I am at a loss. Been battling this for way too long - need advise.
Have used the Prusa/Mendel build instructions.
Ramps 1.4 - Mega2560
Nema 23 motors 5.1v - 1A, 1.8d - 6 wire - using just the 4 not the center taps.
A4988 stepper drivers
550 watt power supply
Able to communicate with Arduino, have tried Sprinter and Marlin software and Ramps test.pde. Using Pronterface I can see temp and status of end stop changing with M119
Have never felt any resistance in motors. Have tried all axis's. Used [www.pololu.com] to set motor driver current.
Have extruder, no brand name, 4 wire, cannot get it moving either.
Getting 12v at VMot / Gnd
Getting 4.5V at VDD / Gnd
Thinking bad Ramps. Where do order a good one from, I see them from 8.00 to 30.00 assembled.
Have used the Prusa/Mendel build instructions.
Ramps 1.4 - Mega2560
Nema 23 motors 5.1v - 1A, 1.8d - 6 wire - using just the 4 not the center taps.
A4988 stepper drivers
550 watt power supply
Able to communicate with Arduino, have tried Sprinter and Marlin software and Ramps test.pde. Using Pronterface I can see temp and status of end stop changing with M119
Have never felt any resistance in motors. Have tried all axis's. Used [www.pololu.com] to set motor driver current.
Have extruder, no brand name, 4 wire, cannot get it moving either.
Getting 12v at VMot / Gnd
Getting 4.5V at VDD / Gnd
Thinking bad Ramps. Where do order a good one from, I see them from 8.00 to 30.00 assembled.