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Messages - mach3lover

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1
General Mach Discussion / Re: Speed of stepper motors
« on: November 17, 2015, 12:29:04 PM »
I measure 24.45 V from DC+ to DC- on the drivers.

2
General Mach Discussion / Re: Speed of stepper motors
« on: November 13, 2015, 03:31:52 PM »
Yes in the inbox was G80 and I changed it now to F1200

The axes seem to move faster for one step, but if i want to test it for more example 10 steps
the motors start moving and then I get a high sound and the motors stop moving
Could it be that i have now a too high velocity?

Johanna


3
General Mach Discussion / Re: Speed of stepper motors
« on: November 11, 2015, 02:37:57 PM »
One more quick question on the same subject!

When I stopped working yesterday the machine was working just fine and the speed was good. I did nothing over night, and changed no settings, but now when I turn it on again the axis are moving very slow when I use try to jog them.

Do you have any clue why this might be?

/ Johanna

4
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 06:23:56 PM »
Haha, yes it is a bit confusing!  ::)

Thank you for all help! :)

5
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 05:09:57 PM »
AKZ-250

6
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 05:06:16 PM »
No I use a motion card!

7
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 04:56:52 PM »
Thank you, now everything works perfectly! :)

Yes I realised soon after I wrote that the X- and Y-axis should have the same settings! To make them accurate in distance I now put their steps per to 801,8, with 1/4 step in the motors.

I am now going to change the input pins for the limit switches. Why can't I use pin 0-4 for the switches and stops as I do now and it is working just fine?

/ Johanna

8
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 03:52:12 PM »
Wow, thanks for a good response!!

Now I have it moving at a good speed with the following settings:

X-axis
800 steps per
1200 velocity
40 acc

Y-axis
200 steps per
1200 velocity
20 acc

Z-axis
800 steps per
1200 velocity
40 acc

It moves good, but the axis is not even close to accurate.. When I move the X-axis 5 steps on the computer, it moves 19mm on the table...

I think I don't really understand the relationship between the settings here. The "Distance window" in Mach3, that will also show the koordinates in mm, since we set the whole program in mm, right?


Further on, we unchecked all the outputs and inputs, but we haven't had any problems with using them on these pins...? Or could it affect something else?

Also, what do you mean with the "step pulse" and "directions pulse"? Is 5 micro sec bad or good?

/ Johanna

9
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 03:01:02 PM »
I couldnt manage to attach the files here in the forum so I sent you an email!

10
General Mach Discussion / Re: Speed of stepper motors
« on: November 10, 2015, 02:29:42 PM »
Thanks for your response!

I have now tried the settings you gave me, but without success...

I aslo get the message that the velocity is too high for the kernel speed, but I can still run the machine.

I tried first at full step, and the axis is moving very slow. When I change to 1/8 it is moving even slower.

It feels like I am missing something super easy here. In the "Jog Tab", the rate is set to 100%, so it should move at full speed.


/ Johanna

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