TRICK R8 Tooling - Page 2
Close
Login to Your Account
Page 2 of 2 FirstFirst 12
Results 21 to 33 of 33
  1. #21
    Join Date
    Dec 2003
    Location
    Palo Alto, CA USA
    Posts
    985
    Post Thanks / Like
    Likes (Given)
    61
    Likes (Received)
    298

    Default

    Quote Originally Posted by FlatBeltBob View Post
    Power drawbar , and a power feed on the knee are my favorites .
    I gave up on the kurt automatic that is supposed to raise & lower the drawbar . It just never worked reliably .
    Bob
    I'll second the power drawbar. Fast & easy, that's for sure. My Kurt has performed flawlessly for the six years I've used it. There's another power drawbar advantage seldom mentioned: for some of us, it requires a step stool to reach the drawbar comfortably - talk about a time sink!

  2. #22
    Join Date
    Oct 2006
    Location
    williamsburg va
    Posts
    7,883
    Post Thanks / Like
    Likes (Given)
    839
    Likes (Received)
    1753

    Default

    I just bought an APT boring outfit from a member here. I also heartily agree with taking out the little PITS key. It will sometimes go a little sideways into a collet,and there's hell to pay getting the collet out. I got an old right angle attachment stuck in my mill at work. Had a terrible time getting it loose,and took the key out after that. Never a problem with slipping. Keep the r8 and hole dry.

  3. #23
    Join Date
    Jan 2008
    Location
    spokane
    Posts
    888
    Post Thanks / Like
    Likes (Given)
    5
    Likes (Received)
    88

    Default

    A number years ago bought a Royal quick change R8 & 1 Jacobs taper holder. Then made another 10 or so holders out from scrap hydraulic cylinder rods' It's OK for center drilling, pilot drill, tap drill, tap, counter bore/sink on flange type work. End milling nothing to brag about. I'm glad I bought mine when they were only a couple hundred $. Now it's 5 bills just to get started

  4. #24
    Join Date
    Feb 2010
    Location
    somewhere in Illinois
    Posts
    1,160
    Post Thanks / Like
    Likes (Given)
    139
    Likes (Received)
    313

    Default

    Tormach uses a collet system which I find easy and repeatable.

  5. Likes Toolznthings liked this post
  6. #25
    Join Date
    Apr 2008
    Location
    San Francisco, CA
    Posts
    524
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    89

    Default

    Quote Originally Posted by FlatBeltBob View Post
    Power drawbar , and a power feed on the knee are my favorites .
    I gave up on the kurt automatic that is supposed to raise & lower the drawbar . It just never worked reliably . I use the Aussie manual plunge air ratchet .
    My universal "fits all" knee feed , only took 12 hours of making custom adapters , but in the end , is well worth it . I can zip up or down and limit the need to extend the quill .
    If this tiawan crap unit burns out I will spend the extra for a SERVO unit so I can have a power feed knee for the longer boring jobs .

    I would love to have one of the vertical shaper heads . There are a few jobs that could have really used this unit .
    Bob
    Something that always bothered me about this: On the Bridgeport mills we have here at the university (some with very low hours in department shops) it isn't uncommon to get a serious droop in the knee when unlocked. An indicator held in the spindle while the knee lock is snugged will often show 0.002 of movement in the y-direction and sometimes even a similar amount in the x-direction.

    For this reason I've taken to boring with the quill lock lightly engaged using the quill feed. I'd love to have the granularity and controllability of the knee, but have nightmares about non-orthagonal bores.

    Am I crazy or does anybody else mill/bore exclusively with the knee locked?

    Henry Wettersten

  7. #26
    Join Date
    Apr 2021
    Country
    UNITED STATES
    State/Province
    Maryland
    Posts
    1
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Default

    Side request- if anyone has any parts for a Ultron Snap Change (drawbar especially) please let me know. We use these in our production shop and are having a tough time finding replacement parts.

  8. #27
    Join Date
    Mar 2005
    Country
    UNITED STATES
    State/Province
    Indiana
    Posts
    5,876
    Post Thanks / Like
    Likes (Given)
    1999
    Likes (Received)
    1944

    Default

    11 years go by and nobody told poor Henry to adjust his knee gib? Man, you guys are slipping.

  9. Likes comstockfriend liked this post
  10. #28
    Join Date
    Mar 2017
    Country
    LATVIA
    Posts
    758
    Post Thanks / Like
    Likes (Given)
    210
    Likes (Received)
    443

    Default

    I wish I had a gib to adjust in my knee, one of them has started making noises and doesn't feel all tight after 42 years of regular usage...

  11. Likes eKretz, Bluejeep, Limy Sami liked this post
  12. #29
    Join Date
    Sep 2005
    Location
    Northern California
    Posts
    1,046
    Post Thanks / Like
    Likes (Given)
    4
    Likes (Received)
    168

    Default

    I worked for a guy once that made his own R8 holders. An old German and the fastest machinist I've ever seen, Ex instructor at San Francisco State, teaching machine tool technology and running their mechanical shop.

    The draw bar was longer than normal and had a running bushing that fit the spindle. The R8's were amputated in form and made from "stressproof" with less than an inch of extension behind the taper. The mill an Induma knee mill had a pneumatic draw bar that was the guts of a butterfly wrench and some relay logic. As far as I know not commercial in the traditional sense. I believe there were less than 50 sets and conversions made all went to shops in central CA; acquaintances and ex students.

    The fastest manual tool change system I ever personally ran was a factory feature on a Tree Mill. The tool holders were cylindrical, the double angle master collet, locked and unlocked/ejecting with the quill feed lever. Capacity as I recall was 1"

  13. #30
    Join Date
    Jan 2007
    Location
    s w NH
    Posts
    346
    Post Thanks / Like
    Likes (Given)
    251
    Likes (Received)
    122

    Default

    Quote Originally Posted by clashmin View Post
    Side request- if anyone has any parts for a Ultron Snap Change (drawbar especially) please let me know. We use these in our production shop and are having a tough time finding replacement parts.
    email me [email protected] rather than rsvping this forum. thanks

  14. #31
    Join Date
    Sep 2011
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    18,961
    Post Thanks / Like
    Likes (Given)
    7561
    Likes (Received)
    11654

    Default

    Quote Originally Posted by gbent View Post
    The best R8 trick I've seen is to take the spindle out and install an Erickson Quick Change #30 spindle.
    Only on mills where there isn't room for 40-taper!

    "Are ATE" refers to what happens to tooling as attempts to trust a B&S 7 DOWNGRADE, yah?


  15. #32
    Join Date
    Sep 2011
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    18,961
    Post Thanks / Like
    Likes (Given)
    7561
    Likes (Received)
    11654

    Default

    Quote Originally Posted by eKretz View Post
    11 years go by and nobody told poor Henry to adjust his knee gib? Man, you guys are slipping.
    You didn't notice?

    It was only a BirdPort.

    WE aren't the one s "slipping".

    BeePee has been doin' that ever since it grew itself an ass of its own and sneaked away from just one more add-on head for a milling-machine to become a stabiity-impaired traveling circus.

  16. #33
    Join Date
    Mar 2005
    Country
    UNITED STATES
    State/Province
    Indiana
    Posts
    5,876
    Post Thanks / Like
    Likes (Given)
    1999
    Likes (Received)
    1944

    Default

    Quote Originally Posted by thermite View Post
    You didn't notice?

    It was only a BirdPort.

    WE aren't the one s "slipping".

    BeePee has been doin' that ever since it grew itself an ass of its own and sneaked away from just one more add-on head for a milling-machine to become a stabiity-impaired traveling circus.
    Eleven years ago I wasn't in any shape to notice much of anything. I was in bad shape with my back (failed back surgery, awful chronic pain) and probably had depression, didn't go to any shrink. Did a lot of sleeping and wondering about whether to keep on going. Didn't do much logging in here for a long period. Got a little better mentally and physically and came out the other side though. Now I just put my head down and keep on trucking the best I can. So yeah, when Henry was posting that I wasn't in a position to notice.


Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •