Stepper Motors Disabled

PJJ · Post by **PJJ** » Thu Jul 16, 2015 10:53 pm

I am trying to figure out the issues i am having with my 3d printer. The stepper motors are saying they are saying disabled on the lcd screen, i was wondering if anyone knows how to enable them. i cant get the arms to move because they are saying disabled. has anyone have this issue before

BenTheRighteous · Post by **BenTheRighteous** » Fri Jul 17, 2015 10:05 am

Does issuing a "home towers" command fix the problem?

PJJ · Post by **PJJ** » Fri Jul 17, 2015 12:22 pm

BenTheRighteous wrote:Does issuing a "home towers" command fix the problem?

I try to home them using matter control and the LCD display but it stills say it is disabled and inactive. I still cant get the arms to move.

BenTheRighteous · Post by **BenTheRighteous** » Fri Jul 17, 2015 1:39 pm

Have the arms moved ever, or is this a newly built printer? Max or Orion?

PJJ · Post by **PJJ** » Fri Jul 17, 2015 4:22 pm

BenTheRighteous wrote:Have the arms moved ever, or is this a newly built printer? Max or Orion?

this is a newly built printer. It is a Max. I have been trying to just configure the machine so i can make the first print

Earthbound · Post by **Earthbound** » Fri Jul 17, 2015 8:06 pm

AFAIK

"Steppers Disabled" is not an error message. It is just information. After certain events the firmware will shut off the steppers. When the steppers are disabled, you can move the cheapskates by hand. There is no "enable steppers" action in the Repetier menu. No action is required to re-enable them. They should respond to a move command.

If you've gotten as far as beginning to play with Matter Control, then you must have already run axis direction check and limit switch tests, right? So that would tell us that the motors have actually run at some point already.

IMBoring25 · Post by **IMBoring25** » Sat Jul 18, 2015 12:34 am

Right, you shouldn't have to manually enable the steppers. If it's ignoring a move command you may have a wiring issue with the motors. I've never done it so I'm not sure if the symptom would be the same if you have the endstops wired with reversed logic.

PJJ · Post by **PJJ** » Sat Jul 18, 2015 12:18 pm

Earthbound wrote:AFAIK

"Steppers Disabled" is not an error message. It is just information. After certain events the firmware will shut off the steppers. When the steppers are disabled, you can move the cheapskates by hand. There is no "enable steppers" action in the Repetier menu. No action is required to re-enable them. They should respond to a move command.

If you've gotten as far as beginning to play with Matter Control, then you must have already run axis direction check and limit switch tests, right? So that would tell us that the motors have actually run at some point already.

ok thanks yes i have got far with starting to play with matter control however i tried to run axis direction and run test but the motors never turned on and the arms have never moved. I was beginning to calibrate them because i have the kysan stepper motors. When i changed the range from "175" to "155" the arms still did not move even if I turned them back to "175"

PJJ · Post by **PJJ** » Sat Jul 18, 2015 12:19 pm

IMBoring25 wrote:Right, you shouldn't have to manually enable the steppers. If it's ignoring a move command you may have a wiring issue with the motors. I've never done it so I'm not sure if the symptom would be the same if you have the endstops wired with reversed logic.

is it a way to fix the wires in the stepper motor because they came already installed and all i had to do was plug them into the rambo

Polygonhell · Post by **Polygonhell** » Sat Jul 18, 2015 12:41 pm

Are you certain you've managed to connect in matter control?
It is unlikely all the motors are bad.
Have you tried homing from the LCD screen?

PJJ · Post by **PJJ** » Sat Jul 18, 2015 12:47 pm

Polygonhell wrote:Are you certain you've managed to connect in matter control?
It is unlikely all the motors are bad.
Have you tried homing from the LCD screen?

yes i am certain it was connected to the matter control because i was able to turn on the heated bed and hotend from mattercontrol. I tried to home the machine from the LCD however no luck. I emailed the seemecnc and they told me to swap the F2 and F3 inputs and see if that would help but that didnt help either and now the whole board wont come on now

Polygonhell · Post by **Polygonhell** » Sat Jul 18, 2015 12:56 pm

It's possible fuse F2 is dead on the Rambo board, you can check it with a meter. It would cut all power to the motors.

PJJ · Post by **PJJ** » Sat Jul 18, 2015 1:02 pm

Polygonhell wrote:It's possible fuse F2 is dead on the Rambo board, you can check it with a meter. It would cut all power to the motors.

ok that makes sense but im just curious why seemecnc support would tell me to swap the f2 and f3 fuses. before i swapped them the board worked fine, i could get the heating bed and the hot end to its correct temperatures. the minute i swapped them now the board wont turn on. anyways is it possible to replace the fuse or i would have to buy an entire new rambo board.

Polygonhell · Post by **Polygonhell** » Sat Jul 18, 2015 1:05 pm

Support is just trying to establish if the fuse is dead without you having a meter. If F2 is dead, and you swap it with F3, then the board will be dead, since F3 is the fuse for the heater and the logic if I remember correctly.

Yes they are replaceable parts, part numbers are posted in several threads, and I'm sure support can send you one.

PJJ · Post by **PJJ** » Sat Jul 18, 2015 3:44 pm

Polygonhell wrote:Support is just trying to establish if the fuse is dead without you having a meter. If F2 is dead, and you swap it with F3, then the board will be dead, since F3 is the fuse for the heater and the logic if I remember correctly.

Yes they are replaceable parts, part numbers are posted in several threads, and I'm sure support can send you one.

ok thanks

PJJ · Post by **PJJ** » Wed Jul 22, 2015 10:14 pm

PJJ wrote:
Polygonhell wrote:Support is just trying to establish if the fuse is dead without you having a meter. If F2 is dead, and you swap it with F3, then the board will be dead, since F3 is the fuse for the heater and the logic if I remember correctly.

Yes they are replaceable parts, part numbers are posted in several threads, and I'm sure support can send you one.

ok thanks

ok so i just got my new fuses today and put them into the rambo board. I had minor success in getting the board to turn on as well as the hot end and bed. However I am still having the issue of getting the arms to move along withthe extruder stepper motor too . I'm really confused....is it possible that all four of my motors are bad. that will be strange if that can be the issue

Earthbound · Post by **Earthbound** » Thu Jul 23, 2015 12:28 am

Is your RAMBo cooling fan running?

teoman · Post by **teoman** » Thu Jul 23, 2015 3:41 am

Check your fuses again.

You may have blown one again. Which sounds bad but actually is a good thing. Because it is either the fuse or an expensive component that will probably be very difficult to solder.

If it has blown you have a short somewhere.

KAS · Post by **KAS** » Thu Jul 23, 2015 9:40 am

Can you please post a picture of your RAMBo, End-stop switches, and the hotend?

Also since you haven't printed anything, check the dangling wires for the layer fan. Make sure those are not touching each-other or anything for that matter.

PJJ · Post by **PJJ** » Thu Jul 23, 2015 10:10 am

Earthbound wrote:Is your RAMBo cooling fan running?

actually the fan in the back of the rambo is not working either now that i think about it

PJJ · Post by **PJJ** » Thu Jul 23, 2015 10:12 am

teoman wrote:Check your fuses again.

You may have blown one again. Which sounds bad but actually is a good thing. Because it is either the fuse or an expensive component that will probably be very difficult to solder.

If it has blown you have a short somewhere.

ok ill check the fuse again. would it be the fuse even though the rambo turn on and displays everything

Earthbound · Post by **Earthbound** » Thu Jul 23, 2015 4:21 pm

RAMBo fuses and what they feed:
(at least, for v1.2 boards and probably true for earlier versions)

Fuse F4 (the big automotive type blade fuse) powers the heated bed.

Fuse F3 (the nanofuse closest to F4) powers the electronics, layer/PEEK fans and the nozzle heater. The LCD backlight is a good indicator for the condition of F3. This fuse is often blown by working on the hot end while the machine is powered on.

Fuse F2 (the nanofuse closest to the edge of the board) powers the stepper motors (axis and EZstruder). If everything else seems normal with your machine but the motors don't respond to commands then F2 may be blown.

Earthbound · Post by **Earthbound** » Thu Jul 23, 2015 4:22 pm

PJJ wrote:ok ill check the fuse again. would it be the fuse even though the rambo turn on and displays everything

Read the post directly above this one for why one thing works but the other does not. Motors and display are fused separately.

PJJ · Post by **PJJ** » Thu Jul 23, 2015 4:50 pm

Earthbound wrote:
PJJ wrote:ok ill check the fuse again. would it be the fuse even though the rambo turn on and displays everything
Read the post directly above this one for why one thing works but the other does not. Motors and display are fused separately.

ok thanks for the information. I am wondering before I change the f2 fuse again, just for future references; how can I better prevent the f2 fuse to not blow.

PJJ · Post by **PJJ** » Thu Jul 23, 2015 5:16 pm

KAS wrote:Can you please post a picture of your RAMBo, End-stop switches, and the hotend?

Also since you haven't printed anything, check the dangling wires for the layer fan. Make sure those are not touching each-other or anything for that matter.

the images are in the attached docement

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