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+---- Thread: R 8 adapter (/thread-2397.html)
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R 8 adapter - doubleboost - 12-07-2014
Hi
Lads
I was given this boring head today
Any ideas on a R8 spindle / mandrel for it
I can always make one
The centre hole is 40 mill
![[Image: S1230012_zps1fcf5676.jpg]](http://s261.photobucket.com/user/john970s0/media/S1230012_zps1fcf5676.jpg.html)
![[Image: S1230011_zpscb80092e.jpg]](http://s261.photobucket.com/user/john970s0/media/S1230011_zpscb80092e.jpg.html)
![[Image: S1230013_zpsd064581f.jpg]](http://s261.photobucket.com/user/john970s0/media/S1230013_zpsd064581f.jpg.html)
![[Image: S1230010_zpsee76b665.jpg]](http://s261.photobucket.com/user/john970s0/media/S1230010_zpsee76b665.jpg.html)
![[Image: S1230008_zps2c1bcafe.jpg]](http://s261.photobucket.com/user/john970s0/media/S1230008_zps2c1bcafe.jpg.html)
Regards
John
RE: R 8 adapter - awemawson - 12-07-2014
John, I'd be tempted to buy one of the many R8 threaded adaptors available for boring heads, and just make a plate with the appropriate PCD holes drilled in it
http://www.rdgtools.co.uk/acatalog/BORING_HEAD_SHANKS.html
RE: R 8 adapter - dallen - 12-07-2014
like Awemawson said buy a threaded arbor and make a plate
RE: R 8 adapter - doubleboost - 12-07-2014
I have a spare R8 to a Jacobs taper I will modify that
It is a nice looking boring head
John
RE: R 8 adapter - awemawson - 12-07-2014
I hope it's one of the beefier Jacobs tapers then - that looks to be quite a chunky head !
RE: R 8 adapter - doubleboost - 12-07-2014
I will turn off the taper then ether thread it & screw it in.
Or press fit and weld .
Most likely both .
John
RE: R 8 adapter - Micktoon - 12-07-2014
Press fit , weld , bolt and rivet John , take no chances
Will make a good video topic too 
Cheers Mick.
RE: R 8 adapter - EdK - 12-07-2014
(12-07-2014, 05:42 PM)doubleboost Wrote: ...
It is a nice looking boring head
John
And big.
Ed
RE: R 8 adapter - krv3000 - 12-08-2014
nothing rong with a big one
RE: R 8 adapter - Micktoon - 12-08-2014
Well said Bob
