Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: stoneaxe

Page 1 of 42 1 2 3 4

Search: Search took 0.02 seconds.

  1. [/B]I am thinking the threads and necessary...

    [/B]I am thinking the threads and necessary clearance probably have the most play of anything on this effort, so a very slight discrepancy would be OK.
    Thanks for the reply! Would most work like...
  2. Update on the Van Norman #12 collet holder. ...

    Update on the Van Norman #12 collet holder.

    The completed holder is holding under .0008" TIR, 4 1/4" from the mill spindle face, at the end of a 7/16" x 2" endmill. Not bad for a machine born...
  3. Making an ER collet holder for VN 12 spindle. How close is close enough?

    The collet holder I am making is to fit an old VN C taper- The mill spindle has been ground and is within .0002" runout.

    The toolholder has an accurate taper and the 8 degree ER recess was bored...
  4. Replies
    12
    Views
    686

    Only one I ever made was curly Koa... back when...

    Only one I ever made was curly Koa... back when it was cheap..
    Houses a Mit indicator, stand, and arms. no rust there, I used it for aligning shafts on boats.
  5. Been doing a lot of reading about centers- the...

    Been doing a lot of reading about centers- the people who do it for living say they need to be ground under load-
  6. And just like that, a use for the versa-turn pops...

    And just like that, a use for the versa-turn pops up- making an ER collet holder, doing all the boring on the mill, it needs to go back to the lathe for threading- but there is a 25mm hole in the...
  7. ^^Yep- a really good machinist suggested that to...

    ^^Yep- a really good machinist suggested that to me some time ago, and I forgot.

    Plan B- in the Mill- so far so good- put the toolholder in the mill, (it already had the taper, keyway, drawbar...
  8. Having set the job up in the four jaw and a...

    Having set the job up in the four jaw and a center, I was surprised to see .005 runout in the free end, after I pulled the center out. Stuck the dead center in there, and the runout was a .001 or so....
  9. Royal versaturn center? Good general purpose item?

    The cheap live center is on a ballistic arc to the dumpster- .0005" runout.

    I am going to get a good Royal or Bison or something like that.

    The Royal versaturn looks like a useful tool, in...
  10. Sent you a PM- is this still available?

    Sent you a PM- is this still available?
  11. Some basics- the lathe is a pretty decent Taiwan...

    Some basics- the lathe is a pretty decent Taiwan 1340, in excellent condition. Not great, but not a total POS. About like a Sharp 1340.

    The ways are not worn, and I leveled it a few years...
  12. That is a good plan. I will get the tailstock on...

    That is a good plan. I will get the tailstock on line and use a dead center for now, till I get a better live center.
  13. chasing accuracy and trouble shooting unwanted taper on manual lathe

    I am making a toolholder for a mill, on the lathe. ER 25.

    The 5" long part has a .875" shank with a 1.65" dia. x 2" long end for the ER collet pocket.

    The end of the shank is gripped in a four...
  14. Replies
    17
    Views
    1,110

    UHMW poly works well.

    UHMW poly works well.
  15. Replies
    22
    Views
    1,291

    Hmm. Suppose this would work on a jacobs taper...

    Hmm. Suppose this would work on a jacobs taper stuck in a drill chuck? Stick the Morse taper in the solution to cool the shank and then whack it?
  16. Replies
    16
    Views
    725

    This comment is a mystery to me. Exactly how does...

    This comment is a mystery to me. Exactly how does it bear on the conversation?
  17. Replies
    16
    Views
    725

    Got it. Thank you all. :)

    Got it. Thank you all.
    :)
  18. Replies
    16
    Views
    725

    locating holes and tool center

    Making an end mill holder-- it was first bored in place in the machine spindle,(on horizontal axis ) then reamed to size with a fixed reamer held in the table vise.

    To establish the reamer on...
  19. Replies
    23
    Views
    1,688

    shipping drives me nuts. We ship a lot of heavy...

    shipping drives me nuts. We ship a lot of heavy wall tubes. UPS has a tube charge. They did not a few years ago, but apparently tubes are too hard to handle now and they have to be hand carried. For...
  20. Well, it worked fine. Was a bit worried about...

    Well, it worked fine. Was a bit worried about chatter, so ran the spindle real slow at 130 rpm, flooded the drilled hole with lube and wrapped a 3" piece of 1/8" lead solder around the reamer shank...
  21. 200,000 miles is one half billion revolutions at...

    200,000 miles is one half billion revolutions at 2500 rpm @ 60 mph.
    Modern cars do pretty good.
  22. Wear kevlar pants. Try a motorcycle gear shop.

    Wear kevlar pants. Try a motorcycle gear shop.
  23. Replies
    1
    Views
    299

    Kakashi, PM me with your mailing address. I...

    Kakashi,
    PM me with your mailing address. I have a spare set of VN C collets- 1/8" to 5/8" , most are ok, the 5/8" is really rough, but the 3/8" is in very good shape. They will all need cleanup.
  24. I would like .0005" over 7/16", so a 7/16" shank...

    I would like .0005" over 7/16", so a 7/16" shank tool can slip in. The reamer is .438", exactly .0005" over. Maybe a .4375 reamer would be better? I was a bit concerned that if the hole is exactly...
  25. Vertical-horizontal type with the head flopped so...

    Vertical-horizontal type with the head flopped so the spindle is parallel with the table. So if the axis designation changes with the head movement, I am feeding in Z- in along the spindle bore. I...
Results 1 to 25 of 1030
Page 1 of 42 1 2 3 4