Free 173 Best Homemade Tools eBook:  
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 18

Thread: Spindexer and machining morse taper sleeves.

  1. #1
    [email protected] tonyfoale's Avatar
    Join Date
    Nov 2016
    Location
    Spain
    Posts
    746
    Thanks
    303
    Thanked 1,245 Times in 380 Posts

    tonyfoale's Tools

    Spindexer and machining morse taper sleeves.

    Yesterday I needed to sharpen a large milling cutter which I had not used in a while. Problem was that it had a No.2 morse taper and the Spindexer that I use on my Tool and Cutter grinder takes 5C collets and I have a 5C to ER25 adaptor for small size cutters. Neither are any good to hold a morse taper. I was sure that it would be possible to find a 5C solid collet with a MT2 taper. Neither eBay, Google nor Amazon came up with anything. Google lead me to some forums where others were after the same thing but the general consensus was that Hardinge used to make them but not anymore.

    Spindexer and machining morse taper sleeves.-mt2-sleeve.jpg Click for full size images.

    So then I had the idea to look for an MT2 sleeve with a parallel OD. I easily found them with 1” and 25mm ODs as shown here and I have 5C collets of those sizes.

    Unfortunately there is no McMaster Carr around here with next day delivery and I did not want to wait a week or two for one to arrive from China or the UK. So I decided to make one but the movement on my lathe compound rest is just short of being able to make the full length of an MT2 in one pass. I wondered if I could use a modified MT3 to MT2 sleeve. I had 5 of those collected over the years and my luck was in. One of the five was not fully hard, which meant that I could machine the outside easily. A quick check showed that the shallow taper easily allowed for a long enough parallel section of 22 mm to fit a 5C collet of that size.

    So how do you hold a fully tapered sleeve accurately to turn it? You mount it on a male MT2 as a mandrel. I had a long accurately made boring bar which had an undamaged centre on the tang, so I held it with a centre at the far end and carefully chucked it at the other. The taper section ran true to better than 0.01 mm all over. I then fitted the sleeve over the end and recentred it on the sleeve centre. Then it was a piece of cake to machine an area to 22 mm OD and a little longer than the gripping area of the 5C collet. Beyond that I relieved the sleeve to 21 mm just for ease of fitting. I left a rim around the end of the sleeve both for strength and location purposes. I did not need the location feature this time but who knows what the future requires.

    Spindexer and machining morse taper sleeves.-mt2mandrel.jpg Spindexer and machining morse taper sleeves.-sleeve00.jpg

    On the left is the boring bar to use as a mandrel and to the right we can see the finish machined sleeve.

    Spindexer and machining morse taper sleeves.-sleeve01.jpg

    The finished sleeve, right, next to a stock MT3 to MT2 sleeve.

    Spindexer and machining morse taper sleeves.-sleeve02.jpg Spindexer and machining morse taper sleeves.-sleeve03.jpg

    Sleeve, prior to and after fitting.

    Less than an hour after starting, my milling cutter was nice and sharp and ready for duty. While I was at it I sharpened a few more tools with an MT2 mounting.

    Spindexer and machining morse taper sleeves.-ready2go-01.jpg

    Cutter sharp and ready to do some work. The wheel guard was removed for the photo.

    The T&C grinder build was described here Homemade Tool & Cutter grinder (with a difference).

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

    jjr2001 (01-07-2019), Jon (01-10-2019), LMMasterMariner (01-16-2019), Okapi (01-08-2019), Paul Jones (01-13-2019), rendoman (01-10-2019), rossbotics (01-07-2019), scrdmgl (01-07-2019), Seedtick (01-07-2019), Toolmaker51 (01-13-2019)

  3. #2
    crazypj's Avatar
    Join Date
    Nov 2014
    Location
    Central Florida
    Posts
    48
    Thanks
    5
    Thanked 15 Times in 11 Posts

    crazypj's Tools
    Lucky you found an un-hardened adapter.

  4. The Following User Says Thank You to crazypj For This Useful Post:

    tonyfoale (01-07-2019)

  5. #3
    [email protected] tonyfoale's Avatar
    Join Date
    Nov 2016
    Location
    Spain
    Posts
    746
    Thanks
    303
    Thanked 1,245 Times in 380 Posts

    tonyfoale's Tools
    Quote Originally Posted by crazypj View Post
    Lucky you found an un-hardened adapter.
    Well I would have just ground a hardened one but it would have taken longer.

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

    jjr2001 (01-07-2019)

  7. #4
    crazypj's Avatar
    Join Date
    Nov 2014
    Location
    Central Florida
    Posts
    48
    Thanks
    5
    Thanked 15 Times in 11 Posts

    crazypj's Tools
    I bought a couple of centre's for something I was going to make. They were supposed to be 'soft' but were hardened and took lot longer than expected to grind. In fact, I gave up after the first one

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

    tonyfoale (01-07-2019)

  9. #5
    rossbotics rossbotics's Avatar
    Join Date
    Dec 2013
    Location
    Florida
    Posts
    695
    Thanks
    931
    Thanked 1,375 Times in 386 Posts

    rossbotics's Tools
    Where there's a will there's a way, good job Tony

    Doug
    Comments are always welcome
    Doug

    Subscribe to my you tube channel

    https://www.youtube.com/channel/UCDD..._as=subscriber



    Tool Plans for Sale by rossbotics






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

    jjr2001 (01-07-2019), tonyfoale (01-07-2019)

  11. #6
    [email protected] tonyfoale's Avatar
    Join Date
    Nov 2016
    Location
    Spain
    Posts
    746
    Thanks
    303
    Thanked 1,245 Times in 380 Posts

    tonyfoale's Tools
    Quote Originally Posted by rossbotics View Post
    Where there's a will there's a way, good job Tony

    Doug
    I have a surfeit of will.

  12. #7
    jjr2001's Avatar
    Join Date
    Jun 2016
    Posts
    815
    Thanks
    1,090
    Thanked 1,531 Times in 493 Posts

    jjr2001's Tools
    Thanks for posting this Tony. I have run into that problem more than once and now I
    know how to fix it. Nice write up and pics.

    Cheers, JR

  13. #8
    [email protected] tonyfoale's Avatar
    Join Date
    Nov 2016
    Location
    Spain
    Posts
    746
    Thanks
    303
    Thanked 1,245 Times in 380 Posts

    tonyfoale's Tools
    Quote Originally Posted by jjr2001 View Post
    Thanks for posting this Tony. I have run into that problem more than once and now I
    know how to fix it. Nice write up and pics.

    Cheers, JR
    I made a previous post about an easy way to employ a morse taper. That time it was about converting a chuck only drill to a MT2 machine. You can find it here Adding a morse taper to drill press.

  14. The Following User Says Thank You to tonyfoale For This Useful Post:

    jjr2001 (01-07-2019)

  15. #9
    [email protected] tonyfoale's Avatar
    Join Date
    Nov 2016
    Location
    Spain
    Posts
    746
    Thanks
    303
    Thanked 1,245 Times in 380 Posts

    tonyfoale's Tools
    For anyone who wants a permanent copy of this post I have uploaded a PDF version to my web site, you can download it here;
    PDF version

  16. The Following User Says Thank You to tonyfoale For This Useful Post:

    jjr2001 (01-07-2019)

  17. #10
    crazypj's Avatar
    Join Date
    Nov 2014
    Location
    Central Florida
    Posts
    48
    Thanks
    5
    Thanked 15 Times in 11 Posts

    crazypj's Tools
    Quote Originally Posted by tonyfoale View Post
    I have a surfeit of will.
    It's cos' your British, sarcasm and innuendo come naturally to us.

    Quote Originally Posted by tonyfoale View Post
    For anyone who wants a permanent copy of this post I have uploaded a PDF version to my web site, you can download it here;
    PDF version
    I was interested in the grinder head you made but link no longer works?
    Last edited by crazypj; 01-07-2019 at 02:52 PM.

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
  •