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« on: May 06, 2011, 06:20:47 PM »
OK...I am new here......and usually work with Big Machines......but my question is related to the Hobby Machine I am playing with.....( TownLabs TL518)
I have a great CAD program for doing complex Surfaces....( Rhino )
I have a great CAM system for doing toolpath generation...( Madcam plugin for RHINO)
Simulation in MADCAM tells me I have a 50 min cycle time for Z level roughing.....( GREAT!)
Code output from Post processor is ok ( lots of X movements {with no other AXIS changes} written as a bunch of small steps....uuugh)
ACTUAL RUN TIME ( even using G00 command lines)........over 8 hrs.......
BOTTOM LINE.....THE THING IS JUST BARELY MOVING!!!!
What is creating this problem???
My Guess.....
the small steps do not allow the ACCEL/DECEL curve of the drives to be over written in the smoothing algorithm....hence even though my feedrate is set to 2000mm/min, actual traverse is more like 100mm/min...
How do I overcome this??
Play with motor tuning?
Any help appreciated!
Sam