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  1. #13
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    Quote Originally Posted by dleroi View Post
    Phil,

    I had this on my X2, also. I just fixed it, yesterday. Mine was off by about 5 thou from the front of the table to the back. I loosened the three screws that hold the column pivot-plate to the base, tilted the the column back and put a shim under the pivot-plate. I used a 0.002" feeler gauge for a shim and got lucky the first time. Now, it's under half a thou, front-to-back.

    - Don
    Fantastic!!!! Thanks for the idea Don...

    I'll see if I can take a shot at that tonight.

    Phil

  2. #14
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    [QUOTE=twocik;371438]"I used a 0.002" feeler gauge for a shim and got lucky the first time.
    Do you have any pictures of what you used ? Kind of new to machines and tooling. "


    Here are a couple of shots. The feeler gauge is an automotive type that I've had for years and I used it because I didn't have any shim stock. You may be better off just buying shim stock - I assume you can still get either of these at most auto parts stores. If you know how far it's off over a given distance, you can calculate how thick a shim you need to get in the ball park.

    Of course, the photo that shows where to put the shim assumes the column was tilting forward.

    - Don
    Attached Thumbnails Attached Thumbnails FeelerGauge.JPG   ColumnShim.jpg  

  3. #15
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    Quote Originally Posted by twocik View Post
    Hi Phil
    I'm experiencing this right now as we speak with my X1, little brother to the X2.

    I've spent almost 10 hours now trying to figure out my Z axis issues, but only got a little bit of improvement. I can't go all the way up without the motors stalling, not unless I loosen the gib screws a little more. The problems is when I loosen them too much the head starts to make a funny deep sloppy vibrating sound when jogging down and while jogging down if I push up on the head the dovetail comes off the track. It's a PIA to get them perfect and having figure it out yet.


    Now I had an idea with adding a longer gib plate to the Z head. This would extend a little more on the top and bottom, allowing maybe a little more support, but haven't tested it yet.




    Here's the part and if you look closely inside the ring, you'll see a layered looking surface (not the way it is suppose to look at all).

    I wish they made something like that compression spring for the X1, I feel like I own the red headed step child. I'm most likely going to make my own to hold me over until I decide on my new mill (looking into the Tormach).

    You can use a gas spring like 4138T56 from McMaster to build your own.

    Also, check the factory gib - they are normally junk and should be replaced.

    Aaron

  4. #16
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    Thank you, had know idea what a shim was. It's a little different on my mill (X1), I used a machinist square to level mine column.


    "Also, check the factory gib - they are normally junk and should be replaced."



    I took the machine apart last night for the second time and notice that there must be some sort of bend, bind in my column ways. Make a long story short it was the factory gib plate, along with a few chips stuck inbetween the gib plate and way. I can now move up & down with no problems, well not all the way up, yet. I need to look into a stronger stepper or some sort counter weight system.

    Phil not sure if you got your mill up and running again, but if it helps try laying the column (you'll need to unscrew it from the base, not the whole mill) on it's back side for adjusting.

  5. #17
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    Quote Originally Posted by pastera View Post
    You can use a gas spring like 4138T56 from McMaster to build your own.

    Also, check the factory gib - they are normally junk and should be replaced.

    Aaron
    Aaron,

    can you post a link to where we can obtain new quality gibs?

    Thanks

  6. #18
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    Tonight, I measured how much my 'Y' tram was off.

    From the front rail on the table to the back rail on the table (about 3 inches) it's off by 7 thou.

    Phil

  7. #19
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    Quote Originally Posted by BeerFizz View Post
    Tonight, I measured how much my 'Y' tram was off.

    From the front rail on the table to the back rail on the table (about 3 inches) it's off by 7 thou.

    Phil
    Do you have a .003 shim?

    - Don

  8. #20
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    I sure do. Is that what it calculates out as?

  9. #21
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    Quote Originally Posted by BeerFizz View Post
    I sure do. Is that what it calculates out as?
    That should be pretty close, but it may take some trial and error because it depends on how far back you place the shim(s) how much you torque the bolts, etc.

    - Don

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