Wantai Nema 34 stepper motor kit. Problems.

[Jussi_2]

I bought this set from Ebay:

3 PCS Wantai Nema 34 stepper motor 85BYGH450C-012 ，with 1600oz-in dual shaft i
3 PCS Wantai Stepper Driver DQ860MA with 80VDC,7.8A, 256 Microstep,
3 PCS 350W,60VDC,5.9A Power supply,
1 PC Breakout Board,
1 PC DB25 Cable.

I have a lot of difficulties to get it work.. Does anyone have this same kit? I should have everything wired correctly, it wasn't easy as i got 3 different wiring diagrams. I use my Ibm thinkpad t41, and mach3. I got this set work for short moment, and without a reason it stopped working again.. It works super slow speed now.. For a moment it was "fast". Sherline 1/2 pulse mode is doing some problem i think. Sometimes when its on, it works good, and sometimes need to change off to get working..
So if anyone have this same kit, I would be happy to get some tips. Thanks. I have tried so many different settings.. tried many different set from driver (sw1, sw2 etc.)

I am building a cnc machine with these dimensions: X=3000mm Y=2000mm Z=1500mm. I use pro rack and pinion sets from cncrouterparts.com..
Also 2,2kw watercooled spindle motor.

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[Jussi_2]

3 days I have spent to this set, and still wont work... I have check multiple times all the mach3 settings... wiring should be good.. i just don't know anymore what can be wrong.. maybe the bob is broken?

Photo shows how I have connected this set.. Does anyone owns a steppermotor set from wantai?

[begu]

hello jussi

i have bought the same set and have received days ago, now i`m also searching for right connection diagram, because the connection diagram from wantai is different from that what i have found from google days before delivery received me....i`m confused how to connect the BOB with stepper driver to run with mach3.....
please..have you a solution for your problem until now and can you help me???

would be great for help me

many thanks

guenther

[Khalid]

What it would be better you have posted prior to purchasing those beefy motors. Nema23 ~380Oz-in motors would be enough to run your X3.

[HammerM0N]

Hi,
I have the same kit,
and encounter in some issues
I did get my motors to run fast , but they work strange in low RPM ( 200mm/s 100mm/s )
if you have solved this - i'd appreciate if you can share some info
Many Thanks !