[onocyclone]

Thanks, I'll get the pictures of the steppers.

[onocyclone]

Attachment 255452

[onocyclone]

Not sure if you can see them, ill get a link.

[onocyclone]

Nema 34 link: Nema34 CNC Router Stepper Motor 2Phase 4Wire GB34H2118-50-4A Single Shaft 8.5 | eBay
Nema 23 link: CNC Mill Router Cutter Nema 23 Stepper Motor 3Nm High Torque Smooth Low Noise 3A | eBay

M335 Driver Link: CNC DIY M335 CNC Stepper Driver Support Nema17, Nema23 Stepper Motors 0.5A-3.5A | eBay
M542 Driver Link: M542 CNC Stepper Driver Support Nema17, Nema23, Nema34 Stepper Motors 1.0A-4.5A | eBay

Control Card: CNC 5 Axis 50KHz USB Smooth Mach3 Stepper Motion Controller Breakout Card -D | eBay


Cheers,

Olly

[hoss2006]

Yeah I can read them, just finishing up with the numbers, back shortly.
Hoss

[onocyclone]

Thank you so much mate, really means a lot !!

[hoss2006]

Ok, for Steps Per using 1/8 microstepping (for smooth running) use 320 mm/min in mach 3 motor tuning.
this means it will output 320 pulses to move the axis 1mm.
Start with 1200 for velocity since you have 24 volts it should handle that.
If your hear a grinding, buzzing sound and it stops when moving the axis around that means it's missing steps, cut the velocity down some and try again.
65 in Accel should give about .3 seconds.

For your drivers, both will be set for 1/8 microstepping.
The switches for the M335
1 on
2 on
3 off
4 off
5 off
6 on

The switches for the M542
1 off
2 off
3 off
4 off
5 off
6 off
7 on
8 on

Note on the switch panel the arrow that points to the ON position.

Your motors will both be very underpowered at 24 volts so don't expect great performance.
The formula for determining the best voltage for a stepper to be run at is square root of the steppers inductance multiplied by 32.
For the nema 23 this works out to 87.6 volts and 67 volts for the nema 34.
You can only give 24 mainly because of the M335 max is 30 volts, the M542 could handle 50.
That is still less than optimal but better which is why it's best to get a package that best matches all 3, stepper, driver and power supply.
I have put together links for several that give great performance, G0704 Electronics
The drivers are set for the max amperage they can give, the nema 23 is a 3 amp 425 oz/in stepper which the M335 can output so you'll get full torque from it.
The nema 34 is a 5 amp 1205 oz/in stepper but the M542 only outputs 4.2 amps which means the torque will be reduced, 1012 oz/in.
Bear in mind this is holding torque, once the stepper starts moving the torque drops the faster it goes and microstepping reduces it further still this is plenty for this size machine.
Once it's running smoothly there is an axis calibration function in mach 3 to fine tune the steps per.
axis calibration
Hope this helps.
Hoss

[onocyclone]

Ok I've just put all this in place and the Z stalls instantly. The x and y move the DRO very quickly but are very slow to speed up. Any ideas ?

[onocyclone]

I can get a video of you don't understand ?

[hoss2006]

Video helps, I can't make out what breakout board you have, do you have a link?
You did click save axis settings for each axis in motor tuning correct?
I'm going to be AFK for a while.
Hoss

[onocyclone]

Yes I saved it all. Video is uploading.

- - - Updated - - -

There also seems to be some random hissing noises coming from the X and Y ?

[Fastest1]

Slow to speed up is an accel value. The higher the accel, the quicker to its velocity. To a point, the point is lost steps.

[onocyclone]

Video is up

- - - Updated - - -

http://m.youtube.com/watch?v=YULOjLz7lPo

[onocyclone]

Controller card link :

CNC 5 Axis 50KHz USB Smooth Mach3 Stepper Motion Controller Breakout Card -D | eBay

[hoss2006]

Before I go to supper I won't assume but ask to make sure if you set the native units to metric (MM's) in mach 3 config?
Hoss

[onocyclone]

Yes the native units are mm I know this


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[onocyclone]

I've accelerated all the axis motors up and it seems to have fixed the slow start up. In the Z I altered something and it is fine now I think. No stalling. I think I reduced the velocity a tinny bit.


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[hoss2006]

That's good to hear, the real testing can be done when they are mounted on the mill.
Hoss

[Contract_Pilot]

Love the hoss videos plain English!

[onocyclone]

That's good to hear, the real testing can be done when they are mounted on the mill.
Hoss

Yes, not sure how the motors could be faster ? Also where is the best place to get the couplers ? I've found that the ball screws have a 9.65mm shaft and the Z has a 9.65mm shaft. The two motors have 8mm shafts and the Nema 34 has the 14mm shaft.