MAHO MH 500 W CNC232 aligning the table
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  1. #1
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    Default MAHO MH 500 W CNC232 aligning the table

    Hello,

    My name is Barry Meijer from the Netherlands.
    Recently I bought a MAHO MH 500 W for hobby purposes.

    img_20190213_214913.jpg

    Now I have some problems with the alignement of the table.
    It's hanging 0.2mm backwards and I do not know how tho solve this.
    After removing the table I still don't know how to fix it...

    I have a couple of manuals and documentation but no parts or service manual.
    I'm wondering if anyone willing to share a spare parts manual or service manual?
    When you need some manuals or something, I'm happy to help you.

    Kind regards,
    Barry Meijer

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    Hi Barry!

    I recently bought one myself and think i maybe have what you are looking for. Guess maybe you have already solved it? Otherwise let me know and i can send what i got. The are in German so you know. Myself i am looking for the CNC232 manual. I have all the manuals for the machine but not for the CNC.. So if you have that one i loved to have it!

    Regards
    //Mattias

  3. #3
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    Hi All,

    I have a somewhat related question to this machine.
    I'm interested in buying a similar machine with the CNC 232 control but I cannot find any documentation on the web.
    Would any of you be willing to share the CNC232 user manual or "Schulungsunterlagen" (language either English, German or Dutch)
    Or if that's not possible, what is this control capable of? (can it move XYZ simultaneously?)
    I read somewhere that the CNC232 is based on the Heidenhain 155 or 355 control, is that correct?

    Thanks in advance,

  4. #4
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    Hello,

    The Maho CNC 232 control is the same as a TNC 355 form Heidenhain.
    For this there is plenty of information out there.

    Barry

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    Your issue is mechanical! Do not believe that the control (232) is capable of tilting its working planes (newer controls can do this)
    The tilt of the table along the "Z" (Maho) axis is common as these machines age ...due to wear in the vertical slide owing to the weight of the table trying to tilt forward.

    Real solution is to disassemble and re-scrape the vertical ways of the slide to correct the wear,
    A simpler solution, would be to scrape the mounting surface of the table to correct the tilt....

    Have seen some owners shim the table bolt up surface to correct the issue...this IMO is a poor practice as it reduces the real contact between the table and the vertical slide...creating some space between the
    mating faces. Becomes less rigid and creates high stress on the parts where the bolts are tightened having no real support or contact.

    Cheers Ross

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    Thanks Ross!

    Re-scraping the Z-axis is what we do at the moment, because like you said, that is the only good solution.
    It's my first time scraping, and still learning a lot, but it has not disappointed me yet.
    The column is ready at the moment and we have a flatness within 6 micron over the hole meter lenght.

    I saw your thread about re-scraping your Deckel, that was a good help!

    cheers Barry


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