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

Search:

Type: Posts; User: donie

Page 1 of 60 1 2 3 4

Search: Search took 0.05 seconds.

  1. Replies
    5
    Views
    297

    Yes, see if the machine runs at a single speed...

    Yes, see if the machine runs at a single speed with the module removed, and check the module diodes, bad ones can point to the problem circuit.
  2. First, I have had the worst luck trying to re-use...

    First, I have had the worst luck trying to re-use bearings, I just gave up on that years ago, cant say a bad thing about new bearings.

    I am not trying to be a jerk, I will point out what you...
  3. Replies
    15
    Views
    573

    I estimate I have to dress the commutator about...

    I estimate I have to dress the commutator about every 3000 hours.
  4. Replies
    15
    Views
    573

    My MG set is the last version, but, if the...

    My MG set is the last version, but, if the earlier exciter uses a pair of, or split brushes, after time, they will wear a ridge down the middle of the commutator, that can be seen by the bright line...
  5. Replies
    76
    Views
    3,662

    Forrest Addy is, or was not any better at using...

    Forrest Addy is, or was not any better at using 4jaw chucks then many other past and current members here, maybe just better at explaining it. He also didnt have the indicator that also makes...
  6. Replies
    76
    Views
    3,662

    Ya, thats the other style of the same type of...

    Ya, thats the other style of the same type of centering tool! The wire through a piece of rubber seems like it would work good in a pinch, along with the wire in the center punch mark!
    I can use my...
  7. Replies
    42
    Views
    32,855

    Of the newer style machines, the Cadillac 14" has...

    Of the newer style machines, the Cadillac 14" has the shortest headstock with the type A spindle nose, the D type nose is around 2" longer. The Cadillac machines are far better then the green junk...
  8. Replies
    76
    Views
    3,662

    The old B&S center finder works probably better...

    The old B&S center finder works probably better then most any thing for aligning castings by a pre drilled center hole mounted on a face plate. One of the other functions using the hook end, was...
  9. Replies
    42
    Views
    32,855

    https://hosting.photobucket.com/albums/u265/donsmo...

    https://hosting.photobucket.com/albums/u265/donsmonarch10ee/DSC01106_zps26chtuoi.jpg

    Regarding the Monarch 10ee lathe I came up with a solution that worked for me, cant do a photo because of...
  10. Thread: Thread Chatter

    by donie
    Replies
    28
    Views
    1,357

    michiganbuck-Tried bringing in use of the tail...

    michiganbuck-Tried bringing in use of the tail stock center to see if that help

    One of many great tips from mb, that one would help eliminated some spindle problems hard to detect otherwise. Even...
  11. Replies
    3
    Views
    344

    That is an area that I have only looked at,...

    That is an area that I have only looked at, routine pulling the carriage top off. One I looked at was badly rusted inside from using water base coolant, Hardinge lathes states to use only straight...
  12. I have cut many acme threads, the last one was a...

    I have cut many acme threads, the last one was a double lead 8tpi, the actual cutting was set at 4tpi. Things move fast cutting 4tpi. I think it may be better to mill really coarse threads. The...
  13. Replies
    29
    Views
    1,498

    dazz-The accuracy of any grind is going to be...

    dazz-The accuracy of any grind is going to be defined by the lowest quality bearings, most likely the ones in the lathe head stock.

    I believe that to be true in my experience, the cutter grinder...
  14. Replies
    29
    Views
    1,498

    Size/capacity wise the units appear to be in the...

    Size/capacity wise the units appear to be in the range of this Dotco 60000rpm grinder made for attachment to machine tools.
    At the very center of the photo the Dotco grinders long neck is clamped...
  15. Replies
    76
    Views
    3,662

    AAAnd point being, a type of 4jaw chuck that is...

    AAAnd point being, a type of 4jaw chuck that is quick to adjust to true center by design. The lathe is a high speed machine, where as an item like a special chuck such as this will go a long way...
  16. Replies
    76
    Views
    3,662

    This is a very heavy duty Skinner 609 four jaw...

    This is a very heavy duty Skinner 609 four jaw chuck in about 4 3/8" diameter. The chuck is intended to hold small round parts solidly in small lathes and cylindrical grinders. The jaws are the width...
  17. Replies
    76
    Views
    3,662

    https://hosting.photobucket.com/albums/u265/donsmo...

    https://hosting.photobucket.com/albums/u265/donsmonarch10ee/DSC00839_zpsgop9cyci.jpg
    https://hosting.photobucket.com/albums/u265/donsmonarch10ee/DSC00840_zps69071fef.jpg

    Perhaps the earliest...
  18. Replies
    24
    Views
    1,410

    I think the only lathe I dont like is the Dunlap...

    I think the only lathe I dont like is the Dunlap 109, but I am sure there are folks out that has made great things on them. When I was first exposed to the EE in the late 70s* I was impressed by the...
  19. Thank you for showing this, I have always been...

    Thank you for showing this, I have always been curious about the Pope spindle, I see from the photos its a much more complicated spindle then most others. The bearing loading device with the multiple...
  20. Replies
    24
    Views
    1,410

    The machine looks good from the photos. When I...

    The machine looks good from the photos. When I look at these machines, I observe the top of the carriage, if the machine has had a lot of use like my 51 mfg model, the sharp edges of the top of the...
  21. I think so far, it is pretty much agreed that...

    I think so far, it is pretty much agreed that angles on small parts need to be done optically, an X-Y movement and a rotating platform like on a milling machine with a rotary table and a optical...
  22. Chicom Pistol ..."Why do you use a racist phrase...

    Chicom Pistol ..."Why do you use a racist phrase like that?"

    Only a Seattle snow flake would ask! But lets sort it out... First, it is a pistol, second, its made by Chinese communist state...
  23. Thread: TGS German chuck

    by donie
    Replies
    3
    Views
    602

    That style of chuck is medium/light duty compared...

    That style of chuck is medium/light duty compared to the direct mount heavy duty solid steel chucks that were factory supplied with my Powerturn. I think you will have little problem with that chuck,...
  24. Replies
    24
    Views
    1,410

    The motor looks newer then 50yrs old, I was...

    The motor looks newer then 50yrs old, I was wondering if the rest of the machine is like that, there are ones like that out there.
  25. this photo, inspecting the dovetail for the rear...

    this photo, inspecting the dovetail for the rear sight on a Chicom pistol, using the optical finder and a rotary table. not only the angles, but the dimensions to an easy .0002"-quickly....
Results 1 to 25 of 1500
Page 1 of 60 1 2 3 4