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I am far from expert on this kind of stuff, but those "steps" at 5-8 oclock look like incremental stress failures to me... the upgrafe just finishing it off

I think we are all utterly dependent on technology, even us old guys. The tech we rely on was "high tech, "needs a slide rule, cant he do it in his head?" to the old boys when we were young... & goes back to "look at him using a pointed stick, why cant he just use a club like everyone else?" ;)

given that teh chuck (and lathe) are older than I am..... >:( shame really as there is no visible wear to the jaw faces.... my guess is by the time I am equipped to grind it it would be cheaper to replace

jaws are 2" long...on faces ;) have to give is some thought

with ground rod in chuck, aprox 1-1.5" jaw 1 tight along length jaw 2: 0.15mm, 20mm in, 0.3 at tip jaw 3: 0.15mm, 15mm in grinding not really an option... no toolpost grinder. mess with it or replace it?

disasemble & clean recently.... looks to be worn across most of its range... nevere "worked" at less than 1"

Decided it was time to investigate a few niggles I have been having... generally the front 1/2" of the chuck jaw on the 3 jaw is not touching the work.... this is a problem i think? ;) doubly so given the gap is diferent at each jaw. solution? chuck is old.. pratt on L0 taper. jaws & body...

This weekend.... just checked my diary ::) anyone going?

rip guy as to loving apple... the iphone & itunes are the biggest pile of **** it has been my misfortune to get suckered into buying...will never happen again

that article is dated 2008 ;)

thanks thats great what material?... ie grade of steel? ( not got any 2" so will have to buy & may as well buy something suitable as not)

cost & flexibility Tin... 5c... one size fits one size & relatively ££££ ER one size fits a small range, readily available & fairly cheap, also only need one collet set for mill (when it happens) Appreciate that it is potentially "less accurate" but you have to live within your limitations...

bit ot any suggestions where to get an er32 on a MT5? or anyone care to make me one?

hard to believe it is ten years, sometimes it seems like only yesterday.

which is a bit unfair... they are only meant to be for a limited accuracy, and therefore limited application... end of the day even a high end micrometer is only "very near" if working in angstrom units. If a part needs to be +-1/16 even a "cheap" mic is a bit overkill ;).

try a right hand parting tool, leaves teh back of the parted piece "good" & no clean up, might need to face the blank again tho.

the composition & structure of the metal changes quite a bit in the HAZ, you may be able to bring it back aif you can heat & cool very slowly, but probably less work to either remake or take more time machining

starret, moore & wright or eclipse all do decent tap holders cheap ones are just crap

2x 60w bulbs? ;D

energy conservation needs no other argument than we have finite resources & need to make the best possible use of them we can. This does not lead to an either/or situation, it leads to what is the most efficient system we can devise, that system looking at total cost of ownership, from inception...