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  1. #31
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    That is nice, and simple enough to make.
    I have a spare small milling machine table, maybe a future project for me.
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  2. #32
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    Quote Originally Posted by Dave J View Post
    That is nice, and simple enough to make.
    I have a spare small milling machine table, maybe a future project for me.
    Simpler and probably more versatile than a 450 dollar Chinese modular vice Dave. I need to get my pencil and paper out.

  3. #33
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    Quote Originally Posted by Anorak Bob View Post
    Simpler and probably more versatile than a 450 dollar Chinese modular vice Dave. I need to get my pencil and paper out.
    I really wanted a modular vice some years ago and found them at Asset Machinery for around $500 from memory for a 160mm one which was so cheap compared to Machinery house at double that.
    It was a big out lay for me for a vice just because I wanted one lol, so I never went through with it, then Eskimo put a post up asking about a good vice, then I put him onto them.
    After he bought one the price shot up to around $900 and if I remember right something about it being listed on their site wrongly, but he got it at that price.
    I read a post a while back that he has since bought another one.

    I really like the style you posted, what's your thoughts on material to use?
    I could see where steel maybe stronger considering that pivot pin, I'm not sure what pressure that pin would see but being that close to the edge cast iron may break out.
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  4. #34
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    Dave,

    I had been thinking of cast iron. In my mind's eye the Hercus No.3 tool and cutter grinder's swivelling upper table was larger but in reality it's too narrow and too thin to be of use as a donor for the Gack - like tee slotted table. The vice bodies would be 4E cast iron and I think the tilting vice jaw's pivot would compress the cast iron avoiding the risk of break out.

    2012-05-05 012 (Large) (3).JPG

  5. #35
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    Oct 2011
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    Basically, yes. Provided the CI is sandwiched between the t-nut and the body, it will be fine. The problems start when the CI is pulled up and there is nothing stopping it - too much tension on it and it will snap.

    Michael

  6. #36
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    This is the little mill table I have laying around. Has had 2 small repairs but looks well done.
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  7. #37
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    As promised, here's some photos of a 125mm Sagop RP80 modular vice.

    Sagop RP80 01.jpg
    Located in the circled area Under each jaw are two solid hard rubber cylinders about 20mm long. As the vice is tightened the jaws are forced downward preventing any lift in the work piece.
    The downward travel is limited by the step at the rear edge of each jaw, When the vice is loosened, the rubber cylinders force the jaws back upward.
    The amount of downward travel can be adjusted or completely locked out by how much the jaw retaining screws are tightened.
    In this picture, the jaw on the left is locked down and the jaw on the right is floating.

    Sagop RP80 02.jpg
    View of the bottom of the vice showing positions for t-slot locating blocks and central clamping holes.

    Sagop RP80 03.jpg
    View of the body of the vice showing the spherical indentations and t-slot

    Sagop RP80 04.jpg
    View of the fixed jaw showing the jaw retaining screws and tapped holes for mounding stops, soft jaws or fixtures. Also a view of the sliding jaw installed showing the slot where the clamp screw locates.

    Sagop RP80 05.jpg
    View of the clamp screw block. The ball on the bottom engages with the spherical indentations on the body of the vice and the pin locates in the t-slotted section.
    When the clamp screw is tightened the screw block pivots on the ball and the pin bares against the t-slot, this locks the block in position allowing the clamp screw to tighten the sliding vice jaw.

    Total weight of the vice is 12kg.
    Cheers,
    Greg.

  8. #38
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    And the rotating base used with the RP80 vice.

    Sagop Base 01.jpg Sagop Base 02.jpg
    A couple of views of the rotating base.

    Sagop Base 03.jpg
    The rotating base is made up of the outer ring which is clamped to the table, the floating inner ring which the vice locates on, and the two clamping blocks which lock everything down when the vice is in the required position.

    Sagop Base 04.jpg
    The vice is positively located on the floating section by two fixed blocks. By tightening the screw which bares down on two triangular blocks (circled left) the vice is forced against the locating blocks (circled right).
    Note that the clamping blocks have been removed in this picture, these usually remain in position. In normal use, the vice is slid into the base and the locating screw is accessed through a hole in the clamp block.

    Sagop Base 05.jpg
    View of the vice (minus sliding jaw) located on the swivel base. When in the required position, the two screws in each of the clamping blocks are tightened to clamp everything down.

    Sagop Base 06.jpg
    The outer ring is marked in four quadrants marked 0 to 90 degrees. The setting angle is read using the edge of the vice body as an indicator. In this photo the vice is set to 0 degrees.
    The screw at the 30 degree position is a preliminary clamp to lock rotation until the main clamping screws can be tightened.

    Sagop Base 07.jpg
    View of the bottom of the base, note the t-slot locating block slots, these are used to position the base so the angle of rotation can be read accurately using the scale marked on the outer ring.

    Sagop Base 08.jpg
    The vice is raised by 25mm when using the rotating base, this brings the height of the vice bed to 65mm. The total weight of the vice and the rotating base is 19kg.
    Cheers,
    Greg.

  9. #39
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    Thank you very much Greg.

    I greatly appreciate the effort you have gone to photograph and describe the workings of the Sagop.

    I'm still humming and haring about Chinese modular.

    Bob.

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