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High Motor Amps

Modified on Sunday, 01 February 2015 05:26 PM by mpieler Categorized as Extrusion Hints
High Motor Amps
Vol. 19 #1, Feb. 1992

Often high motor amps can be caused by one zone being too cold, usually a transition zone where melting is occurring.

Look at the screw design and measure along the barrel length to determine which heater zone is the transition zone and start increasing temperatures. A 10 to 20% drop in amps, with no increase in stock temperature, is not uncommon.

Another cause of high motor amps is the motor operating at too low an RPM. To utilize more of the available motor horsepower, a gearbox or drive pulley change is often necessary.

See also:
  • Calibrate tachs
  • Decreased motor amps
  • Drive speed controller
  • Extruder drive
  • Heater amps
  • Max RPM
  • Rules of thumb
  • Screw design
  • Temperature control

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