Steppers run in StepConf but not in AXIS
- Marshal28437
- Offline
- New Member
-
Less
More
- Posts: 8
- Thank you received: 0
13 Jul 2016 22:47 #77419
by Marshal28437
Steppers run in StepConf but not in AXIS was created by Marshal28437
Hello all,
I have been using LinuxCNC for about 3 days and for the last two days I have been banging my head against why my steppers (just loose for now) run beautifully in the StepConf and don't so much as twitch in AXIS while running the sample file.
I'm using a generic parallel port 5-axis breakout board to just X,Y and Z stepper drivers and everything else is as default and basic as it gets.
I'm sure this is something so basic that no one has bothered to write about before because I can't seem to find anything in the Forums.
Your help is appreciated in advance.
I have been using LinuxCNC for about 3 days and for the last two days I have been banging my head against why my steppers (just loose for now) run beautifully in the StepConf and don't so much as twitch in AXIS while running the sample file.
I'm using a generic parallel port 5-axis breakout board to just X,Y and Z stepper drivers and everything else is as default and basic as it gets.
I'm sure this is something so basic that no one has bothered to write about before because I can't seem to find anything in the Forums.
Your help is appreciated in advance.
Please Log in or Create an account to join the conversation.
- Todd Zuercher
-
- Away
- Platinum Member
-
Less
More
- Posts: 5000
- Thank you received: 1414
14 Jul 2016 02:47 #77422
by Todd Zuercher
Replied by Todd Zuercher on topic Steppers run in StepConf but not in AXIS
One of the more common reasons for this is because Stepconf does not use the drive enables in test mode and if you have the drive enable/disable connected to a drive that is in the normally enabled state, when Axis tries to enable the drives it is actually disabling them.
So in a nutshell, if you have your machine set up with drive enable signals try inverting that signal.
So in a nutshell, if you have your machine set up with drive enable signals try inverting that signal.
The following user(s) said Thank You: Marshal28437
Please Log in or Create an account to join the conversation.
- Marshal28437
- Offline
- New Member
-
Less
More
- Posts: 8
- Thank you received: 0
14 Jul 2016 04:17 #77428
by Marshal28437
Thanks for your reply.
My drivers do have enable signals but I have left them disconnected from the breakout board. I'm assuming they are active low because when they don't get a signal the drive is active and they ran this way in the StepConf...
Replied by Marshal28437 on topic Steppers run in StepConf but not in AXIS
...
So in a nutshell, if you have your machine set up with drive enable signals try inverting that signal.
Thanks for your reply.
My drivers do have enable signals but I have left them disconnected from the breakout board. I'm assuming they are active low because when they don't get a signal the drive is active and they ran this way in the StepConf...
Please Log in or Create an account to join the conversation.
14 Jul 2016 10:59 #77432
by Rick G
Replied by Rick G on topic Steppers run in StepConf but not in AXIS
When you start linuxcnc check to see if there is power to the motors, that is see if the motor shafts are locked, try this both with linuxcnc started and with linuxcnc off.
Rick G
Rick G
The following user(s) said Thank You: Marshal28437
Please Log in or Create an account to join the conversation.
- Todd Zuercher
-
- Away
- Platinum Member
-
Less
More
- Posts: 5000
- Thank you received: 1414
14 Jul 2016 12:01 #77433
by Todd Zuercher
Replied by Todd Zuercher on topic Steppers run in StepConf but not in AXIS
Are you pressing the e-stop reset and machine power on buttons? (Top left corner of screen or F1/F2)
Please Log in or Create an account to join the conversation.
- Marshal28437
- Offline
- New Member
-
Less
More
- Posts: 8
- Thank you received: 0
14 Jul 2016 14:54 #77440
by Marshal28437
Checked, whenever I have the power supply for the motor drivers ON the shafts of the motors are locked regardless if LinuxCNC is running or not even while running the sample part the shafts stay locked with no rotation or vibration.
Thanks.
Replied by Marshal28437 on topic Steppers run in StepConf but not in AXIS
When you start linuxcnc check to see if there is power to the motors, that is see if the motor shafts are locked, try this both with linuxcnc started and with linuxcnc off.
Rick G
Checked, whenever I have the power supply for the motor drivers ON the shafts of the motors are locked regardless if LinuxCNC is running or not even while running the sample part the shafts stay locked with no rotation or vibration.
Thanks.
Please Log in or Create an account to join the conversation.
- Marshal28437
- Offline
- New Member
-
Less
More
- Posts: 8
- Thank you received: 0
14 Jul 2016 15:07 #77443
by Marshal28437
Yes, my exact procedure is:
Turn on the computer and driver power supply,
Execute the LinuxCNC from the desktop shortcut StepConf made which opens to AXIS,
Toggle off the E-Stop (F1) I don't have a physical E-Stop connected right now,
Toggle on the machine power (F2)
Home each axis just by clicking the home axis buttons with each axis selected in turn.
Toggle off the skip lines with "/" like the example says and finally,
Press the play button (R)
The viewing window shows me the preview of the tool tip moving etc... But no stepper motion.
I should also mention the "Jog" functions have no real world effect.
Thanks.
Replied by Marshal28437 on topic Steppers run in StepConf but not in AXIS
Are you pressing the e-stop reset and machine power on buttons? (Top left corner of screen or F1/F2)
Yes, my exact procedure is:
Turn on the computer and driver power supply,
Execute the LinuxCNC from the desktop shortcut StepConf made which opens to AXIS,
Toggle off the E-Stop (F1) I don't have a physical E-Stop connected right now,
Toggle on the machine power (F2)
Home each axis just by clicking the home axis buttons with each axis selected in turn.
Toggle off the skip lines with "/" like the example says and finally,
Press the play button (R)
The viewing window shows me the preview of the tool tip moving etc... But no stepper motion.
I should also mention the "Jog" functions have no real world effect.
Thanks.
Please Log in or Create an account to join the conversation.
14 Jul 2016 17:11 - 14 Jul 2016 17:13 #77449
by Rick G
Replied by Rick G on topic Steppers run in StepConf but not in AXIS
O.K. perhaps look in your configuration files to make sure the correct parallel port address is in the file.
Also double check that you are running the configuration you created with Stepconf and not some other config.
One way to check is to edit the MACHINE name in your ini file and when you run linuxcnc make sure that is shown in the top.
Rick G
Also double check that you are running the configuration you created with Stepconf and not some other config.
One way to check is to edit the MACHINE name in your ini file and when you run linuxcnc make sure that is shown in the top.
Rick G
Last edit: 14 Jul 2016 17:13 by Rick G.
Please Log in or Create an account to join the conversation.
14 Jul 2016 17:53 #77450
by BigJohnT
Replied by BigJohnT on topic Steppers run in StepConf but not in AXIS
Zip up your config directory and attach it.
JT
JT
The following user(s) said Thank You: Marshal28437
Please Log in or Create an account to join the conversation.
- Marshal28437
- Offline
- New Member
-
Less
More
- Posts: 8
- Thank you received: 0
14 Jul 2016 20:03 #77455
by Marshal28437
I hope this is what you are looking for, the INI I'm running is my_mill
Let me know if you meant something else.
Thanks.
Replied by Marshal28437 on topic Steppers run in StepConf but not in AXIS
Zip up your config directory and attach it.
JT
I hope this is what you are looking for, the INI I'm running is my_mill
Let me know if you meant something else.
Thanks.
Please Log in or Create an account to join the conversation.
Time to create page: 0.122 seconds