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  • Question about cheap mill vise?

    Never noticed this before, but on this cheap Chinese mill vise why is the fixed jaw higher than the movable one?
    About .090 difference. Makes it kinda hard to mill a plate held with both jaw plates on the outside ends of the jaws.

    [/IMG]


    Other quality vises I have the jaws are both the same height.
    Is this some kind of cruel joke or am I missing something?


    /
    Last edited by Willy; 10-23-2009, 01:29 AM.
    Home, down in the valley behind the Red Angus
    Bad Decisions Make Good Stories​

    Location: British Columbia

  • #2
    Things like that irk me. Here they are, trying to make a product as cheaply as possible, and they left too much metal on the high jaw.
    I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

    Comment


    • #3
      I think this might be a case of clone error. IE they cloned it, includeing the holes on the back of the movable/fixed jaw, but did'nt realise they had to be ground the same height to actualy be useful (I did'nt know what the holes on the back of the vise where for untill recently)
      Play Brutal Nature, Black Moons free to play highly realistic voxel sandbox game.

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      • #4
        Its a cheapo, just dont be afraid to hog a cut on the vice, its disposable tooling.

        Iv seen real dilldo heads drill through a part, through the vice and clear into the mill table. As long as you dont do that you wont be a dilldo head.

        LOL

        Comment


        • #5
          Perhaps you need a Kurt.
          Last edited by sidneyt; 10-23-2009, 08:03 AM.

          Comment


          • #6
            Try turning one of the jaws over. The holes may not be exactly centered (they aren't in the jaws for my Kurt).
            ----------
            Try to make a living, not a killing. -- Utah Phillips
            Don't believe everything you know. -- Bumper sticker
            Everybody is ignorant, only on different subjects. -- Will Rogers
            There are lots of people who mistake their imagination for their memory. - Josh Billings
            Law of Logical Argument - Anything is possible if you don't know what you are talking about.
            Don't own anything you have to feed or paint. - Hood River Blackie

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            • #7
              Looks like the same cheap vice that I bought from Busy Bee Tools.
              The adapter plate had to have both sides machined as they were out more than .010" the dowel hole was way off center.
              Once I fixed that I had to machine the bottom of the vice flat.
              When the vice was tightened the movable jaw would lift .015" or more depending how tight I tightened it. I disassembled the vice, the bottom slide has an angled extension that pushes against a half ball socket affair to pull the movable jaw down when tightened. Both of these surfaces were very rough. Once I cleaned them up the jaw now lifts about .0015 if I really tighten it. I will have to check if the jaws are the same height.
              They should just supply the rough castings and let us machine our selves.


              Terry

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              • #8
                Originally posted by terry_g
                Looks like the same cheap vice that I bought from Busy Bee Tools.
                The adapter plate had to have both sides machined as they were out more than .010" the dowel hole was way off center.
                Once I fixed that I had to machine the bottom of the vice flat.
                When the vice was tightened the movable jaw would lift .015" or more depending how tight I tightened it. I disassembled the vice, the bottom slide has an angled extension that pushes against a half ball socket affair to pull the movable jaw down when tightened. Both of these surfaces were very rough. Once I cleaned them up the jaw now lifts about .0015 if I really tighten it. I will have to check if the jaws are the same height.
                They should just supply the rough castings and let us machine our selves.


                Terry
                i got my green kurt type vise from busy bee and its perfect was right out of the box perfect, i guess some get by that are not to perfect but thats the pick of the litter i suppose..

                they are a really nice vice to i have used mine not only for milling but have also straighten out some parts on my buddys harly bad boy bike for him that other wise would have ment replacing the parts,for the 118 bucks the vice cost me i have thought about getting another one eventually,,

                Comment


                • #9
                  Originally posted by tattoomike68
                  Its a cheapo, just dont be afraid to hog a cut on the vice, its disposable tooling.
                  I had to do that with my Enco Kurt clone vise -- they don't stress relieve the castings, so it warps during machining. The bed was off by 6 thou from one guide way to another, and the base was out of parallel from the bed by 5 thou.

                  So I removed the moving jaw, and removed the fixed jaw and key, and decked the bed with a facemill with the base laying flat on the mill table.
                  "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

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                  • #10
                    Try turning one of the jaws over. The holes may not be exactly centered (they aren't in the jaws for my Kurt).
                    It won't matter if I turn it over, the jaw is still .090 too thick on one end.
                    If I lay a piece of stock across the jaws and use the jaw end plates to hold the material, (as they are pictured) it will not be parallel to the table.


                    Its a cheapo, just dont be afraid to hog a cut on the vice, its disposable tooling.

                    Iv seen real dilldo heads drill through a part, through the vice and clear into the mill table. As long as you dont do that you wont be a dilldo head.
                    Mike, I've only drilled into a vise once and that was a long time ago, never into the table though...at least not yet.
                    This piece of crap needs a bullet through it though.

                    Terryy_g, good eye, yeah it's a Busy Bee one alright. Now I now why it's called Busy Bee...you're going to be busy as a bee just to cover up all the f**kups that you just made with their sh*t for tools.
                    I had all of the same issues as you did with yours...Plus!

                    But just to show that I don't hold a grudge I think I'll take it fishing with me next time out...it can be my anchor.

                    Sad part is I have a Kurt but it's about five hours drive from here.
                    How does that saying go..."never a borrower or a lender be".
                    Home, down in the valley behind the Red Angus
                    Bad Decisions Make Good Stories​

                    Location: British Columbia

                    Comment


                    • #11
                      Well, these things aren't as precise as we'd like. But they make up for it with really lousy casting. . .

                      Here's my Grizzly version:



                      And, here's how I fixed it:

                      http://www.frets.com/HomeShopTech/Pr...iserepair.html
                      Last edited by Frank Ford; 10-23-2009, 12:31 PM.
                      Cheers,

                      Frank Ford
                      HomeShopTech

                      Comment


                      • #12
                        Frank, I was using the vise in this fashion with the jaw plates on the outside holes of the jaws.







                        It's a five inch vise like this one. If I didn't know better I'd say it came from the same factory as your Grizzly.
                        Normally I have the jaw plates affixed to the insides of the jaws but for this application I used the outside position.
                        In order to keep the workpiece parallel to the table I had to put a .090 shim between the movable jaw and the workpiece.
                        I think I'll take .090 off of the fixed jaw as a more permanent solution.

                        Nice fix on the broken casting, I'll file that one away for later as that will probably be my next issue!
                        Home, down in the valley behind the Red Angus
                        Bad Decisions Make Good Stories​

                        Location: British Columbia

                        Comment


                        • #13
                          I bought my mill from a nice chap and he sold me a groz vice not expensive but it was nice and low so I went fot ir.First time I used it it just kept winding the whole casting was seperated in two, talk about cheap castings. There was a big blow hole in it size of a a small tomato.Anyway wrote to them several times no reply whatsoever beware groz vices. Alistair
                          Please excuse my typing as I have a form of parkinsons disease

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                          • #14
                            Yea Id recommend just taking off 0.09" from the fixed jaw.. you might wanna find some cast iron to play with first to mess about with surface finish and see just what tool does best. or play around on the vise but only cut down to 0.04" for finish testing perposes (you know it will be the same material then)
                            Play Brutal Nature, Black Moons free to play highly realistic voxel sandbox game.

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                            • #15
                              Not really sure if the jaw is steel or cast iron, I'll have a better look when I get out to the shop later.
                              Doesn't really matter though as cast iron finishes beautifully.
                              I would think for strength it would be steel but I won't be surprised if it's cast.
                              Home, down in the valley behind the Red Angus
                              Bad Decisions Make Good Stories​

                              Location: British Columbia

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