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  1. #1
    Join Date
    Nov 2008
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    Perth WA
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    Default Controlled Creeping - Adjustable X Axis Table Stops for the O and 1

    I have often thought a pair of adjustable stops would be useful on both the No.O mill and the No.1 tool and cutter grinder. Years ago I made a couple of stops for the Y axis on my other mill so it was only a matter of changing the scale to suit the Hercus'.

    Schaublin 13 - Horizontal Slide Stop 6.9.10 001 (Medium).jpg

    I had been my intention to make one pair that were interchangeable between both machines given that they share similar but not identical tee slots. A slightly oversize cross drilled hole through the "tee" bolt would accommodate the difference in the tee slot dimensions and provide the required interchangeability.

    So I made a pair using 7/8" square 1214 for the "nut". They looked OK scalewise on the tool and cutter grinder but were in my mind, a bit too large for the little No.O. So I made another pair, this time from some 20mm square 1214. The 5/16" UNF threaded screws and knurled nuts are also 1214, not my favourite material due to its propensity to rust, but given Hercus used the stuff freely on most of their machines, I decided it wouldn't be out of place. Plus, it's easier to machine than 4140. The 13's adjusters are a combination of 4E cast iron and 4140.

    IMG_20190628_093712393.jpg IMG_20190628_093946476.jpg IMG_20190628_101017528.jpg IMG_20190628_101604072.jpg

    The fixed stops had me toing and froing. I had toyed with the idea of rounding some of their surfaces but simplicity reigned. I don't think the end results look out of place. The stop on the grinder also serves as one of the three table keep plates required to prevent the table tipping off its ball bearing mount. That stop is 4E, the mill's, 1214.

    IMG_20190630_095249332.jpg IMG_20190630_095652553.jpg IMG_20190703_162339133.jpg IMG_20190703_162707820.jpg

    The idea of interchangeabity seemed like a worthwhile pursuit but in reality it meant removing the grinder's table end covers, the table swivel fine adjuster and a pair of small travel stop screws from the tee slot. Certainly not as convenient as a pair permanently insitu adjusters.

    Bob.

  2. #2
    Join Date
    Oct 2010
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    melbourne, laverton
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    1,910

    Default Outstanding.

    It's nice to see that there's some things in this world that DC ont change much. Like the beautiful work you do Bob. Plus how shiny your little machines are.
    Aaron

  3. #3
    BobL is offline Member: Blue and white apron brigade
    Join Date
    Feb 2006
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    Perth
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    Default

    I've also seen these in the flesh so to speak and can confirm they look every bit as good as the photos.

  4. #4
    Join Date
    Nov 2008
    Location
    Perth WA
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    Default The Original Stops.

    Thank you all for the thanks and kind words. They are greatly appreciated.

    For context I should have posted the photo below earlier because not everyone would be familiar with the lilttle Hercus mill. The grinder utilises the same sliding stops but the fixed stop is three inches wide with an integral lip behind its top edge.

    IMG_20190708_132733485.jpg

  5. #5
    Join Date
    Jul 2019
    Location
    Texas
    Posts
    15

    Default

    Those are great pictures.

  6. #6
    Join Date
    Jul 2011
    Location
    Adelaide
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    837

    Default

    Quote Originally Posted by Anorak Bob View Post
    Thank you all for the thanks and kind words. They are greatly appreciated.

    For context I should have posted the photo below earlier because not everyone would be familiar with the lilttle Hercus mill. The grinder utilises the same sliding stops but the fixed stop is three inches wide with an integral lip behind its top edge.

    IMG_20190708_132733485.jpg
    Anorak Bob, Absolutely brilliant work, ever since I got my little Macson bench surface with the micrometer head stops I have thought an adjustable stop on my Hercus #1 T&C grinder would actually be more useful. I think your implementation is very in keeping with the machine.
    Eric

  7. #7
    Join Date
    Nov 2008
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    Perth WA
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    Default

    Quote Originally Posted by lamestllama View Post
    Anorak Bob, Absolutely brilliant work, ever since I got my little Macson bench surface with the micrometer head stops I have thought an adjustable stop on my Hercus #1 T&C grinder would actually be more useful. I think your implementation is very in keeping with the machine.
    Eric
    Thank you Eric.

    I had thought about some form of graduated adjuster but the associated size and complexity made the decision to make a simple adjuster easy. The adjusters shown in Bill's photos in your Macson thread look really neat but they are probably still a bit too large for the Hercus.

    Table stop detail 1.jpg

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