Scoring on slideways. What to do?
Close
Login to Your Account
Results 1 to 15 of 15
  1. #1
    Join Date
    Oct 2003
    Country
    CANADA
    State/Province
    Ontario
    Posts
    1,193
    Post Thanks / Like
    Likes (Given)
    77
    Likes (Received)
    122

    Default Scoring on slideways. What to do?

    I am "repairing" ( not rebuilding or restoring) an Aciera F4 milling machine.
    It has seen some abuse in its life, having been either tipped over, or hit by a forklift or something similar.
    That damage is pretty straight forward repair work. The worst of the abuse has resulted from incorrect lubrication practices. This machine has zerk fittings for oiling, but someone has tried to grease it. This has resulted in some scoring of the longitudinal ways. Fortunately the other ways have not been damaged.

    You will see from the pictures the extent of the damage. the worst I can reliably measure is aproximately 0.010" deep, with the most of it between 0.002 and 0.005" deep.

    I have been considering several options;
    1) Machine it clean, and install Turcite to bring the slide back to the original height,
    2) Scrape the slide ( this will cause some dificulty with lead screw alignment),
    3) use "scorex" ( a moglice product) this will necessitate grinding grooves in the way to provide adequate material thickness.
    4) scrape the way flat, ignoring the divots and consider them "oil pockets".

    I am leaning very hard toward option 4. the original scraping is still visible on the majority of the slide and I believe a little judicous scraping, and stoning will be adequate.

    I am looking for options. any advise considered and appreciated!

    Peter

    img_1087.jpgimg_1086.jpgimg_1081.jpgimg_1080.jpg
    Attached Thumbnails Attached Thumbnails img_1090.jpg  

  2. #2
    Join Date
    Oct 2003
    Country
    CANADA
    State/Province
    Ontario
    Posts
    1,193
    Post Thanks / Like
    Likes (Given)
    77
    Likes (Received)
    122

    Default

    Not sure how I got the 5th picture in there or why it is sidways...
    It's the machine when I put it together to see what I had...

  3. #3
    Join Date
    Jul 2005
    Location
    Cottage Grove, MN 55016
    Posts
    7,684
    Post Thanks / Like
    Likes (Given)
    4128
    Likes (Received)
    4575

    Default

    As the 5th picture post on # 2. I would say on the scoring if it is not exposed to leave it. The reason it is there is because of lack of oil when they cut in square and straight oil groove, I would grind diagonal live into the existing groves and 1/2 moon the unexposed to air side.
    As RK says below on a spring loaded wheel oiler.
    I found this on the net. ones I see have a vertical pipe in the bottom of the hole with a coil spring in the hole attached to roller holder that carry's a bronze or steel wheel. The hole is filled by hand or a Bijur fitting from a pump and as the wheels turn as the table is moved it roll oil onto the ways.
    round oiler used in surface grinder ways - Bing
    Last edited by Richard King; 01-26-2020 at 07:16 AM.

  4. Likes shapeaholic liked this post
  5. #4
    Join Date
    Feb 2001
    Location
    Redwood City, CA USA
    Posts
    5,001
    Post Thanks / Like
    Likes (Given)
    186
    Likes (Received)
    923

    Default

    The semicircular pocket in the 4th photo is supposed to contain a spring-loaded roller dipping in a puddle of oil and distributing it on the opposing flat way. Was the roller present?

    I have seen similar rollers on surface grinders and planers.


    Sent from my iPhone using Tapatalk

  6. Likes CBlair liked this post
  7. #5
    Join Date
    Oct 2003
    Country
    CANADA
    State/Province
    Ontario
    Posts
    1,193
    Post Thanks / Like
    Likes (Given)
    77
    Likes (Received)
    122

    Default

    Rick King,
    Thanks for your advise on the scoring. I think I will head that way.

    Rklopp
    Yes there is a roller for the oil that goes in that pocket. I have it and the spring. I can't say if it was installed as I got the machine in an unassembled state.
    In a previous post you asked about the alignment of the table. I am wondering how yours is aligned. The sliding member is slightly warped (0.0015") so I will have to fix that.

    Peter

  8. #6
    Join Date
    Jul 2005
    Location
    Cottage Grove, MN 55016
    Posts
    7,684
    Post Thanks / Like
    Likes (Given)
    4128
    Likes (Received)
    4575

    Default

    Double check the roller wheels as if they stop working they get flat spots on them. I have seen them made out of Bronze, steel and hard wood.

  9. #7
    Join Date
    Jul 2019
    Country
    CANADA
    State/Province
    Alberta
    Posts
    11
    Post Thanks / Like
    Likes (Given)
    3
    Likes (Received)
    6

    Default

    Hello Peter
    Consider machine size, value and use I will choose option #4
    Should be very careful with turcite - that material require relatively wide way, otherwise will flex and your table won't be sitting solid.
    You can machine ways, but need good accurate machine, if not will scrape forever after milling. Also screw position become an issue.
    We see this type of wear very often, especially on grinders and in most cases we scrape surfaces for oil purposes.
    Scrape, make new wipers and start to use it.
    Good luck

  10. #8
    Join Date
    Jun 2001
    Location
    St Louis
    Posts
    18,078
    Post Thanks / Like
    Likes (Given)
    1926
    Likes (Received)
    3061

    Default

    I see two things on the ways. I see regular "scoring", linear marks.

    I also see "gouges" that appear similar to what I have seen when swarf gets under the slide and gets carried along between the upper and lower parts.. I'd want to be very sure that I got wherever that swarf got in closed up so that there will not be any more getting in.

    Maybe it is just that the wipers were no good, or might be something else.

  11. Likes shapeaholic liked this post
  12. #9
    Join Date
    Oct 2003
    Country
    CANADA
    State/Province
    Ontario
    Posts
    1,193
    Post Thanks / Like
    Likes (Given)
    77
    Likes (Received)
    122

    Default

    "Maybe it is just that the wipers were no good, or might be something else."

    The machine does not have wipers on the longitudinal slide.
    The long moving part overlaps the short stationary.
    There is little doubt that the issue was lack of lubrication. This also trashed the lead screw.

    Scraping starts today or tomorrow...

    Pete

  13. #10
    Join Date
    Jun 2001
    Location
    St Louis
    Posts
    18,078
    Post Thanks / Like
    Likes (Given)
    1926
    Likes (Received)
    3061

    Default

    Quote Originally Posted by shapeaholic View Post
    "Maybe it is just that the wipers were no good, or might be something else."

    The machine does not have wipers on the longitudinal slide.
    The long moving part overlaps the short stationary.
    There is little doubt that the issue was lack of lubrication. This also trashed the lead screw.

    Scraping starts today or tomorrow...

    Pete

    Yeah, I get it. But that does not guarantee that crud did not get in there. It seems credible that it did, from the places that look like metal was ripped out. I've seen that on lathe ways also, from swarf.

  14. #11
    Join Date
    Dec 2003
    Location
    Calgary, Alberta, Canada
    Posts
    1,423
    Post Thanks / Like
    Likes (Given)
    9
    Likes (Received)
    97

    Default

    shapeaholic, did you ever finish your Hendy Toolroom lathe?

  15. #12
    Join Date
    Oct 2003
    Country
    CANADA
    State/Province
    Ontario
    Posts
    1,193
    Post Thanks / Like
    Likes (Given)
    77
    Likes (Received)
    122

    Default

    Quasi
    I finished it probably 8 years ago and have been using it happily since. It is a wonderful machine!
    I have just finished (except for new belts) a Smart and Brown 1024, and have another Hendey T&G waiting for some repairs.

    How do you like the big Rivett?

    Pete

  16. #13
    Join Date
    Dec 2003
    Location
    Calgary, Alberta, Canada
    Posts
    1,423
    Post Thanks / Like
    Likes (Given)
    9
    Likes (Received)
    97

    Default

    its great. The best lathe I have ever used, I just wish it had the taper attachment.

    The one fault I can give it is the lubrication for the carriage gears and the lubrication for the carriage and crossfeed ways shares the same oil sump. I drain, flush with paint thinner, and refill it every year.

    The Monarch 14AA you looked at in Niagra years ago has been in my brothers shop for years. I get to use it when I want for real heavy turning and drilling. It was made in 1946 so didn't get any war use. It was sold to a gear company in Montreal according to Monarch.

  17. #14
    Join Date
    Sep 2008
    Location
    Canada
    Posts
    1,012
    Post Thanks / Like
    Likes (Given)
    408
    Likes (Received)
    390

    Default

    Shapeaholic, pics please!

    L7

  18. #15
    Join Date
    Oct 2003
    Country
    CANADA
    State/Province
    Ontario
    Posts
    1,193
    Post Thanks / Like
    Likes (Given)
    77
    Likes (Received)
    122

    Default

    Out of town at the moment.
    pics when I get back.
    Pete


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
  •