Solved Extruder stepper motor not working

Hi Guys,

my robo3d printer extruder stepper motor stopped working after 9 hours job. I moved from my hand its free, doesn't look something stopping. I changed wiring checked all connection.

last I printed 9 hours job. it was working fine then I turned off for 5 mins then I started new job it was not working. does it mean motor dead ?

how can I check ?

 

First check if there was an error. Might be that the extruder temp fell below the min temp. If you can get the extruder temp above 180/185c it should extrude. If not, could be a driver or stepper issue. First check your extruder temp.

 

Temp was the issue earlier after replacing wiring temp is fine but still motor is not working ...? Do I thing I should replace the motor ?

Driver issue ? You saying I should reinstall software ??

 

I should point out that if this is a new printer still under warranty, that you should schedule a call with Robo themselves to troubleshoot and get any needed replacements.

The stepper is driven by a driver on the RAMPS board. The driver pushes the current needed to run the stepper. That current setting is adjustable. A shade tree way of doing a quick check is to swap the connection of your E0 with Y while power is off and power cable and USB cable is unplugged. After, turn the printer on and use the manual controls within your slicer program to raise the temp of the hotend to over 185C. Then using your Y control, see if it will turn the extruder. If it does it might be a bed driver on E0. Next try to move Y with your extruder control. If it moves, but you previous attempt to extrude using the Y controls failed, then it might be the stepper. If they both move, then it might be a driver current setting needs adjustment on E0. Just do the smallest moves you can at first to check things out. Use caution when doing this. Report back and we can see what the next step is.

 

My printer not in warranty very old ... I'm new in 3D printer world. What you are saying I believe i have to use Adriano software to check E0 right?


Sent from my iPhone using Tapatalk

 

E0 is the driver port on the RAMPS board. The RAMPS is something you will find under the printer when you take the bottom cover off. There are 5 driver ports on the RAMPS. I circled the E0 here. You can see in the row below that there is the driver for the X, Y and Z. If you are new to all of this, take caution and ask questions to be sure. What I suggested was to just take the 4 wire plug from the E0 and swap with the Y. If you don't feel comfortable doing that, it's ok. I don't want you to do anything you aren't comfortable doing.

 

No totally comfortable doing anything this is how I can learn.. I tried that earlier before posting but was not sure which one is what now u pointed on picture. I can try again, I got the idea ur saying I'll plug the motor with other port which is working if it will work it
Mean motor is fine something else going on I'm right ?




Sent from my iPhone using Tapatalk

 

That's correct. There are other ways to check with a multi meter and such, but this is a way if you don't have the tools to narrow things down.

 

Thanks I'll check I'll update u guys in mean while can u tell me where I can find motor if it is bed ? Just want to check pricing.


Sent from my iPhone using Tapatalk

 

Thanks .... Can you tell what should I search on Amazon ?


Sent from my iPhone using Tapatalk

 

stepperonline is a good company. I have several from them. You can buy individual from them directly or on amazon.

http://www.omc-stepperonline.com/3d...er-motor-2a-45ncm64ozin-17hs162004s-p-16.html
https://amzn.com/B00PNEQI7W

 

I also should mention, that Robo used this large motor on the extruder because it was the same as all the others. So cost wise it made sense. With the gearing of the Greg's Wade, you could go smaller to reduce weight. Getting the same is fine as well.

 

I just checked I plug the motor in z axis. motor is working. Now what should I do ? What does it means my board is bad ?



Sent from my iPhone using Tapatalk

 

Ok, Z was one I didn't suggest because of how it drives 2 motors, BUT if what Z is set to worked, then that might mean something for us. Did you plug another axis into E0 to see if it would drive that axis? Could be that the RAMPS port for E0 is bad, the plugin A4988 stepper driver is bad, or the driver itself just needs to be adjusted to supply more current. Try driving X or Y by plugging the 4 wire plug from one of them into the E0. Does it allow you to manually move the axis?

Also you post 2 up about checking pricing, Geof and I gave you some links for pricing. However, with the stepper working when plugged into Z you are probably ok with the stepper. May need a new RAMPS or a new A4988 driver if we get to that point. Both are cheap. I have left links to help you get an idea of how cheap these are for reference. May not need them, but we will see as we continue to troubleshoot.

Whole electonics kit is cheap: https://amzn.com/B016D6DSBW
Just the RAMPS: https://amzn.com/B01FDDEP9K
Just the A4988 driver: https://amzn.com/B01KULNLDG

 

Thanks for links it will really help. Let me plug other stepper in E0.


Sent from my iPhone using Tapatalk

 

Nope no motor working in E0


Sent from my iPhone using Tapatalk