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X2 Mini Mill CNC Conversion?

Discussion in 'MACHINE BUILD LOGS' started by MGP, May 31, 2012.

  1. MGP

    MGP United States Active User Active Member

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    I have a X2 Harbor Freight Mini Mill and want to use The CNC Fusion Conversion Kit can anyone give me a list of everything else i will need to get this complete? I plan on using the Mach 3 software. Thanks Mike

    ETA: I have a computer that i plan to use only for this mill.
     
  2. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    I'd be interested in helping you
    I have only done a sherline mill and lathe but I am planning a larger build for a zx45
    here also is a good site with some information on your x2
    http://www.hossmachine.info/
    jumpscam@yahoo.com
    steve
     
  3. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    and here is a review on the kit your concidering it looks nice if your not making your own
    http://blog.makezine.com/2011/12/06/kit-review-mini-mill-cnc-conversion/
    I used the original lead screws on the sherlines but for anything larger i'd go ball screw for backlash reasons the sherline needs constant backlash adjustment to hold accuracy.
    I can also help you find the softwares you need I have mach3 and for the most part everything else i use was free or very low cost.
    Illness is keeping me out of my shop so I'm bored and happy to help
    steve
     
  4. MGP

    MGP United States Active User Active Member

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    Would the 260 oz in stepper motor be enough to machine aluminum and delrin?
     
  5. woodguy

    woodguy Canada Active User Active Member

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    I use 276 oz in on my sx3 conversion for x and y - no problems machining anything I throw at it. Don't consider the motor in isolation through - some motors of much higher rating may not develop anywhere near their rated power because the driver electronics/power supply you have chosen are not up to it. Consider the whole solution.
     
  6. MGP

    MGP United States Active User Active Member

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  7. Que

    Que United States Active User Active Member

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    really like to see a nice write-up with pics as you do the conversion.
     
  8. MGP

    MGP United States Active User Active Member

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    It will be a while but i will do. Does anyone here run this setup and if so how is it? Thanks Mike
     
  9. woodguy

    woodguy Canada Active User Active Member

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    I used the cncfusion deluxe kit for the conversion of my sx3 and it was excellent. The finish on the parts was perfect and everything bolted in place. My only criticism is that the install video is very dated - he has moved on substantially from then. Shipped in 2 weeks as stated on the web site.

    Consult the cncfusion forum (access from his web site) for build threads.
     
  10. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    that probotix kit is way over priced and under powered the motors a 280 oz/in holding torque but the drivers and power supply are too small those drivers sell for 6.95 check ebay under stepper motor drivers list low to high when you hit $10.00 you allready passed these cards value . they are sucking in newbies with the 280 oz/in
    steve
     
  11. MGP

    MGP United States Active User Active Member

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    How about this kit i dont know anything about this stuff thats why i would like to buy something like this all done for me.
    https://www.probotix.com/index.php?view=product&path=22&product_id=118
     
  12. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    just an example this is stepper drivers at up to 50v 4.2 amps an opticaly isolated breakout board to protect your computer and 3.0 amp motors 287 oz/in. the power supply is 36 volts 10amps this setup is 4 times better than what you are looking at with the same size "holding" torque.
    http://www.ebay.com/itm/CNC-3-Axis-...812?pt=LH_DefaultDomain_0&hash=item3a70f352d4
    the probotix parts are all chinese also they are just sold here under their name
    If I searched more I probably could find better
    steve
     
  13. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    that kit was worse they are giving you 1 bigger motor and a tiny power supply 24v 6.5 amps sucks drop that site they are ripping off newbies by selling as kits and motor size nothing to power the motors
     
  14. kd4gij

    kd4gij United States Active User Active Member

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  15. DMS

    DMS United States Active User Active Member

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    Check out the packages from Kelinginc. #2 is comparable in price to the second package you posted, but with larger steppers, and a beefier power supply. The drivers are also bipolar drivers vs the unipolar drivers from probotix. The Kelinginc kit does not come with a parallel port cable, but those can be had pretty cheap, especially if you have a local surplus electronic store. The probotix kit doesn't look that bad, but a 24V 6A supply seems underpowered for 3 steppers. Of course, I got the largest servos I Keling had when I did my conversion, so I may be guilty of overdesign...


    http://kelinginc.com/CNCNEMA23Package3x.html

    2: CNC 3 Axis Stepper Motor Kit with 425 oz-in motor and KL-4030
    Bipolar Driver with 36V /9.7A Power Supply (110V/220VAC): $369

    (3) 425 oz-in stepping motors, NEMA 23
    (3) KL-4030 Drivers (3.0Amp 24-40 Volts, 1-1/64 microstepping)
    (1) 36VDC/ 9.7A Power Supply 110VAC/220VAC
    (1)C10 Breakout board
    (1) 5V power supply
     
  16. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    it may seem confusing but stepper motors are driven at much higher voltage than the motor says. up to 10 times higher. the higher the voltage the lower amperage the motor draws and you get more power out of the motor. in order to do this the motor controller has to be able to handle higher voltage and amps or you will have no power. its like dead batteries the motor will run but no power
     
  17. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    see the kellings are running 36v 9.7amp much better the torque rating is holding torque not running torque running torque increases with higher voltage and amps these same motors at 48v 8amps will be way more powerful
    the power comes from the power supply voltage and driver voltage/amp limits
    also the faster a stepper turns the less power it has
    the direct drive ballscrew kit you are looking at gets the most power out of the motors
    steve
     
  18. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    the kelling is a good buy at a fair price
    steve
     
  19. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    I'm planning a zx45 mill with 2 1600oz/in for x and y and a 4200oz/in for z
    with 3/4 ball screws you cannot overbuild
    this mill is going to base price out 3 axis at $3500 including the new mill
    i put the parts list and part numbers in a post i'll find it if you want
    steve
     
  20. jumps4

    jumps4 Global Moderator Staff Member Active Member

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  21. MGP

    MGP United States Active User Active Member

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    Will they build a ready to run setup with this kit? Thanks Mike
     
  22. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    I may come across a bit overbearing but i dont mean to be
    to explain mach3 is dependent on the computers internal clock and windows controls or at least affects the clock speed. it is not a set speed but shared between programs. that is why mach3 says to not run anything else when running mach3. the speed that mach3 can run stepper motors is very limited due to this. so the faster you try to move the motor the greater the chance the motor will miss steps. when steps are lost mach3 has no feedback from a stepper motor so the accuracy drops for every step missed without correction. that is the reason for wanting larger motors and faster ballscrews the motor requires less speed to travel the distance required using a slower clock speed. and that decreases the odds of missed steps. the problem is not mach3 but windows and the limited speed of the parallel port. the only way around this is to use a kflop or smooth stepper type of controller instead of a breakout board and printer cable. these cards are dedicated cpu cards with there own clocks they recieve only the gcode from mach3 and process all the step and direction signals internally windows cannot interfere or disrupt this signal ( you could play a video game while the program is running ) this all happens at speeds way faster letting you drive smaller steppers at higher speeds for gearing or pulleys to increase torque.
    so my point was you save money if you go direct drive large motors and ball screws compared to small motors requiring belts pulleys and a smooth stepper to get any speed out of them without errors.
    I hope that makes sense
    steve
     
  23. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    you will have to wire your own machine if you build it. the kits are just the parts I have seen prewired controllers but they still require you to wire limit switches and the motors and they are pricey
    wiring is not really that hard it takes care and double checking but it's not really that complicated i have a good video i'll find you about wiring the motors and everything if you like
    steve
     
  24. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    i started with sherline mill and lathe
    your x2 is a much better machine with more power a great way to get into cnc without breaking the bank

    DIGI0071.JPG DIGI0074.JPG 11.jpg DIGI0081.JPG
     
  25. MGP

    MGP United States Active User Active Member

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    That would be great! How many limit swithes do i need im thinking 6? Thanks Mike
     
  26. MGP

    MGP United States Active User Active Member

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    How about this kit
    http://www.ebay.com/itm/3Axis-Nema-...118?pt=LH_DefaultDomain_0&hash=item1e627474c6
     
  27. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    yes 6 is normal 3 of them serve dual purpose as home switches
    I'll start looking for the video it was pretty good
    you will have to have a volt ohm meter but they are cheap
    steve
     
  28. MGP

    MGP United States Active User Active Member

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    What about this kit?
    http://www.ebay.com/itm/3Axis-Nema-2...item1e627474c6
     
  29. jumps4

    jumps4 Global Moderator Staff Member Active Member

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    here are the videos this guy at hoss machine is good and speaks in laymans terms
    one thing that needs to be said is check the voltage from the power supply they are adjustable I would do it before wiring anything and set all the switches on the cards. wire the cards and double check everything again before powering up. the card settings I can help with once you have them and their data sheets
    I'll go look at the ebay item you posted and shop a bit for you what is your limit on cost for a set including power supply, controller(s), breakout board and motors give me a max and i'll help you find the most for the money
    steve
     
  30. MGP

    MGP United States Active User Active Member

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    I would like to stay around $300 max $400 Thanks Mike
     

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