From: Snag_one@msn.com   
      
   On 9/26/2024 6:25 AM, Jim Wilkins wrote:   
   > "Snag"  wrote in message news:vd291u$3sffa$1@dont-email.me...   
   >   
   >    I've picked up some more indexable tooling with 10mm shanks and I'm   
   > going to need more blocks . I'm looking at some A36 and some 1018 cold   
   > drawn, both reasonably priced . Does either have an advantage over the   
   > other ?   
   > Snag   
   >   
   > -----------------------------------------   
   >   
   > I think A36 implies hot rolled. If the one you pick has distortion or   
   > surface finish problems you could anneal it, which has cured mystery   
   > metal for me.   
   >   
   > Shims that raise the 10mm holders to the same cutting edge height as   
   > your other tooling might be simpler.   
      
      You're right , the A36 looks like hot rolled . I think I'll get the   
   1018 for this job . It's a couple of bucks more than the A36 but that's   
   no big deal . As far as tool height , my current tooling is 5/16" and I   
   have enough room to drop the holders for the new stuff to centerline .   
   I'll just shave the top ledge a little thinner .   
      
   >   
   > The other day I ran across a watchmakers lathe for sale and have been   
   > considering whether or not to buy it. After reading accounts of using   
   > one I don't think I need to learn precision turning with hand held   
   > gravers, and my Sears AA has the speed for polishing and drilling small   
   > deep holes. I turned extra long #0-80 fillister head screws on my 10"   
   > South Bend and probably won't ever need something that small again.   
   > Perhaps the price of the lathe would be more usefully spent on a few 5C   
   > metric collets.   
   >   
   > Opinions?   
      
      Sounds like you've already got tools to do what the watchmakers lathe   
   will do ...   
      
   >   
   > The watch lathe glue chuck used melted flake shellac to hold an odd   
   > shaped part that was centered by the tailstock spindle. Alcohol removes   
   > it when done, and it might be good for holding granite for polishing.   
   >   
   > jsw   
      
      Must be for really small pieces ... I wouldn't trust any kind of glue   
   to hold stuff the size of what I'm usually turning .   
   --   
   Snag   
   Voting for Kamabla after Biden   
   is like changing your shirt because   
   you shit your pants .   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)