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    Re: CNC plasma tube notching w/ bendtech.
    #11
    The Bob Ross of MBN Bullnerd's Avatar
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    Quote Originally Posted by JGSturbo View Post
    I'd considered doing a bar feed but if the y axis can move 20ft its not needed. This would be the hobby version of the pro. Laser tube cutting.
    Oh yeah!Duh!I forgot you said Y axis.
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    Quote Originally Posted by TALON View Post
    did you use a special bigfoot camera or something ,you know all blurry could be a tree stump kinda thing .
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    Re: CNC plasma tube notching w/ bendtech.
    #12
    Millenium Member RickS.'s Avatar
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    I guess I should say not practical for ME, and most of us home builders on here.
    Come on now, how accurate do we really need to be?
    You make it sound like there's something wrong with the way most of us are notching.
    Well there is if your notched tubes have a knife edge.
    Only posted the pic to make that point.
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    Re: CNC plasma tube notching w/ bendtech.
    #13
    Bend-Tech Dragon Master
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    I'm a home builder at the core, I have a modest shop to get all this done in.
    You make it sound like there's something wrong with the way most of us are notching.
    Not sure where this came from, your first post questioned its accuracy etc. Next you post its not practical. Your basically shooting down my idea (which is fine, I don't mind explaining/discussing)...but its a little late when its already been shown to work.

    There isn't anything wrong with mill/saw notching (except when people leave thin ears, of which we agree), I just can't automate the process so this is my solution. Hobby level CNC machines are getting more feasible for the home builder as are the softwares needed. I'd estimate a machine to perform these tasks would cost around $500-1K as a standalone deal. As an add-on to an existing plasma table its even less. It might seem like a size-able investment but when it finished it will be able to cut your build time by a bunch.
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    Re: CNC plasma tube notching w/ bendtech.
    #14
    Millenium Member RickS.'s Avatar
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    I said it was a cool idea. I'm just not jumping up and down. Sorry.
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    Re: CNC plasma tube notching w/ bendtech.
    #15
    Bend-Tech Dragon Master
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    I'm really not here to sell people on my ideas, I'm just here to share my findings and possibility what I'm doing differently.
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    Re: CNC plasma tube notching w/ bendtech.
    #16
    Vendor yoshi's Avatar
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    Quote Originally Posted by RickS. View Post
    I said it was a cool idea. I'm just not jumping up and down. Sorry.
    This make ya jump up and down?

    EMI Plasma Tube Cutting Machine - YouTube







    Or if ya got the bucks.......

    http://www.youtube.com/watch?v=jfs8W...eature=related

    LT722D rect. tube high speed cutting - YouTube
    Last edited by yoshi; 12-13-2011 at 10:26 PM.
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    Re: CNC plasma tube notching w/ bendtech.
    #17
    Bend-Tech Dragon Master
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    Moving and rotating the tube, very interesting.
    Doing the square tube is neat as well.
    My youtube vid isn't as good.
    CNC plasma tube notching - YouTube
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    Re: CNC plasma tube notching w/ bendtech.
    #18
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    Quote Originally Posted by JGSturbo View Post
    ......
    So here it is - how to bring your notching wraps into a cad program directly (sort of).
    One just needs to make a new printer that prints and check the print to file option, then select a generic-ms publisher driver (XP).
    Now when you hit print, windows will ask you for a file name. My compture puts all the files in the main bendtech directory.
    Once you have the post script files, then you can import them into various programs to convert them into vector files, I used coreldraw to save them as dxf files.
    So now I can get from bendtech to my machine for notching and making bend ref. marks.
    Or you can export dxf files of the wrapper with Bend-Tech SE.

    .
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    Re: CNC plasma tube notching w/ bendtech.
    #19
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    Quote Originally Posted by RickS. View Post
    Here is an illustration showing how tubing should be notched. If you know how to notch (with welding in mind) you should never leave a knife ecge for a crappy weld. There would be nothing wrong with the fit shown in this illustration. Any other beveling of the tubes would be a waste of time.

    As I said, cool idea, But not practical IMO.
    Bend-Tech has a setting to calculate the internal and external wall thickness for its wrappers or just the external.

    The internal and external calculations together (it picks the correct side to use per degree) is the default setting. This will remove the "knifed edge" so the tubes fit up properly.

    .
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    Re: CNC plasma tube notching w/ bendtech.
    #20
    Bend-Tech Dragon Master
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    Ah nice to see the bendtech people here.
    Ok , I have se but I can't seem to find a wrapper export.
    Can it be done in file/export?
    While we're at it, any chance a full tube "wrapper" export?
    Maybe with bend references?
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