What's the Seceret to Long Series End Mills? - Page 3
Close
Login to Your Account
Page 3 of 3 FirstFirst 123
Results 41 to 52 of 52
  1. #41
    Join Date
    Nov 2005
    Country
    UNITED STATES
    State/Province
    Illinois
    Posts
    2,097
    Post Thanks / Like
    Likes (Given)
    216
    Likes (Received)
    1758

    Default

    Smallshop.
    I am in the same boat. I am not as big as J&L or MSC so I need to choose wisely what endmills I have made for me and what I stock. I wish I can stock these necked cutters in variable flute and standard flute. Maybe in the near future I can, but for now I need to decide on one style. I am hoping to get some more feedback today from you guys. Just an fyi....

    solid carbide TIALN coated 4 flute
    1/2 X .484 shank X 1.0 flute X 5.0 total length variable flute with corner radius $65.80
    5/8 X .593 shank X 1.25 flute X 5.0 total length variable flute with corner radius $96.40
    3/4 X .734 shank X 1.5 flute X 6.0 total length variable flute with corner radius $138.00
    1.0 X .968 shank X 1.5 flute X6.0 total length variable flute with corner radius $188.00

  2. #42
    Join Date
    Mar 2005
    Location
    Silicon Valley, California... + other states & several countries on 3 continents
    Posts
    2,100
    Post Thanks / Like
    Likes (Given)
    2
    Likes (Received)
    42

    Default

    Do you use a simple formula to figure amount to leave in relation to total cut depth and amount of flute length? Or do you use a specific angle to calc slope? I said that my fadal does not like stock left in the bottom of a cut which actually means that I step down on my cuts and it doesn't like stock much anywhere for finish.
    A simple formula? Yes and No. But is sounds like your Fadal may have some other issues.... or possibly its in the tooling or setup. Even as weak as a Fadal is, it should perform much better than by what you're describing.

    I have found that the "formula" changes quite a bit from machin to machine, holder to holder, set up to set up, cutter to cutter.... etc. If you need something to start with, ... maybe a couple degrees or 5% step out total. The trick is knowing what to look for to adjust to. Bigger can be better, but bigger isn't always better. Deeper pockets will pose a problem with this thought process as well. Since by calculation, you could end up with a real big cut on the bottom. The long LOC tools will generally perform better at full or 2-3D minimum DOC. I have 9D LOC tools that run at full length. You don't necessarily need to have a bunch of rpm either. Harmonic stability is what you're after. Often, you'll find that cutting back on the rpm will improve your success.

  3. #43
    Join Date
    Nov 2005
    Country
    UNITED STATES
    State/Province
    Illinois
    Posts
    2,097
    Post Thanks / Like
    Likes (Given)
    216
    Likes (Received)
    1758

    Default

    So far I have the 5/16 , 3/8, and 7/16 finished from the coater. You can barely see but the entire shank is reduced. About .01 per side on all of them. All of them are variable helix.
    It almost looks like the shank is reduced where the Tialn coating ends but that is not the case. The neck starts exactly where the flute ends.


  4. #44
    Join Date
    Sep 2002
    Location
    Lawrenceville GA USA
    Posts
    6,282
    Post Thanks / Like
    Likes (Given)
    855
    Likes (Received)
    1382

    Default

    Are the 1/2 size going to be available soon as well? I would like to get a few of them if they will be available.

    Charles

  5. #45
    Join Date
    Nov 2005
    Country
    UNITED STATES
    State/Province
    Illinois
    Posts
    2,097
    Post Thanks / Like
    Likes (Given)
    216
    Likes (Received)
    1758

    Default

    Yes. I will have them early next week. They are getting coated currently.

  6. #46
    Join Date
    Sep 2002
    Location
    Lawrenceville GA USA
    Posts
    6,282
    Post Thanks / Like
    Likes (Given)
    855
    Likes (Received)
    1382

    Default

    Thanks, I look forward to trying them out...

    Charles

  7. #47
    Join Date
    Dec 2019
    Country
    UNITED STATES
    State/Province
    New Hampshire
    Posts
    25
    Post Thanks / Like
    Likes (Given)
    76
    Likes (Received)
    19

    Default

    Quote Originally Posted by fmari --MariTool- View Post
    1/4 X .236 shank X.75 flute X 3.0 total length $25.50
    3/8 X .354 shank X .875 flute X 3.5 total length $33.00
    1/2 X .484 shank X 1.0 flute X 5.0 total length $57.80
    5/8 X .593 shank X 1.25 flute X 5.0 total length $78.10
    3/4 X .734 shank X 1.5 flute X 6.0 total length $105.00
    1.0 X .968 shank X 1.5 flute X6.0 total length $160.00
    Wish I saw this a couple of days ago, would have saved a few bucks and a huge hassle. I guess I was only 12 years late... Maritool endmill page bookmarked now.

  8. #48
    Join Date
    Nov 2005
    Country
    UNITED STATES
    State/Province
    Illinois
    Posts
    2,097
    Post Thanks / Like
    Likes (Given)
    216
    Likes (Received)
    1758

    Default

    Damn thats a long time ago. BTW whatever happened to psychomill ?

  9. Likes doug925 liked this post
  10. #49
    Join Date
    Nov 2002
    Country
    UNITED STATES
    State/Province
    Texas
    Posts
    3,309
    Post Thanks / Like
    Likes (Given)
    1946
    Likes (Received)
    832

    Default

    I wonder what happened to both, Psychomill and PBMW?

  11. #50
    Join Date
    Sep 2010
    Location
    Oklahoma City, OK
    Posts
    4,818
    Post Thanks / Like
    Likes (Given)
    849
    Likes (Received)
    1994

    Default

    Quote Originally Posted by fmari --MariTool- View Post
    Damn thats a long time ago. BTW whatever happened to psychomill ?
    I think I read that he got into mgmt and kinda quit posting after that.

  12. #51
    Join Date
    Nov 2013
    Country
    UNITED STATES
    State/Province
    Utah
    Posts
    4,783
    Post Thanks / Like
    Likes (Given)
    1263
    Likes (Received)
    2678

    Default

    Psychomill lives here now. There were some medical complications, IRRC. Family stuff gets hard. He's alive though.

    R

  13. #52
    Join Date
    Nov 2007
    Location
    marysville ohio
    Posts
    9,789
    Post Thanks / Like
    Likes (Given)
    2807
    Likes (Received)
    6484

    Default

    Quote Originally Posted by Bobw View Post
    Smallshop, that is a fantastic idea, give me a 1/2" variflute, on a 4 or 5 inch blank, with a .490 shank the whole way up, maybe 1/2"-1" or so of flutes.

    Fantastic idea. I can just grab it in a collet, or make the cutting part metric 13mm and the shank 1/2". That is a winner of an idea and something I would absolutely buy, not a lot, but I would keep some on hand.
    I get 6" long, .5 dia. 3 flute 3/4 loc, shank .5 dia. for the first 1.85, then .47 diameter from garr tool. I use them for 4" deep pockets in 7075 t6 They work great.


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
  •