How to Tune 3D Printer Stepper Drivers | RAMPS 1.4/Pololu A4988

All of this information applies to all Folger Tech Printers, or any 3D printer, or CNC machine, that is using RAMPS 1.4 with Pololu A4988 stepper drivers.

--OLDER KITS WITH 2.6kg/cm and 4.8kg/cm STEPPERS--
Smaller stepper's driver should be set between 0.2-0.35v.
Larger stepper's driver should be set between 0.4-0.65v.
Two smaller steppers on one axis should be set between 0.35-0.5v.

--NEWER KIT WITH 5.0kg/cm STEPPERS--
Single Motor -Tune to 0.7-0.9v
Dual Motors on one driver - Tune to 0.9-1.3v


----VOLTAGE BY PRINTER----

--OLDER KITS WITH 2.6kg/cm and 4.8kg/cm STEPPERS--
Folger Tech Prusa (both versions)
Small Stepper - Extruder/X -- 0.2-0.35v.
Large Stepper - Y -- 0.4-0.65v.
Two Steppers - Z -- 0.35-0.5v

Folger Tech Kossel
Small Stepper - X/Y/Z -- 0.2-0.35v.
Large Stepper - Extruder -- 0.4-0.65v.

Folger Tech Cloner
Small Stepper - X/Z/Extruder(s) -- 0.2-0.35v.
Large Stepper - Y -- 0.4-0.65v.

--NEWER KITS WITH 5.0kg/cm STEPPERS--
FT-5 (Uses 6 Larger Motors that are even bigger than the others)
X/Extruder - Single Motor -Tune to 0.7-0.9v
Y/Z - Dual Motors on one driver - Tune to 0.9-1.3v

CLONER, KOSSEL, and PRUSA
Single Motor -Tune to 0.7-0.9v
Dual Motors on one driver - Tune to 0.9-1.3v

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