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  1. #16
    Join Date
    Oct 2019
    Location
    Nth Queensland
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    55

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    Anorak/Bob my apologies I would have acknowledged your copyright on drawing had I known. Sourced same from Mal. Thanks for your expertise. And thanks Ulfr for asking the questions all of which are helping my own project.

    tham60

  2. #17
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
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    6,458

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    Quote Originally Posted by Ulfr View Post
    Thanks Bob! Looks like it doesn't it. After seeing those pics I went to the box of bits that came with it and found one of the screws. Missing one but at least I know exactly what to replace them with That is great.

    I do need to find/make the arbor for the gear, It isn't here unfortunately.

    Ulf,

    You could purchase a blank end arbor and turn the blank to suit the gear's bore. This example has a M12 drawbar thread which can be ignored because a drawbar isn't required since the gear is screwfixed to the spindle nose. The arbor is required for alignment.

    https://www.ebay.com.au/itm/RDGTOOLS...0AAOSw44BYPYak

    Bob.

  3. #18
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
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    6,458

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    Quote Originally Posted by lamestllama View Post
    If you do have to roll your own tailstock I have some castings for the tailstock body part but not unfortunately the bracket.
    Ha Eric!!

    I bet those castings were sitting on a dusty shelf when I carved my pretender from a block back in 2009. If only.....

  4. #19
    Join Date
    Jun 2020
    Location
    Brisbane
    Posts
    21

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    Will do Bob! And may take you up on that Eric. At the moment I'm waiting on some possible/promising parts so see what happens there



    In this photo, is this a drawbar and taper part (sorry I don't know what it is called) for tightening collets in the vertical head? I could be way off, just having a beginning hobbyist guess at what it might be.

    I was separating out some parts from other machines and didn't know.
    vertical head draw bar.jpg

  5. #20
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
    Posts
    6,458

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    Ulf,

    Eric 'Lamestllama' asked me a question about 3C drawbars only the other day and I photographed my collection.

    Hercus made a number of drawbars ( or draw in tubes ) of varying lengths to suit the No.O's vertical and horizontal spindles, the mill's dividing head, the lathe's indexing attachment for the vertical milling slide as well as a similar looking drawbar for the tool and cutter grinder's workhead. The handwheels differed on some of the drawbars, most were coarsely knurled but I have one long version that features the same fluting as yours but doesn't fit my early O's horizontal spindle. The unhandled tube in the photo is the correct length for my mill.

    The last two photos show a three slotter with the 'draw in tube' installed in the vertical head. Same fluted style as yours.

    The 'taper part' is simply called a nose adaptor.

    IMG_20200804_163244647.jpg IMG_20200804_164412207.jpgUniversal-Milling-Machine_32005657.h.jpgUniversal-Milling-Machine_32005662.h.jpg

    Bob.

  6. #21
    Join Date
    Jun 2020
    Location
    Brisbane
    Posts
    21

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    Thanks so much Bob.

    i have a longer one here too, I didn’t even consider could be for the mill (assumed lathe).

    it has a wheel handle.
    5E7639BB-E7B3-44A6-BC61-7F2CDCC4E9A8.jpeg

  7. #22
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
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    Ulf,

    Good chance the wheel handled version fits a lathe. It looks the same as the one I use in my 9" spindle and it isn't long enough to be used in the O's spindle.

    Bob.

  8. #23
    Join Date
    Oct 2019
    Location
    Nth Queensland
    Posts
    55

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    Noobhercusowner has posted (see below) a copy of the Hercus instructions on fitting the vertical head over the spindle nose, which specifies the use of a collar to align the mounting racket of the head. The mounting dowel holes are then drilled to size.

    On a post some time ago by me, it was suggested that the dowels when turned to fit were stepped.

    Question is in the absence of the aid of a mounting collar what is the alternative process to ensure correct alignment, if any?

    Terry (tham60)

  9. #24
    Join Date
    Jun 2020
    Location
    Brisbane
    Posts
    21

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    Good question Terry. I see 3 holes either side of my spindle so I suspect that is the four bolts (I think later are four) and two dowels but don’t know for sure.

    Took the vice off For the first time in what could have been a long time so here is the before clean up/refurb pic.

    I also have this thing which I know is used with the dividing head but not sure how or of its exact purpose. I tried searching but couldn't find answers.

    Edit: I have just seen a pic of something similar holding a dog and I do have a little one in the pile that looks like it fits. Makes sense that you would need to tighten it on the dog on a mills dividing head.

    909677AB-B7DA-4709-B603-393601902BB6.jpeg
    1D7D5B0E-5B53-4377-AD1D-C2B438B34166.jpeg
    76783E4D-3D4B-4409-AE91-0D89E9CA47DE.jpeg
    Last edited by Ulfr; 12th Aug 2020 at 09:03 PM. Reason: Figured it out I think.

  10. #25
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
    Posts
    6,458

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    Quote Originally Posted by Tham60 View Post
    Noobhercusowner has posted (see below) a copy of the Hercus instructions on fitting the vertical head over the spindle nose, which specifies the use of a collar to align the mounting racket of the head. The mounting dowel holes are then drilled to size.

    On a post some time ago by me, it was suggested that the dowels when turned to fit were stepped.

    Question is in the absence of the aid of a mounting collar what is the alternative process to ensure correct alignment, if any?

    Terry (tham60)
    You need the collar Terry.

    It is a simple thing to make and given that you only need to use it once it could be made from 1214 or aluminium.

    Bob.

  11. #26
    Join Date
    Aug 2012
    Location
    Greenmount, W.A.
    Age
    70
    Posts
    272

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    Quote Originally Posted by lamestllama View Post
    If you do have to roll your own tailstock I have some castings for the tailstock body part but not unfortunately the bracket.
    Hello Bob,

    I have an O mill too, and a dividing head. Not sure if I have a tailstock, and won't be able to check until the weekend. If your offer falls through..... I may be interested in taking your bits off your hands, and as a bonus, I am local!

    Regards,
    Alan.

  12. #27
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
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    6,458

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    Quote Originally Posted by A J in WA View Post
    Hello Bob,

    I have an O mill too, and a dividing head. Not sure if I have a tailstock, and won't be able to check until the weekend. If your offer falls through..... I may be interested in taking your bits off your hands, and as a bonus, I am local!

    Regards,
    Alan.
    Hello Alan,

    It is Eric in Adelaide who has the tailstock castings, not I.

    Sorry mate.

    Bob.

  13. #28
    Join Date
    Oct 2019
    Location
    Nth Queensland
    Posts
    55

    Default Mounting Collar

    Seems the instructions and dimensions for the mounting collar for head previously posted are for the two slotter. What variations might there be to the procedure for the thee slot head? And does anyone have the mounting collar dimensions for the three slot version. I know I should be able to measure these out , however given my rank amateur status will greatly increases the margins for error.

    Also it may be that the head I have has been fitted previously to another mill, the dowel holes in it already being at 5/16 as specified in the previous post. Is this likely to effect anything come mounting time?

    Terry

  14. #29
    Join Date
    Jun 2020
    Location
    Brisbane
    Posts
    21

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    Many many thanks to Mal, I have a vertical head and tail stock for the dividing head


    Will do the arbor/spiggot and dowels.
    Attached Images Attached Images

  15. #30
    Join Date
    Jun 2020
    Location
    Brisbane
    Posts
    21

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    Actually does anybody have a photo of the later model dowels? I did find two of these which fit the dowel holes and and have the smaller threaded end which seems to match the recessed thread in the dowel hole (didn’t push it, need to clean out mud wasp gunk).

    They also work when you look at the corresponding holes on the head, did they perhaps use these dowel pin/bolts for locating the head in later models? I haven’t read anything like that but it makes sense.
    Attached Images Attached Images

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