Messages

71

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 07:34:17 PM »

Here are the Ess settings before I start.

72

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 07:30:31 PM »

Thanks Hood
Was just wondering if the Ess treated a step & Dir spindle the same as an axis, or differently, as you say. I'll play with the Ess settings now. Wont be long.

73

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 07:11:55 PM »

Attachment

74

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 07:09:35 PM »

Well, some areas were successful, but others not. I set the servo back up, and configured the motor in motor tuning as shown in the attachment.
I tested from 200rpm up to 700rpm and the servo controller displayed the speed that I commanded in Mach. Ie: M3S400 made the servo controller display 400rpm and I assume the servo was turning at that speed.
However, once I went past 700rpm, the servo would just stop turning with no errors on the controller or Mach. When I used an M5 command after it had stopped the motor would start to spin once it decelerated to 700rpm down to 0rpm.

This is the issue that I was trying (not very well) to describe before.

Cheers

Dave

75

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 06:10:04 PM »

Thanks a milion Hood. I don't think I would have ever worked that out on my own!
I'll give it a try in a couple of hours.

Thanks again

Davel

76

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 05:30:48 PM »

Attachment

77

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 05:30:06 PM »

See the attached file for the X settings that work, the servo isn't on the lathe yet, and I haven't had delivery of the ball screws, so atm the steps per unit are a guess. I thought I could just disable the X axis in Mach, and use the same settings for a spindle. This is where my theory has a hole!

78

General Mach Discussion / Re: Using servo for spindle on lathe

« on: March 15, 2016, 04:00:00 PM »

Hi Hood
I'm not sure about the encoder count, but I will check the manual when I get out there this morning and let you know.
The max RPM is 3000 and the nominal is 2500. It spins ay any speed you like when it is set up as an X axis.
I haven't connected the encoder output to Mach.

79

General Mach Discussion / Using servo for spindle on lathe

« on: March 15, 2016, 07:43:26 AM »

Hello everyone
I had a great idea the other day, and that was generated by my recent acquisition of a little Myford lathe from a deceased estate.
I want to convert it to Mach, but leave it in a condition that can easily be put back as original.
Anyway the problem I have atm is a follows:
I set up a servo as the X axis, then decided to use it as a spindle. I checked the box in the Ess plugin to say that the spindle was step and direction. 

This servo works well and revolves at maximum speed (2500rpm) when it is connected to the smoothstepper and configured in Mach as the x axis. 

Using the same servo controller and cable etc, in fact all I  did was change the configuration in Mach,  I can't get the motor to turn at over 700 rpm. 

The servo does support step and direction  and as i have already said it works well when it is X.

I'm sure if will be an easy fix. It could be caused by the smoothstepper,  or the the Mach configuration. 
Anyway I'd better mention my configuration.
Mach3 an Ess, a GSK Servo and controller.
I think that's it.
Any help would be appreciated.
Dave

80

CS-Lab / Re: CSMIO/IP-A Error Connection failed

« on: February 26, 2016, 05:29:26 PM »

I feel silly now - it is fixed.
It was the Pc after all. As soon as I set mach up on a different Pc the issue was gone. I don't know what the issue was, but I suspect it had something to do with XP on the initial Pc, the second one was running Win 10.