Fit Versachuck Backplate onto Chuck.

[paulkane1]

Has anyone on this Forum ever tried to convert a Ruthlands XT700 (1inch x8TPI) Chuck,by,Screwing or Welding or Epoxy Gluing ,it onto a Verschuck Backplate,with the 11/2 inch x6TPI Threading ,to fit a Union Short/Bed Lathe!I don't think Screwing is a option,(I don't have Verachuck Backplate in front of me),I was wondering is it a option,to get me a chuck to fit my lathe o,thus saving money,All help would be appreciated.

Kindly Paul

 

[CHJ]

None starter, ISO backplates are designed for ISO backed chucks with their alignment registers, (99% of metal turning chucks and one or two wood orientated chucks)

Very few Branded 'wood lathe' chucks are engineered to a sensible standard, nearly all brands are intent on trying to tie you into their specific source for spares and replacements and due to the various espoused design improvements have very little material left in the rear face that would allow sensible or cost effective adaptation.


A chuck can take very high loads in use, it is a vital component in the safety chain, only a well engineered adaptation by someone with the knowledge to appreciate the forces and loads involved should attempt such for their own and others safety.

ISO back plates.

 

[chipmunk]

+1 for Chas' comments.

At the very least you could end up with lots of run-out and at very worst... Probably not worth going there :-&

Have you contacted flh801978 about his adaptors on the other thread?
If he can make you one at reasonable cost it would seem to be your best bet TBH.

Jon

 

[flh801978]

Whats a reasonable cost?
I make these to order
theres a lot of work and a lot of precision needed
For an external adapter they are £40 plus post
internals less

Ian

 

[marcros]

None starter, ISO backplates are designed for ISO backed chucks with their alignment registers, (99% of metal turning chucks and one or two wood orientated chucks)

Very few Branded 'wood lathe' chucks are engineered to a sensible standard, nearly all brands are intent on trying to tie you into their specific source for spares and replacements and due to the various espoused design improvements have very little material left in the rear face that would allow sensible or cost effective adaptation.


A chuck can take very high loads in use, it is a vital component in the safety chain, only a well engineered adaptation by someone with the knowledge to appreciate the forces and loads involved should attempt such for their own and others safety.

ISO back plates.

Chas,

is fitting an ISO chuck to an ISO backplate as simple as just bolting the two together, or what is involved?

Mark

 

[chipmunk]

Whats a reasonable cost?

No offence intended - I know what's involved but "reasonable cost" is anything that's acceptable to both buyer and seller IMHO

...and I did remind him of your offer.

Jon

 

[CHJ]

[.
Chas,

is fitting an ISO chuck to an ISO backplate as simple as just bolting the two together, or what is involved?

Mark

Yes, just three socket headed bolts.
And for wood turning work more than accurate enough. I quite often swap them on my Axminster precision or Vesa chuck to suit a different spindle.

For precision metal turning it may be needed to take up any slack in the register a few thou. with the aid of a dial indicator before final tightenig to achieve best alignment, say within one or two thou.

On some machines where spindle register or backplate is not as absolutely true as you would like you mount the backplate on the lathe and re-turn the register in situe to precisely fit the chuck to achieve the maximum precision. There can be a need to do this with some cheaper chucks and backplates that have a little too much clearance for precision alignment. (never had one that would not be good enough for a wood chuck.)

 

[marcros]

thanks. I am eyeing up a metal lathe and may need to do this.