Tell me about drivers and steppers

[SwampDonkey]

Hello to all,

Im in the process of gathering parts for my LMS SX2 conversion to CNC. Its time for me to look at some drivers and steppers that would work on my machine.

I would really like some advice, info, warnings, experience, etc from you guys. Anything you could add about a particular brand or model would be awesome.

Currently Ive nailed down the type of steppers I'll get, but not the particular brand. I feel comfortable with 380 oz for X and Y, with a 400oz on the Z axis.

And thats about as far as I am as far as I am

Thanks!

Edit: Oh and being able to control the mill with a fob or game controller for "manual" milling is a must. Im not sure if that's something common, standard, or rare.

[HorridHenry]

This is your second post on the steppers and drivers.

Advice was given there.

[SwampDonkey]

This is your second post on the steppers and drivers.

Advice was given there.

Correct, but it was thin on specifics.

[hoss2006]

This is the package you should consider for the mill, easy to wire and great performance.
CNC Stepper Motor Kit: , Stepper Motor, Servo Motor, Power Supply Automation Technology Inc
If you use Mach 3 for the controller any number of pendants or controllers can be used for
"manual" milling like the shuttle pro or xbox 360.
Hoss

[SwampDonkey]

This is the package you should consider for the mill, easy to wire and great performance.
CNC Stepper Motor Kit: , Stepper Motor, Servo Motor, Power Supply Automation Technology Inc
If you use Mach 3 for the controller any number of pendants or controllers can be used for
"manual" milling like the shuttle pro or xbox 360.
Hoss

Looks perfect! Thanks.
If it has your blessing, its on the table. The last thing I want to do is buy something I will not be able to use, or not use for my purposes.

[hoss2006]

Yes it's a proven great performing package for the X2 in it's various forms, you should be quite happy with it.
Hoss

[SwampDonkey]

Yes it's a proven great performing package for the X2 in it's various forms, you should be quite happy with it.
Hoss

Good deal, im sure I will. Say, Ive noticed several people doing similar builds running a larger 400oz or so motor on the Z axis. Is this something I should consider?

Also, Ive ordered my CNC fusion kit but held off on the "oversized ball service". Is this something I should do? I do want the maximum accuracy out of my machine.

Thanks

[hoss2006]

381oz/in is plenty for the z, don't know what 400 they are running but to get good performance
the motors amperage and voltage have to be a good match with the driver which the
381 and g540 are, hooking up a higher torque motor doesn't mean you would necessarily
see any advantage. more here.
G0704 Electronics
yes get oversized balls and zero backlash couplers from cncfusion, that's the only option
he should be offering IMO.
Don't want a lot backlash if you can avoid it.
Hoss

[asifjahmed]

I just did an SX2 conversion (see my photos thread) and used the Keling 381 oz/in NEMA 23s from Keling. They are working out great! I got the package with the G540, but opted for the 48v/12.5A power supply so that I can add a 4th axis in the near future by simply adding another motor (gecko and power supply are already up to the task).

I also got a smoothstepper board, and am very pleased with it.

If you have any more specific questions, feel free to ask. I literally JUST got done doing one of these conversions.

[Mad Welder]

Hello to all,

Im in the process of gathering parts .............I would really like some advice................... Oh and being able to control the mill with a fob or game controller for "manual" milling is a must. Im not sure if that's something common, standard, or rare.

Hi there SwampDonkey welcome to the new world of CNC'ing and as Hoss has already pointed you in the right direction you won't go wrong....me I'm using the Keling products and the Digital stepper drivers are fab and as you're are asking for feedback I can recomend them...... and check out photomankc's build thread here http://www.cnczone.com/forums/bencht...onversion.html and especially his videos of using the PS2 game controller to operate his axis jogging too...


hope this is of some help to you...

[SwampDonkey]

Hi there SwampDonkey welcome to the new world of CNC'ing and as Hoss has already pointed you in the right direction you won't go wrong....me I'm using the Keling products and the Digital stepper drivers are fab and as you're are asking for feedback I can recomend them...... and check out photomankc's build thread here http://www.cnczone.com/forums/bencht...onversion.html and especially his videos of using the PS2 game controller to operate his axis jogging too...


hope this is of some help to you...

Thanks, I'll head over to check it out.

Ive been looking at the G540 and the Keling digital drives, but what are the differences between the two as far as performance goes?

[Mad Welder]

Thanks, I'll head over to check it out.

Ive been looking at the G540 and the Keling digital drives, but what are the differences between the two as far as performance goes?

I’m no electronics expert and I’m using the Keling Digital drivers as I said, but from my understanding the only difference between the drivers is a person’s preference as the most vital specifics you should be looking at is; are your drivers supplying the correct output current to supply the required input current to the motors?….

When it comes to the hardware selecting process for your CNC project, a simple idea here is to work backwards……so bear with me here….

The first and “most important” thing to consider is what material will you be machining? (Aluminium, Plastics, Steel etc…) and by doing a little bit of research on the net you will see the torque required to adequately control the correct Feeds and Speeds for each machining job……. this then will suggest to you the torque required from the axis driving motors (Stepper or Servo) to output that correct machining torque…..now that may sound a little confusing but if someone is building a CNC machine and has the incorrect motors and drivers they may state that the products are useless ( but in actual fact the hardware is perfect but simply not up to the machining jobs that they’re being used for) so once you are aware of that…….

So with that said….What torque do you require?...This will dictate a selection of Stepper/Servo motors for you to choose from…..Once you choose your Motors your next thing is to find a suitable Driver to “output” the correct current required by the motors, (here you may find this confusing but all you need to do here is to read the current specs of a particular suppliers products, and most suppliers will give you free access to the PDF specs ) and once you have a suitable Driver selected your next thing is to choose a suitable Power Supply to output the correct Voltage and Amperage to supply power to the Driver…..

An example here is if an inadequete Driver is used even thought you may have chosen a high torque motor, but if the driver's output current is lower the motor will have a reduced torque output also....

Now also the new Digital Drivers are fantastic for quietness and smoothness at mid range running….

I know this is a kinda long post but once you get your head around it, it’s really not that hard to understand…

Hope this helps and explains the axis motor choosing process a bit better for you and I hope I haven't confused you more and I know you asked which product is better than the other (Keling Vs Gecko) but once the correct specs are adhered to and like for like products are compared, from my understanding there really isn’t any difference…