Jog speed is very slow

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10 years 7 months ago #71491 by Clive S
Replied by Clive S on topic Jog speed is very slow

cmorley wrote: [DISPLAY]
is the one to change.

don't remove the PID stuff.

Chris M

Ok Chris that works thanks. The stepper make a ticking noise at the end of a movement and the dro moves very slowly after the motors appear to have stopped. ie it appears to be finding it exact position. Is this another PID setting So what is the parameter to change?

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10 years 7 months ago #71495 by PCW
Replied by PCW on topic Jog speed is very slow
Settting all the P terms to 1000 in the INI file should fix this

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10 years 7 months ago #71497 by Clive S
Replied by Clive S on topic Jog speed is very slow
Thanks Peter. Is there any reason for me not to use steconfig instead of pncconf as I am using steppers on a small mill.

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10 years 7 months ago #71499 by cmorley
Replied by cmorley on topic Jog speed is very slow
stepconf does not support Mesa cards so it won't work for you.

Chris M

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10 years 7 months ago #71500 by Clive S

cmorley wrote: stepconf does not support Mesa cards so it won't work for you.

Chris M

Good enough reason Thanks Clive

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10 years 7 months ago #72323 by Amedee
Replied by Amedee on topic Jog speed is very slow

cmorley wrote: well I pushed fixes to pncconf to set more reasonable defaults for metric and angular jogs.
will be included in 2.7.5


Thank you!

I scratched my head the whole evening yesterday with that -- beyond the speed it now sets the FERROR accordingly.
The 'Imperial FERROR' was generating strange moves in pncconf (axis going backwards after a jog move) and also gave 'Joint 0 following error' while homing in LinuxCNC.

I pulled the latest version this morning and it now works as expected.

Note that there is a typo in the comments , it should be 360, not 380 ;)

Also, as I was wondering why the maximum values in the UI didn't change proportionally, I realized they where hard-coded in screen.glade, and by cranking up the values for the metric folks, we get very big ranges in the imperial system.

Shouldn't we set the range dynamically based on the system chosen? -- something like:
Code:
--- bin/pncconf.orig 2016-03-29 10:43:24.506867501 +0200 +++ bin/pncconf 2016-03-29 13:21:50.975355007 +0200 @@ -797,6 +797,7 @@ if units: # imperial # set GUI defaults self.max_linear_velocity = 1 # 60 inches per min + self.max_linear_velocity_range = (0, 100) self.default_linear_velocity = .25 # 15 inches per min self.min_linear_velocity = .01667 @@ -818,7 +819,8 @@ else: # metric # set gui defaults self.max_linear_velocity = 25 # 1500 mm per min - self.default_linear_velocity = 6 # 380 mm per min + self.max_linear_velocity_range = (0, 2500) + self.default_linear_velocity = 6 # 360 mm per min self.min_linear_velocity = .5 # axes defaults --- lib/python/pncconf/pages.py.orig 2016-03-29 12:16:23.136734626 +0200 +++ lib/python/pncconf/pages.py 2016-03-29 13:25:24.296673195 +0200 @@ -408,6 +408,7 @@ self.w.max_spindle_override.set_value( self.d.max_spindle_override*100) self.w.min_spindle_override.set_value( self.d.min_spindle_override*100) self.w.max_linear_velocity.set_value( self.d.max_linear_velocity*60) + self.w.max_linear_velocity.set_range(self.d.max_linear_velocity_range[0],self.d.max_linear_velocity_range[1]) self.w.min_linear_velocity.set_value( self.d.min_linear_velocity*60) self.w.default_angular_velocity.set_value( self.d.default_angular_velocity*60) self.w.max_angular_velocity.set_value( self.d.max_angular_velocity*60)

(Also instead of maintaining 2 sets of values imperial/metric, we could just extrapolate the metric ones from imperial)

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