rockerito91

Thanks for all your responses, I definetely have to buy a new board. I tried changing the Arduino because it was super hot, but nothing different happened, also changed by firmware the Z stepper to the E2 stepper, but same results 😞

Hi all Last quesfion before I buy another board. It is about the step signal that comes from the arduino to the stepper drivers, I measured it using an oscilloscope, and I saw 1.2 volt pulses. Is this OK or it has to be 5 volts pulses? And, Im from Colombia, would you please recommend any safe place or website to buy that board at USA?

Hello, I can't move any stepper or homing using pronterface. In configuration.h file I found this: // Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup). #define X_MIN_ENDSTOP_INVERTING true // Set to true to invert the logic of the endstop. #define Y_MIN_ENDSTOP_INVERTING true // Set to true to invert the logic of the endstop. #define Z_MIN_ENDSTOP_INVERTING true // Set to true to invert the logic of the endstop. So I need to change that to false, compile and upload using Arduino, right? Thanks again.

When I manually push all the limit sitches i got the "Trigerred" status.

Hello again. Using pronterface I entered M119, all the limit switches are on "open" So, what is the problem here? what woluld be the next step? Thanks in advance for all your help.

Hello, the EEprom is always cleared when a new firmware is installed, the printer asks to clear EEprom in the first run. I installed pronterface, entered M503 and got the response that is attached as a image. I can´t see anything related to limit switches 😞

Thanks again for your fast response. All the steppers are pugged in. I tried the factory reset with 3 different firmwares, I always get the Z switch broken ER_05 error in step 4, when the printer tries to level the bed and dont have any signal from Z switch. When I manualy click the 3 endstop switches, the printer finishes all the steps for the initial config. but still the same problem, none of the steppers move. I don't know what else can be done, maybe is there any way to test the stepper drivers? Any othe idea?

Thanks for your fast response. Yes, I'm sure that the bed heats up, also the extruder, I also checked that relay and it's ok, it delivers the 24V. I used the command for loading filament, the extruder heated but the stepper didn't move. Also I heated the nozzle to 180c and tried to move the stepper but it didn't worked. I compiled and uploaded the Marlin bugfix-2.1.x using arduino IDE, and with the configuration files fot the UM2+: https://github.com/MarlinFirmware/Marlin/tree/bugfix-2.1.x Also I used the CURA version that is attached as a ZIP. Tomorrow Ill try tinker marlin. Thanks again! ConfigurationUM2+.zip MarlinUltimaker2plus.zip

Thanks for your answer After doing several tests, I came to the conclusion that the Atmega16u2 that makes the USB connection was defective, so I decided to change it. Later it was possible for the PC to recognize the ultiboard, and so I loaded the UM2+ firmware. After this I managed to get it recognized by CURA and I updated the printer again. Things were looking good until I got to the same point I was at at the beginning, the “Z switch broken, ER_05” error. After reviewing several alternatives, including loading several different Marlin firmwares, I realize that the error is due to the fact that there is no movement in any of the X,Y,Z axes. I tried to move the steppers from the printer menu but got no response. I measured some voltages on the A4988 drivers, I found that it actually has 24V and 5V, the connection to GND is ok, the connections to the steppers are OK. The printer is capable of heating the bed, heating the extruder, showing different options on the display, turning on fans, but it does not move, none of the steppers work, not even the extruder one. Any additional suggestions you can give me? Is it possible that I need to change the A4988 so that the steppers can be moved?

I'm trying to recover a bricked Ultimaker 2+. The printer was not working well, it was not recognized on any PC using USB. The printer showed the error "broken z switch ER 05" but the switch had no problem, everything seemed in order. After that I decided to flash the most recent firmware that I found in cura (MarlinUltimaker2plus.hex) for the UM2+, I did this using a usbasp programmer through AVRDUDESS and connected to the ICSP1 port of the atmega 2560. Later I turned on the printer but it no longer worked , it didn't even show anything on the display. I also tried downloading several versions of Marlin, compiling them on Arduino and loading them directly from the Arduino ide using the usbasp programmer, it got flashed but it didn't work either. I tried loading the .hex with bootloader generated from Arduino, using AVRDUDESS, but it didn't work either, the printer is still lifeless, there is no sign of operation. This board is an Ultimaniboard rev. 2.1.4. Does anyone know what I could be doing wrong? Maybe when flashing the Atmega 2560 from AVRDUDESS or Arduino I'm missing a step? Please provide me with your kind help and knowledge, I am very urgent to repair this printer, if not I may lose my job :(