Results 1 to 6 of 6
  1. #1
    medwards is offline Aluminum
    Join Date
    Feb 2009
    Location
    Hendersonville, TN
    Posts
    101

    Default Mitutoyo DRO compatibility

    I have an older Mitutoyo DRO on my mill shown below. The readout model number is GML-3705w.

    Can I retrofit a reader from a newer mitutoyo dro and keep the old scales? Does this old readout have any value (it still works)?




  2. #2
    RJT
    RJT is offline Stainless
    Join Date
    Aug 2006
    Location
    greensboro,northcarolina
    Posts
    1,682

    Default

    Probably. I have seen adaper plugs for new readout boxes and old glass scale connectors. Mititoyo can tell you. No idea what value the old one is, put it on Ebay and find out.

  3. #3
    JHOLLAND1's Avatar
    JHOLLAND1 is offline Titanium
    Join Date
    Oct 2005
    Location
    western washington state
    Posts
    2,427

    Default

    I have a similar vintage Mitutoyo display which I use to test all manner of linear and rotary encoders. These are simple and rugged. Worth about $100 on ebay.
    Main problem with newer displays connecting to older scales is need for adapter to mate plug on scale to display. Your display connector has +5vdc, com, A, B, index. (five wire.). Newer displays are made for at least 9 wire scales. They still are based on ttl signals but connectors are almost always needed. Of course, they really stick it to you when purchase these.

    jh

  4. #4
    bigearl67's Avatar
    bigearl67 is offline Hot Rolled
    Join Date
    Apr 2009
    Location
    Sticks, Indiana
    Posts
    745

    Default

    If it still works why replace it?

  5. #5
    medwards is offline Aluminum
    Join Date
    Feb 2009
    Location
    Hendersonville, TN
    Posts
    101

    Default

    I knew that would get asked eventually. Plenty of reasons. First; I'm more familiar with the latest model mitutoyo dro. Second; I just finished rebuilding the head on the mill to like new, the ways are in perfect condition and overall the machine is like new. The control works fine but some of the buttons are sticky or don't work. I've pulled the control apart and cleaned the button contacts, but they still don't work 100%.

    So, I want to replace it because it's the low point of an otherwise fantastic machine. I wan't the functionality and ease of use of the new reader. And I bought the mill so cheap, I have plenty of money left over in my budget to replace it.

    Back to the original question.

    I found the adapter part number to hook up a KA counter in this thread. mitutoyo dro A quick search showed a price of $35 each for the adapters.
    Quote Originally Posted by MitutoyoDROguy View Post
    Mitutoyo's KA counter lists at $521. You usually find them around $450.

    If the scales have a 6 pin round connector, you can use a 09AAA207 adapter (1 per scale).
    If the scales have a 7 pin round connector, the scales must be replaced. There is no adapter.
    If the scales have 15 pin D-sub they will connect direct.

    If are going to look for something used, make sure to ask about the above connectors on that unit.

  6. #6
    PWP's Avatar
    PWP
    PWP is offline Cast Iron
    Join Date
    Apr 2005
    Location
    Wildwood, MO
    Posts
    492

    Default

    I have a similar readout that is a for parts. If you are interested I can dig it 0ut and check the keypad. The transformer is bad in mine.

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
  •