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  1. #1
    Join Date
    Aug 2006
    Posts
    3

    Question About CNC And Software/Hardware

    I am very new to this so I apologize if I come off ignorant in this area, please bear with me. My company has a HL-90 Tracing System, that is part of a Koike Aronson IK 1200J Cantilever Coordinate Drive Optical Trace Cutting Machine. We want to get CNC set up as everything is manual right now. I've talked with the company and they said the following:

    'After we can determine what we are working with we can give an estimate of what will be required to perform the operations you require. You will be looking in the neighborhood of about $16000.00 for the CNC, Interface, Encoders, Basic Software (included free), Isolation Modems, and cables. Plasma select, and any other options will be additional. I have included the software pricing and options list. We will include the basic software at no additional charge if the D11 (Picopath) control is purchased from Koike. This will save about $2900.00.'

    My questions are:
    1. Is that a fair or accurate price?
    2. Is a specific companies hardware proprietary to their software and whatever else needs to be done?
    3. Is this something our company could do ourselves and cut the price dramatically?

    Any information would be greatly appreciated.
    Thanks.

  2. #2
    Join Date
    Dec 2005
    Posts
    3319
    Sure. You can get a start into the research in what it takes to do a DIY retrofit from the following:

    CNC Dictionary
    http://www.cnczone.com/forums/showth...662#post186662
    http://www.thewarfields.com/MTCNCDictionary.htm

    Great NC controller thread - NC vs PC’s
    http://www.cnczone.com/forums/showth...852#post182852

    Lathe retrofits
    http://www.cnczone.com/forums/showth...lathe+retrofit
    http://www.cnczone.com/forums/showth...lathe+retrofit
    http://www.cnczone.com/forums/showth...lathe+retrofit

    Research
    http://www.cnczone.com/forums/showth...9&page=1&pp=15
    specifically post #15

    Electronics books
    http://www.forrestmims.com
    or
    http://www.amazon.com/gp/product/pro...lance&n=283155

    The "holy grail" of electronics info for the DIY CNC neophyte:
    http://www.amazon.com/gp/product/052...lance&n=283155

    Web-based books on electronics:
    www.ibiblio.org/obp/electricCircuits/

    Why parallel ports may have limitations at doing CNC control::

    See post #5 in the following thread:
    http://www.cnczone.com/forums/showth...852#post181852

    LPT Port limitations wrt driving steppers and servos, especially posts 16 thru 19
    http://www.cnczone.com/forums/showth...255#post186255

    Linear scales;
    http://www.practicalmachinist.com/cg...3;t=003181;p=0

    Ball screw basics:
    http://www.cnczone.com/forums/showthread.php?t=20748

    Ball screw treatise, the hard core stuff:
    http://www.cnczone.com/forums/showth...?t=8813&page=1


    PID tuning
    http://www.cnczone.com/forums/showthread.php?t=20927

    Capacitance post
    http://www.cnczone.com/forums/showpo...24&postcount=5

    Daisychaining ATX power supplies:

    http://www.cnczone.com/forums/showth...015#post142015
    http://forums.bit-tech.net/showthread.php?t=108208

    Linear P/S design/construction
    http://www.campbelldesigns.com/files...ply-part-1.pdf

    How to properly phase a transformer in linear p/s:
    http://cnczone.com/forums/showthread.php?t=14821&page1

    Step to analog converter
    http://www.skyko.com/products/

    Servo amp P/S design
    http://www.elecdesign.com/Articles/A...7635/7635.html

    Servo motor , servo amp, powersupply sizing for CNC
    http://www.rutex.com/pdf/Mystique2.pdf

    Bearing literature:
    http://www.bardenbearings.com/literatr.htm

    http://www.timken.com/products/bearings/catalogs/

    http://www.jp.nsk.com/app01/en/catal...gi?ec=bearings

    Get the NSK E1102 catalog for starters

    Press fits:
    http://www.eng-tips.com/faqs.cfm?fid=1230

    Motor torque info/defininition
    http://www.merkle-korff.com/formulas.asp#con

    What gage wire to use:
    http://www.cnczone.com/forums/showthread.php?t=17350
    http://www.cnczone.com/forums/showth...480#post136480

    Servo vs Stepper:
    http://www.cnczone.com/forums/showthread.php?t=17419

    Simply stepper info:
    http://www.parkermotion.com/catalog/catalogA/A12.pdf

    Stepper reverse engineering:
    http://www.doc.ic.ac.uk/~ih/doc/stepper/others/

    Stepper sizing:
    http://www.cnczone.com/forums/showthread.php?t=17707

    Small stepper P/S
    http://www.campbelldesigns.com/files...ply-part-1.pdf

    G code parts counter
    http://www.cnczone.com/forums/showthread.php?t=22223

    Haas TNC explanation
    http://www.haascnc.com/customer_serv...he/96-8700.pdf

    Be advised that a plasma cutter has some unique challenges over and above those of other CNC's due to the RF problems endemic to the system.

  3. #3
    Join Date
    Aug 2006
    Posts
    3
    Thanks, this is great information, I'll be visiting this site often.

  4. #4
    Join Date
    Jun 2005
    Posts
    164
    Hi tarasan
    First get a number of quotes to determine if Koike are giving you a good deal. In the end the machine is just a skeleton to convert to CNC. You don't have to use Koike just because they made the machine. Since this is a company machine you need to do some cost justifications to work out what potential savings you can make by CNCing it vs. the steep learning curve to be able to DIY.

    If your machine is like what I think it is (we had an optical tracing doo-dad on a flame cutter at a company I used to work for) all you need is to tender the manufacture of a control box that can be driven by Mach or some other PC based controller. Basically all you need to do is to spec the current motors and encoders (or buy new) so appropriate drives are selected. A clued up industrial sparky could build it for you and I wouldn't mind betting there would be a few guys in these forums who have built a control box for a plasma/flame cutter who would be willing to share their experiences with you and maybe even give you some specs on how they built theirs.

    Cheers

    Derek
    <insert witty comment here>
    derekj308

  5. #5
    Join Date
    Aug 2006
    Posts
    3
    Hi derekj308,

    Thanks for your reply. I don't mind doing the DIY but as you said the cost justification for my employers will be the big thing. In the end will I end up costing just as much if not more and screwing the whole thing up in time and wages as if I had a company do it.

    The machine is exactly as you say so I'll try to see what I can do. Unfortunately my boss is wanting to do this at a slow time when he doesn't have a lot of money coming in so this maybe an after work project to try and help him.

    On an unrelated note I'm curious if anyone has a preference of software and why. Currently I am trying 3, SolidWorks 2005, AutoCad 2007 and Autodesk Inventor 10.

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