YES! I have the RAMPS connected to the arduino with some hookup cables right now and it works perfect. I never wouldve guessed that because it looked like my shield was on pretty good, but I guess it is sensitive. Ya it's been a rough start for me tooby mkaisercross - RAMPS Electronics
Do you have the jumpers installed? Should be three below each driver.by mkaisercross - RAMPS Electronics
I am having alot of trouble getting these RAMPS to work. I have bought 4 so far and 4 out of 4 have been broken on arrival. What keeps happening is that I can get one or two motors to work but the third motor will not work. One board I couldn't get the extruder heater to work. I am using marlin firmware and RAMPS 1.4. I attached my marlin configuration file. Here is the testing I have done so faby mkaisercross - RAMPS Electronics
I believe the problem was that I did not have the pin jumpers plugged in below the stepper drivers. The wiki made it sound like it was optional that you could use for setting the micro stepping. Not sure if you have to change something in the firmware or maybe it is supposed to be controlled by changing the jumpers only and my driver is not functioning correctly. But changing from zero jumpers tby mkaisercross - Reprappers
So could you connect + to 1, S to 2, and - to 4?by mkaisercross - Reprappers
Your problem sounds a lot like mine. I have the Minebea 17PM-K307-05VS motors. I can't get them turning and I am also getting the weird static when I touch the trimpot. First time I heard it I thought I blew something for sure. But ya I only touched the trimpot with one multimeter lead and it made that noise. And the noise was coming from the stepper lol. I am using a 12V supply, but now that youby mkaisercross - Stepper Motors, Servo Motors, DC Motors
Ya I think so but your gonna need 5 for the motors and 3 for the endstops. You can ordered the cables premade on ebay or if you want them to be a certain length you can order the connectors and crimps.by mkaisercross - Reprappers
I was not able to get the stepper motors turning with Pronterface. I am still not sure if it was the steppers, or the electronics. I just went ahead and ordered a brand new Arduino mega, RAMPS board, and drivers from Sainsmart.com. This company looks legit and hopefully everything should be good quality and compatible. So I just recieved the new electronics today and tested it. So far I have onlyby mkaisercross - Reprappers
Didn't see on your list but you may already have these. Connectors for motors and end-stops. Power supply.by mkaisercross - Reprappers
It tells you about the max current and max voltage. If you plug them in to your drivers not knowing what voltage to set the potentiometer at you can fry your drivers. If it ends up not working you never know if you fried something or they were broken to begin with. Then you have to figure out what to replace the driver, electronics board, or the steppers. Not good.by mkaisercross - Reprappers
My advice would be to check out the different types of stepper motors and different types of stepper drivers on the reprap wiki. I bought my motors on ebay I now I can't find the datasheet for model number of nema 17 stepper motors. In general spending a little extra on models that other people have tested is usually worth it. Make an exhaustive list of things you need. You don't want all your pby mkaisercross - Reprappers
I just tested the resistances again and they I am getting the proper readings as you say. 1A to 1C is 10 ohms and 1A to 1B is 5 ohms and 1B to 1C is 5 ohms. Here is how I have it wired. Stepper Motor ================ 1A 1B 1C 2A 2B 2C | . . .| . .| . . .| . . | . . | | . .___| . . .| . . . . . | | . | . . ____| . . . . . | | . | . . | . ._______| | . | . . | . .| | . | . . | . .| 1 .2 . 3by mkaisercross - Reprappers
Hello all. I am trying to build the Mendel Prusa and I just started the wiring things up. My issue is that when I press extrude in pronterface the motors buzz rather than spin. Here is my basic setup. I am using an Iduino Mega board with Sprinter firmware and a RAMPS shield. I have A4988 drivers and Nema 17 steppers, Minibea 17PM-K307-05VS, with 6 Pins. I only have one motor and driver connecby mkaisercross - Reprappers