DIY torch height control


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  1. #1
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    Question DIY torch height control

    Gentlemen is there a DIY out there to build my own thc for my plasma table?

    Really don't have the $$$ for the commercial units

    Any help or direction is greatly appreciated

    Mark

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    Sir,

    What do you want the THC to do? If you need initial height sensing, it is somewhat complicated; if you just need auto height control during cutting, the system is simpler. I made such a system 18 years ago.

    Regards,
    Jack C.



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    Sir I would be thrilled with height sensing during the cutting.



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    Quote Originally Posted by jcc3inc View Post
    Sir,

    What do you want the THC to do? If you need initial height sensing, it is somewhat complicated; if you just need auto height control during cutting, the system is simpler. I made such a system 18 years ago.

    Regards,
    Jack C.
    Jack,

    Can you please PM the auto height control solution that you mentioned please?

    Thanks
    DZstar



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    Default

    or better still - post it here for everyone :-)



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    Default Torch height control

    Gentlemen:

    Attached are pictures, a schematic, and explanation of a torch height control made some time ago.

    Regards,
    Jack C.

    Attached Thumbnails Attached Thumbnails DIY torch height control-dsc00678-jpg   DIY torch height control-dsc00677-jpg   DIY torch height control-november-26-2007-medium-jpg   DIY torch height control-dsc00676-jpg  

    DIY torch height control-dsc00675-jpg  
    Attached Files Attached Files


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    Default

    Thanks Jack



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    Default question

    Kind Jack c. your system thc puo' to use itself com mach3, which is the logons to use? Salutes and thanks



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    http://www.control-service.com/arg/como.htm
    I bought this one for $350.00. it works o.k. for bigger pieces. it doesn't have IHS.



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    Quote Originally Posted by jcc3inc View Post
    Gentlemen:

    Attached are pictures, a schematic, and explanation of a torch height control made some time ago.

    Regards,
    Jack C.
    Jack,
    Your pics are very clear when enlarged. But the schematic cannot be viewed in detail, as enlarging it, just smudges it out. Do post a clearer pic of the schematic if you dont mind.
    Thanks
    Conrad



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    Default THC schematic

    Gentlemen:

    Attached is a picture of the THC schematic with one correction, added a connection to -12V not shown earlier. Please note the attached file with the pictures.

    Regards,
    Jack C.

    Attached Thumbnails Attached Thumbnails DIY torch height control-thc-ckt-jpg  


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    Default THC

    I was unable to get a decent picture off this most recent post. Email me for a good JPEG.

    jccinc-at-owc-dot-net

    Regards,
    Jack C.



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    I built one using the schematics in the Mach user manual. It's been working great for several months. It should be adaptable to any machine that already has Z axis control.

    Jon



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    Default English Version

    Quote Originally Posted by MAS View Post
    http://www.control-service.com/arg/como.htm
    I bought this one for $350.00. it works o.k. for bigger pieces. it doesn't have IHS.
    Is there a english version???



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    Quote Originally Posted by Fiero Addiction View Post
    I built one using the schematics in the Mach user manual. It's been working great for several months. It should be adaptable to any machine that already has Z axis control.

    Jon
    just looked at both the mach 3 install/config and user manual and didn't see such a thing can you give a few more hints about where you found it?

    thx!



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    Default Mach 3 THC

    Here's the direct link to the document from the Mach Support site:
    ftp://machsupport.com/Docs/Using3Mill.pdf
    Section 12.2 is called Torch Height Control Interface and contains schematics by Tom Caudle.



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    Smile Hope your help

    Hi Jon,
    I saw THC-circuit ( section12.2) on Mach manaul same as you but I didn't understand how to link with plasma machine. I don't know what is input or output for this circuit. I need to use this circuit with the 1000 hypertherm. I don't know how to start. I am not good at electronic circuit. If you can help me,I will appreciate you

    Mongkol



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    Default

    I don't mean to be rude, but if you're not good with electronics and you can't figure it out from the schematics then you should probably not be building your own THC.



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    Smile THC

    Jon,
    Could you do the hardware board from schematics? If you are ready to do,pls advise me for this price.

    Mongkol



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    The desire to have something cheap does not necessarily translate into the ability to build it.

    It's getting to be a harder decision to build or buy with the introduction of our New MP3000 base controller that can be upgraded with a fully functional Digital Torch Height Control (3 generations newer than the circuit I gave to Art for the MACH manual) It's priced competitively with the alternative of a separate Breakout Board and Analog THC, and it only uses one parallel port and one serial port for everything.

    Plug-in DTHC Module:



    Here are screen shots of our custom MACH screen for the new DTHC and a shot of the CUT PROFILE popup that has definable parameters for doing precision cutting.

    TOM CAUDLE
    www.CandCNC.com

    Attached Thumbnails Attached Thumbnails DIY torch height control-mp3000-thc_screen-682-png   DIY torch height control-mp3000-thc_screen-thcpopup-684-png  


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