Si usas solo un extrusor, deberías conectarlo a la salida de al medio, entre la salida de corriente del hot-end y la cama caliente, lo que te da una salida regulable de corriente. Hasta donde yo se, eso funciona en Marlin, no se si en otros firmwares funcione igual. Saludosby maltasev - RepRap en Español
Quizá se hayan dañado los transistores que estan cerca de los conectores para la hot bed y la hot end; si es ese el caso, reemplazalos y todo deberia andar de nuevoby maltasev - RepRap en Español
The same happened to me, using the same controller. You get an error compiling? You have to outcomment this line: #endif // ENABLE_AUTO_BED_LEVELING I solved my problem by doing that, because that function, if you don't use it, you can't compile without outcommenting it. I hope that solves your problem, have a nice dayby maltasev - Reprappers
Wich temperature are you heating up the nozzle? Try 240ºC, is a good temperature for ABSby maltasev - Printing
I had the same problem bro, you should take a look at the config.h file, because some firmwares like Marlin do invert the logic of the endstops by default. If all of them are "true" in the config.h file, you should put them on false. After that, go to Pronterface, connect your printer, and when you have it online, while you keep any endstop pressed, you send the M119 command, which will send youby maltasev - Reprappers
If you want to build a Prusa i3, first, buy the frame and then the plastic parts. After that, you can get the motors, the threaded and smooth rods, bolts and screws, and you will have a fun time putting all together. After that, you could buy an electronics kit, i made my printer with a Getech kit, they have good products and they ship worldwide. I haven't built an i3, but my i2 wasn't that expenby maltasev - Reprappers