Is it possible that the reason that I see such violent jerking when leaving the 
home 
switch (much greater acceleration than a G0 move) is because of this?

    >In theory EMC will never ask for more accel or velocity than the limits 
    >specify, but there are some very difficult cases.  One of them is 
    >backlash compensation - the comp move is done at a fairly high velocity 
    >and accel to get it over with as soon as possible.  If the direction 
    >reversal that causes the compensation also demands high accel, the sum 
    >of the two can be higher than the ini file limit.

    >Regards,

    >John Kasunich

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