Free 186 More Best Homemade Tools eBook:  
Get tool plans

User Tag List

Page 2 of 2 FirstFirst 1 2
Results 11 to 15 of 15

Thread: Fly Cutter with R8 arbor for the mill..Plans available by Rossbotics.

  1. #11
    Supporting Member jjr2001's Avatar
    Join Date
    Jun 2016
    Posts
    927
    Thanks
    1,185
    Thanked 2,092 Times in 562 Posts

    jjr2001's Tools
    Thanks PJs, this was a lot of fun to make. Got to use that new lathe motor and vfd a lot!
    I have a local source of end cut off pieces of steel and aluminum so I get most of my metal there.
    Aluminum end cut offs for $2.50 per lb and steel (mostly hot rolled) for a whopping $0.65 per lb.

    A few online sources for drill rod and a bit of cast iron so I usually have something on hand for most of my builds.

    My local source also has 1018 in stock also. If I had not found that local outfit I might never have made my CNC
    machine and therefore I would probably still be cutting wood only!
    That place keeps me in metal!

    Cheers, JR

    186 More Best Homemade Tools eBook

  2. The Following 2 Users Say Thank You to jjr2001 For This Useful Post:

    PJs (Jan 2, 2019), Toolmaker51 (Mar 17, 2019)

  3. #12
    PJs
    PJs is offline
    Supporting Member PJs's Avatar
    Join Date
    Sep 2014
    Location
    Northern CA
    Posts
    1,844
    Thanks
    8,427
    Thanked 1,129 Times in 725 Posts

    PJs's Tools
    Quote Originally Posted by jjr2001 View Post
    Thanks PJs, this was a lot of fun to make. Got to use that new lathe motor and vfd a lot!
    I have a local source of end cut off pieces of steel and aluminum so I get most of my metal there.
    Aluminum end cut offs for $2.50 per lb and steel (mostly hot rolled) for a whopping $0.65 per lb.

    A few online sources for drill rod and a bit of cast iron so I usually have something on hand for most of my builds.

    My local source also has 1018 in stock also. If I had not found that local outfit I might never have made my CNC
    machine and therefore I would probably still be cutting wood only!
    That place keeps me in metal!

    Cheers, JR
    Nice! Not sure if you have one in your area (looks to be 2 or 3) but Fastenal carries 01 and hot and cold roll in short lengths and decent prices. I get most of my 01 from them.

    Cheers, PJ

    2,000+ Tool Plans
    ‘‘Always do right. This will gratify some people and astonish the rest.’’
    Mark Twain

  4. The Following 2 Users Say Thank You to PJs For This Useful Post:

    jjr2001 (Feb 22, 2019), Toolmaker51 (Mar 17, 2019)

  5. #13
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    5,334
    Thanks
    7,044
    Thanked 3,011 Times in 1,900 Posts

    Toolmaker51's Tools
    Quote Originally Posted by jjr2001 View Post
    Thanks Doug, I never would have thought of using the fly cutter for that pattern.
    If you had not posted how it was done I would have thought hours were expended
    with a rotary table and end mill! Your method would be so fast in comparison.

    Cheers, JR

    Not unlike process milling cylinder heads for gasket retention. You'll enhance the knurl or checkering effect enlarging the cutting radius somewhat beyond edges of the plate being milled. Attaining the scored finish by reversing normal speed and feed ratios, once a true plane is cut.

    Another way tilts the head slightly, with a cutter ground to impart desired tool marks. Easier said than done, however.
    Many old machine tools were surfaced, by an unknown process name, in just this way, inclined cutters. The pattern shows up frequently on radial drill bases. Long, parallel, ultra shallow 'grooves', separated by a narrow land.
    As example, a 5/8" [.625, or 15.8mm] cutter inclined 1°, lower edge .002 or .003 into surface, stepped over .062 [1.58mm] or .687 [17,44mm]. Whatever surface width is divided by equally spaced tracks. Those tracks end [disappear] neatly in coolant troughs. Economy and machine sense tells me feed direction was reversed in the trough airspace. Old timers declared purpose broke surface tension of coolant under large flat parts. The narrow lands reduce contact friction [and scratches] positioning same large items as well.
    I seem unable to create a browser search for visual examples. Machining such a surface would be exponentially faster than Biax type scraping or flaking, which certainly don't render connected airways.
    Way back (x 8 or 9), Downey CA, I ran a monster Archdale radial drill, #6 taper and crazily rigid. I drilled pilot holes for 3" leader pins several times, naturally even larger for bushings, never used the largest bits we had...later pilot holes were bored for position on a Lucas horizontal. Guess who tabled those 11 ton molds? Anyway, the column was 18 or 20 inch, but arm was extraordinarily short, about 48". Whenever drilling backs of mold bases, or anything with protrusions on top side, I'd have to affix immense block table. It had coupler for compressed air, globe valve and venting so she'd float from the sled onto the machine base. No forklift required, positive that fixture weighed 6,000 pounds. Also positive the milled surface bled enough air to cushion fixture without suspending [?] it. Had that slid off, being drawn an quartered would only be initial retaliation.
    Archdale Machine Tools Nothing even close (or nearly as handsome operator) lol. Like K&T, Cincinnati etc, no iron shortage in British machinery. But you'll chuckle at some of the captions...
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  6. The Following User Says Thank You to Toolmaker51 For This Useful Post:

    jjr2001 (Mar 18, 2019)

  7. #14
    Supporting Member Toolmaker51's Avatar
    Join Date
    Feb 2016
    Location
    Midwest USA
    Posts
    5,334
    Thanks
    7,044
    Thanked 3,011 Times in 1,900 Posts

    Toolmaker51's Tools
    Quote Originally Posted by wizard69 View Post
    Nice fly cutter there. I can see where having a set of these in various diameters would be nice. I have to believe that this is a better balanced solution than some fly cutter designs.
    Partly that it's extremities aren't outside bearing diameters of the spindle. Retraction and locking quill also results with improved finish.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  8. The Following User Says Thank You to Toolmaker51 For This Useful Post:

    jjr2001 (Mar 18, 2019)

  9. #15
    Supporting Member jjr2001's Avatar
    Join Date
    Jun 2016
    Posts
    927
    Thanks
    1,185
    Thanked 2,092 Times in 562 Posts

    jjr2001's Tools
    Thanks TM, I enjoyed the shop tour. Impressive size of the "imperial" machines. (pun intended)
    That is an amazing web site with very interesting and informative information.
    Thanks again, JR



    2,000+ Tool Plans
    Back to the shop.

  10. The Following 2 Users Say Thank You to jjr2001 For This Useful Post:

    HobieDave (Mar 15, 2020), Toolmaker51 (Mar 18, 2019)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

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
  •