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Feature Requests / Re: CV bad behaviour need improvement
« on: April 05, 2012, 11:14:09 AM »
So you are saying that at a certain point MACH3 just STOPS following the axis tuning as far as Vel /Accel
I don't think so(;-) IF it did you could not make a part as the axis would be lost in 2d space.
You can MAKE the servo tuning TOO tight and get what you are describing. You can also tune Mach3 with too much accel for the velocity and get what you are describing.
Mach3 uses a bang bang planner (trapazoidal ramps) Get the Accelleration too high and it is like running into a wall to stop. (;-)
It is still ramping but the ramp form is almost vertical which can easliy SHAKE the machine. CV can ONLY do so much to correct it. Most times it is as simple as rewriting the Gcode Micro segmented code is bad for smooth operation and the faster you go the longer the bad segments can be.
Been there done that , (;-) TP

You can MAKE the servo tuning TOO tight and get what you are describing. You can also tune Mach3 with too much accel for the velocity and get what you are describing.
Mach3 uses a bang bang planner (trapazoidal ramps) Get the Accelleration too high and it is like running into a wall to stop. (;-)
It is still ramping but the ramp form is almost vertical which can easliy SHAKE the machine. CV can ONLY do so much to correct it. Most times it is as simple as rewriting the Gcode Micro segmented code is bad for smooth operation and the faster you go the longer the bad segments can be.
Been there done that , (;-) TP