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  1. #1
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    Sep 2017
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    Stepper driver

    Hello
    I buy used ball screws 2005 with stepper motors oriental pk299-e4.5b. About stepper: 8 leads, 4.5 A, 2.8 V, 0.66 Ohm, 2.5 mH (each phase). On back shaft of motor was hand made "encoder", photo: https://imgur.com/a/yShHP. Motor driver is 1421.012.04, 1421.017.04, nothing more is written on driver, google search found just: 1421.012.04, 1421.017.04 Circuit Board T63918

    So I want use this steppers as stepper motor. So I need your help to choose stepper motor driver and power supply for them. Budget for stepper drivers is not big, so Gecko is too expensive.

    Stepper motor wiring options: https://imgur.com/a/EQoKp Which wiring you recommend? Now is Bipolar parallel.

  2. #2
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    1397

    Re: Stepper driver

    :cough: If you can solder an electronics kit...
    James hosts the single best wiki page about steppers for CNC hobbyists on the net:
    http://www.piclist.com/techref/io/steppers.htm Disagree? Tell him what's missing! ,o)

  3. #3
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    Re: Stepper driver

    Hello, James. Yes, I can solder electronic kit..
    Maybe you can help my. Voltage for this stepper is 50 VDC? (32*SQRT(2.5)=50.59V) Is this calculation is good? Because 2.5mH is in each phase, or I have to sum them?
    Another question is about driver. Stepper is 4.5 A max, so maybe to use TB6600 driver? It is 40 VDC max and 4 A max.

  4. #4
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    Re: Stepper driver

    Voltage is just a requirement for top speed. Higher voltage equals faster movement up to a point which is based on the inductance. 50 volts gets you the top speed.

    Amperage gets you torque. The TB6600 does NOT deliver 4 Amps, except in short bursts. Using the max rating of the driver is a lie, and a damn annoying one. If you run a 6600 at 4 amps it will overheat and shut down... if you are lucky. Otherwise it will fry. So it doesn't really deliver 4 amps "max" it is 4 amps /peak/, which is not the same thing at all.

    I would suggest a well made, real (not knock off) THB6064AH driver, which will provide 50 volts and 4 amps continuous output. Not peak, continuous. Actually, you can get 5 amps out of them with a really really good heatsink and a fan on it.
    http://www.cnczone.com/forums/open-s...ml#post1176007
    But they are rated for 4, with a good heatsink.

    I suggest a kit because I make one:
    6064: 4AMP Stepper Motor Driver Kit. massmind

    Obviously I'm biased, and you can always find something cheaper on eBay, from China, but it won't work as well because the components will be inferior quality.
    https://www.youtube.com/watch?v=3Zva2QvXRFA

    You can ask multiple people on this site and they will vouch that my driver kits are top quality, well made, and easy to repair ($10) if you do happen to fry the chip. There are other options, of course, GeckoDrive is excellent, there are some people who have had good luck with the, um, DM8... something. Can't remember.
    James hosts the single best wiki page about steppers for CNC hobbyists on the net:
    http://www.piclist.com/techref/io/steppers.htm Disagree? Tell him what's missing! ,o)

  5. #5
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    Re: Stepper driver

    Thanks! About TB6600, Ok, I will not buy it About THB6064AH, nice that you make kits, to solder it I dont see any problems, but you are from USA, and I am prom Europe, so 4 drivers X 35 = 140 USD, I have to pay 21% taxes, then about 30 euros for customs declaration plius shipping, so sum of 4 drivers without shipping is about 200 USD. Too expensive for now.
    Maybe you talk about DM860A? 7.8A; 24-80 VDC


    Coming back to THB6064AH, CNC THB6064AH Two 2 Axis 64 Micro-step 4A Stepper Motor Driver MACH3 Biaxial | eBay for cooling I would use 100mm 220V fans. What do you think?

  6. #6
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    May 2005
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    1397

    Re: Stepper driver

    You can get basically the same kit from Luc in Europe:
    THB6064 kit pricing
    James hosts the single best wiki page about steppers for CNC hobbyists on the net:
    http://www.piclist.com/techref/io/steppers.htm Disagree? Tell him what's missing! ,o)

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