Ignoramus24925 wrote:

Joe, I will get a shielded cable for the motor leads, and will ground
the cable, and will also add those filters. If I recall correctly, the
cables from the motors connected to the main terminal block, are not
that shielded, so if I shield the cables going from drives to terminal
block, it is only half the battle.

i

You can get flexible metal conduit (Greenfield) at Depot or Lowe's and
fish your motor (both spindle and servos) through the conduit to provide
shielding. It's cheap stuff, I just got a 25' roll of 1/2" FMC at Depot
for $10. They also have 3/8" size which may be better for the servo
power leads.