Lathe X commands problem
21 Jul 2016 17:41 #77788
by Clive S
Lathe X commands problem was created by Clive S
I am have a problem with the lathe and X sometimes moves in the wrong direction. In MDI mode.
I can't seem to find the scenario to repeat it. sometimes commanding X2 with send the tool forward and other times it will send it back.
This is when I am playing about with threading routine G76 and touched off to the Dia. eg. X10 and the dro indicated Dia 10.
and then going back to MDI
The Z is always correct with the commands.
Any ideas what scenario would cause this?
I can't seem to find the scenario to repeat it. sometimes commanding X2 with send the tool forward and other times it will send it back.
This is when I am playing about with threading routine G76 and touched off to the Dia. eg. X10 and the dro indicated Dia 10.
and then going back to MDI
The Z is always correct with the commands.
Any ideas what scenario would cause this?
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22 Jul 2016 00:00 #77801
by tommylight
Replied by tommylight on topic Lathe X commands problem
Most probably to short of step_time and step_space and dir_setup and dir_hold.
Power supply problems will also cause this, so try it at a lower and a higher speed (feed)
On some occasions a lose motor shaft will do that, but very rarely.
Regards,
Tom
Power supply problems will also cause this, so try it at a lower and a higher speed (feed)
On some occasions a lose motor shaft will do that, but very rarely.
Regards,
Tom
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22 Jul 2016 06:39 #77809
by Clive S
Replied by Clive S on topic Lathe X commands problem
Tom Many thanks BUT having slept on it I think it is my bad. The lathe if functioning correctly. It is me not fully understanding the way I was touching off in Dia mode.
Of course if I touch off on to a 12mm bar and put 12mm into the box then commanding X2 or X-2 will move the tool forward.
But if I touch off on the same bar and put 0 in the box then command X2 or X-2 it will move forward and then back.
Of course if I touch off on to a 12mm bar and put 12mm into the box then commanding X2 or X-2 will move the tool forward.
But if I touch off on the same bar and put 0 in the box then command X2 or X-2 it will move forward and then back.
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22 Jul 2016 11:24 #77823
by tommylight
Replied by tommylight on topic Lathe X commands problem
Glad you got it working.
Tom
Tom
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