Advice on Wantai Motors
 

Any advice on the suitability of these motors and drivers? My very uninformed reading of the specs on the motor is that they are close to the favored Oriental Motor at about half the price (or even less when you consider the driver is included.)

Thoughts anyone?

Thanks

Joe

http://cgi.ebay.com/ebaymotors/2-PCS...Q5fAccessories

The motors are rated at 20mH inductance. 32 X SQRT(20) = 143VDC. The stepper drivers are only rated at 45VDC. I wouldn't buy the motors and drivers without some serious testing first. From a casual glance, I think that you would be disappointed.

Thanks, that is the kind of expert advice I needed. (You can tell I am a stranger (woodworker) in a strange land (electronics) here).:)

Joe

Aaahh well R8000 wasted wow that was really quick to be honest. Will let you know what happens when I have them. Pitty I did not find this topic sooner.

Motors x 4 : http://www.wantmotor.com/ProductsVie...&pid=75&sid=80
General Specifications:
Step Accuracy : +-5%
Temperature Rise : 80°C Max
Ambient Temprature Range : 20°C ~+50°C
Insulation Resistance : 100MΩ Min.50V DC
Dielectric Strength : 500V AD 1minute

Electrical Specifications:
Model number : 85BYGH450D-007
Step angel : 1.8
Motor Length (mm) 94
Voltage Rated : 6.4V
Current Rated : 2A
Phase Resistance : 3.2 Ω
Phase Inductance : 15mH
Holding Torque : 4.4 N.m / 873oz-in “as per forum suggestion anything bigger than 1000oz-in should rather consider a servo. So I made sure to keep it between 800 and 1000.
Lead Wire : 8
Rotor Inertia : 1.7 kg. c㎡
Motor Weight : 3kg

Step Motor Driver: http://www.wantmotor.com/ProductsVie...&pid=75&sid=82
Model Number : 2D-2H086MB
14 selectable resolutions
Supply voltage up to +80VDC
Suitable for-2-phase and 4-phase motors
Output current up to 5.86A
Dip switch current setting 8different values
Optically isolated input signals
Pulse frequency up to 200KHz
Automatic idle-current reduction
Small size (107*97*48),Weight:1KG

@all,

if you want to go for a cheaper route then search in the forums, some people have successfully used the motion king motors (50usd each, not including transport) with cheaper gecko drivers, or even the drivers that motionking also is selling.

In reality, buy something that is 'approved' here at mechmate and tested by people here in the forum, or make sure you know what you are doing, but don't go cheap by buying something at ebay!

I strongly suggest check the website www.pmdx.com they have some nice offers, not a lot more expensive then the ebay offers, but more reliable and tested.

Ries
PS: I don't want to sound negative here, or judge your knowledge, I just want to prevent disapointments.

I second Ries's suggestion. I got stuck at the moment because I misjudge my ability :(