centers___Deluxe_Revolving_Center_Kit___dlx_revolv_kit?Args=)

Pete

[RETIRED]

What they said.

I have cones from 19mm to 300mm and when needed are very handy.

[joe greiner]

For a more substantial grip at the headstock, you might consider a custom chuck made from pvc pipe fittings. Vern (ttit) has made some for turning eggs. A forum search should find them. Basically, after mounting and turning true, you can cut radial slots in the wall and a pipe clamp to squeeze the work. If the ID of the fitting is slightly larger than the work (which is good anyway), you can wrap it with masking tape to reduce gripping damage. I've made these up to 4.5" (114mm) ID. And a 6-incher in development.

Amen to the tailstock cone.

Cheers,
Joe

[JDarvall]

thankyou kindly for the ideas. Got me thinking about all sorts of time consuming jigs now :roll::U.

I'll buy one of those tail cones mentioned, I think, and make a drive out of wood like that pvc idea, that clamps up the end with a pipe clamp.

thanks. much help.

[Sawdust Maker]

You need to look for a tail centre that has a cone shaped cup that the handle will sit in. The headstock end can be duplicated with wood in a chuck or faceplate. Along these lines.

Nova Revolving Center - Woodturners Catalog - Woodworking tools and supplies specializing in woodturning. (http://www.woodturnerscatalog.com/store/Lathe_Accessories___Revolving_Centers___Nova_Revolving_Center___nova_center?Args=)

Oneway Revolving Center - Woodturners Catalog - Woodworking tools and supplies specializing in woodturning. (http://www.woodturnerscatalog.com/store/Lathe_Accessories___Revolving_Centers___Oneway_Revolving_Center___1way_revolv_center?Args=)

Deluxe Revolving Center Kit - Woodturners Catalog - Woodworking tools and supplies specializing in woodturning. (http://www.woodturnerscatalog.com/store/Lathe_Accessories___Revolving_Centers___Deluxe_Revolving_Center_Kit___dlx_revolv_kit?Args=)

Pete


The last one is available from Jim, here (http://www.cws.au.com/shop/item/robert-sorby-revolving-centre-kit)

[Paul39]

thankyou kindly for the ideas. Got me thinking about all sorts of time consuming jigs now :roll::U.

I'll buy one of those tail cones mentioned, I think, and make a drive out of wood like that pvc idea, that clamps up the end with a pipe clamp.

thanks. much help.

Another way:

Chuck a piece of wood about twice the diameter of the handle and as long, drill slightly under size to the handle, then make a long bevel to grab the handle about half way.

For the tail end do the same and additionally turn the outside round, then reverse and make a hole to fit snugly over your live center.

[joe greiner]

... to fit snugly over your live center.
Before mounting on the live center, remove the center point to facilitate un-mounting with a knockout bar. DAMHIKT.:-

Cheers,
Joe