Nema 23. Slow

Try setting your max velocity to 1 or 2,
0.2 Inches per second is very slow

PCW I cannot raise it any more. If I do the motor makes strange sounds or just stops.

What stepper driver are you using?

What I have found is Max Acceleration ends up being 10-20 times Max Velocity.
Max Velocity of 0.2 IPS is 12 inches a minute did you expect something else?

Driver board is a TB6540 Blue one from E-Bay. The Motors are 275 oz Nema 23.
I was not expecting anything as I am new. If this is as fast as it will go I guess I am
good. I will get the Z-Axis working next. I have 2 motors on the Y-Axis then to get
working.

I cannot increase max Velocity or Acceleration with out problems. Is 12 inch per minute
slow or OK or Fast. I do not know how fast the average machine can cover 12 ". I do not
know anyone with a machine. I only see them on Youtube. Some look fast some look slow.

Thank You

John I did get it a little faster so I am going with that for now.

A new problem

I get 22.7 volts at the a+ to A- on the Z axis. I am now working on the Z axis and getting nothing.
I also get nothing on the Y axis . I have tried enable and the check box to reverse it. Still nothing. I
am wondering if I have a bad driver board. Should I be getting 22.7 volts at all A= to A- pins.

A PS to you question about speed. I can see that the power supply is under powered. I am looking
into replacing it. The power supply is 24 volts at 8.5 amps. Do I look for a 34V 15 A power or would
34 V be to much for the Nema 23 295 oz motors

Hi

It is nothing to do with the steppers, rather the rating of the stepper drivers.

Choose a PSU as close to the maximum input voltage of the stepper drivers as you can, with the highest wattage you can find, the driver will supply the correct voltage / amperage to the steppers.
Probably 48v rather than 34v, unless 34v is near the max.

I did wonder if a lot of the problem might not be your PSU and 200W is woefully low for powering 3 axes

regards

Thank Yu for the fast reply.

User Guide for 4 axis TB6560 driver board

Product Features:
Toshiba TB6560AHQ chip - High power, maximum 3.5A drive current chipset !
1-1/16 microstep setting - Higher accuracy and smoother operation than standard 1, 1/2 step!
Adjustable drive current settings for each axis - 25%,50%,75%,100% of full current can be set for different stepper motors
Overload, over-current and over-temperature safety - Full protection for your computer and peripheral equipment !
On board current switching - Power output can be set according to specific user requirement !
Full closed-type optical isolation to protect the user's computer and equipment
Relay spindle interface - Outputs Max. 36V 7.5A for spindle motors or coolant pump (only one device can be powered by this output!)
4 channel inputs interface- Can be used for XYZ limit and emergency stop !
Professional design - Two stage signal processing with super anti-jamming !
Bipolar constant current chopper drive with non-resonant region - Controls motors smoothly through range without creep effect !
Four control inputs (divided into pairs of knives) - Allows setting of limit and emergency stop !
Universal architecture - Supports most parallel software MACH3,KCAM4,EMC2 etc!
* Important Notes:
Power supply DC 12-36V (not included)
*Voltage Selection:
12-16V DC power supply for Nema 17 stepper motors
16-24V DC power supply for Nema 23 stepper motors
24-36V DC power supply for Nema 34 stepper motors
(High voltage will burn up the chips or stepper motors!!!)
*Ampertage Selection:
Output current of the power supply can be calculated by the following expressions:
Output current = Rated current of your stepper motors * quantity + 2A
(For example, if you want to drive 3 * 3A Nema 23 stepper motors, theoretically 24V 11A DC power supply is recommended, but higher power such as 24V 15A also will be good.
If you are not sure about the selection of power supply, please feel free to contact us for help)
The power output of 12V shall be applied to the radiator fan of 12V
Driver output compatible with 2 or 4 phase, 4,6 or 8 lead stepper motors, 3A max.
Suitable for unipolar or bipolar stepper motors.
Voltage regulated spindle speed controlled by parallel interface as function of supply voltage.

The motor has on it 1:0A(u) 1.8 deg/step does this look to be a 1 amp motor.
What do you recommend as a power supply or should I look at bigger motors and more power.
I sure am learning a lot LoL. Thank You for your help

*Voltage Selection:
12-16V DC power supply for Nema 17 stepper motors
16-24V DC power supply for Nema 23 stepper motors
24-36V DC power supply for Nema 34 stepper motors

I am not familiar with the 'all in one' Chinese TB6560 boards.
The voltage table sounds weird, as if there is not proper regulation inside the driver and it depends upon supply voltage.

cncbasher has had quite a bit of dealings with them, I will ask him to chip in

regards

Thank you.

About the other problem I am having. The Z axis not working. I have the X and The Y
working, It appears that the Z is not powering up. The Z is using
Pin 5 Enable
Pin 6 Direction
Pin 3 Step
I have a meter to use but I am not very good with it. What can I look for.
If I get Z to work I will finish this machine by next weekend. I will do some
testing and see what goes. Speed is not an issue at this time I will improve
things as I learn. I just want this working for now.

Thank You for all the patience and help .
Don

are you trying to run using a pc psu ?
as Arceye has mentioned , go for the max voltage you can , this is usuay 37 volts , however i would not go above 34v
32v would be a safe bet

amperage wise your looking at 11 - 15amps for 3 motors , a 200w power supply is just not enough for 3 motors .

it is possible you have either a bad board or could even be the connections are incorrect , it's known that these boards can be supplied with the wrong diagram
change your power supply and go from there , would be the best way forward .

then any probems post your hal and ini files ,
if a look on the pcb they are sometimes marked with a version number , which may help