Refurbishing Unknown Index Mill
Close
Login to Your Account
Results 1 to 4 of 4
  1. #1
    Join Date
    Sep 2019
    Country
    UNITED STATES
    State/Province
    Minnesota
    Posts
    3
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    2

    Default Refurbishing Unknown Index Mill

    Hi everyone, I've been gaining interest in machining since I started watching Abom79, This Old Tony and AvE years ago. A few weeks ago I saw an Index Mill on eBay and it looked to be in passable condition and at the right price. I just picked it up this last weekend. The only name plate on the mill says "Index Machine & Tool Co Jackson Mich". The seller also didn't have much information on it as he was selling it for his father who has dementia. It appears very similar to an Index Model 40 with a few differences to the knee and base castings, as well as having no quill. I'm thinking its an earlier model. I'm anxious to get my feet wet making some chips, but some maintenance is in order first. Everything on the mill functioned when i got it, but the machine had a lot of play in it. I believe my first goal will just be to take everything apart and clean it. The groves in the ways are packed with grease and the screws covering the oil ports have been painted over. Until a few days ago I had never touched a milling machine, so my main hope for making this post is that someone can point out any boneheaded mistakes I'm making! Having read this forum a fair amount, thanks in advance to anyone reading!s-l1600.jpgs-l1600-1-.jpgs-l1600-2-.jpgimg_20190904_181003.jpgimg_20190904_180938.jpg

  2. Likes DrHook liked this post
  3. #2
    Join Date
    Sep 2019
    Country
    UNITED STATES
    State/Province
    Minnesota
    Posts
    3
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    2

    Default

    I've contacted Index, they're looking into it. It is a B&S 9 taper. Spindle bore looks a bit rough, but I measured just over a thou of run-out on the side of an endmill holder. I've taken off the table, saddle and knee. Ways look alright. Decent gouge in the left way on top of the knee and another on the left way on the column. The way on the back of the knee also has what looks to be a casting defect in it. I'm guessing this contributed to the gouge in the column, there was allot of gunk in it. The hand wheels had about 90 thou of play on the dials. The lead screws have some wear in them, and the acme thread on the lead nuts is worn so far that it's sharp. I'd like to remake those brass nuts but they're a 7/8-5 acme thread and one is left hand thread. I can't find a tap that size and I don't have a lathe to cut that thread. So I guess I'm just stuck with 90 thou of backlash for now.
    img_20190904_181155.jpg
    img_20190904_185456.jpg
    img_20190904_185613.jpg
    img_20190904_221918.jpg
    img_20190905_134815.jpg

  4. Likes JHOLLAND1 liked this post
  5. #3
    Join Date
    Sep 2019
    Country
    UNITED STATES
    State/Province
    Minnesota
    Posts
    3
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    2

    Default

    some more photos
    img_20190905_134825.jpg
    img_20190905_134859.jpg
    img_20190905_134908.jpg
    img_20190905_134937.jpg
    img_20190905_134944.jpg

  6. #4
    Join Date
    Aug 2004
    Location
    ventura,ca.usa
    Posts
    367
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    51

    Default

    Hi Caleb, welcome to the forum if no one has already done so. This place may be of some help: 7/8 - 5 Left Hand Acme Lead Screws & Nuts for Power Transmission - Roton Products, Inc. Index mills are good machines, that one is an oldy for sure, please keep pictures of your progress coming. Jim


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
  •