ATX power RAMPS 1.4 . + 4 a4988 stepper drivers.
2 nema 17 connected to Z and Y
3 mechanical endstop
3 fans are connected to D8, D9 and D10 for test
USB connected
Marlin loaded
Repetier Host connected
Nothing is working
i've changed 1 of the a4988 stepper drivers with one that work for sure and nothing
I've uploaded the RAMPSTestCode.pdehttp://reprap.org/mediawiki/images/3/34 ... stCode.pde
All the board's led where blinking and all 3 fans are running as accepted but steppers do not move.
Can you help Pls?
Uri
steppers not working
steppers not working
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- rsz_ramps.jpg (93.33 KiB) Viewed 8389 times
Re: steppers not working
hi,i check the wire connection,it's ok.now ,you need to finish the trouble-shooting activities.
1.Check the jumpper cap below the A4988.all jumpper caps should be pluged in.
2.Check the motor wires.please re-plug the motor wires and tighten it.
3.Swap the motor wires of x axis with y,z or extruder.if it works ,the cable is ok.
4.Check the driver board.do you have 8825,you can use 8825 to test the board.
5.Do auto-home,and control the motor by LCD.
1.Check the jumpper cap below the A4988.all jumpper caps should be pluged in.
2.Check the motor wires.please re-plug the motor wires and tighten it.
3.Swap the motor wires of x axis with y,z or extruder.if it works ,the cable is ok.
4.Check the driver board.do you have 8825,you can use 8825 to test the board.
5.Do auto-home,and control the motor by LCD.
Re: steppers not working
Hi Eric
Thank you for your help
I took the a4988 from my RUMBA board (which is the reason that I'm changing to RAMPS) that never worked well, and also took one of my printer's motor to be sure as you can see the white a4988 connected to the board.
I did try all five steppers but no result.
No lcd yet, should get it by mail everyday
Might be an issue with 2 jumpers, changed them too
last time i tried to connect with Repetier i got a message that my device is limited to 115200 baud rate, so I changed the baud rate in both, Marlin and Repetier to 115200 baud rate, but no luck yet, however, I do get a message on Repetier's Manual Control tab that say "Command waiting" and the number increased as I keep trying to send commands, and I learnt that it is baud rate problem... but I set it up correctly, I think...
Any idea?
Uri
Thank you for your help
I took the a4988 from my RUMBA board (which is the reason that I'm changing to RAMPS) that never worked well, and also took one of my printer's motor to be sure as you can see the white a4988 connected to the board.
I did try all five steppers but no result.
No lcd yet, should get it by mail everyday
Might be an issue with 2 jumpers, changed them too
last time i tried to connect with Repetier i got a message that my device is limited to 115200 baud rate, so I changed the baud rate in both, Marlin and Repetier to 115200 baud rate, but no luck yet, however, I do get a message on Repetier's Manual Control tab that say "Command waiting" and the number increased as I keep trying to send commands, and I learnt that it is baud rate problem... but I set it up correctly, I think...
Any idea?
Uri
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- rsz_345.jpg (182.44 KiB) Viewed 8377 times
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- rsz_img_20150715_230254.jpg (188.16 KiB) Viewed 8377 times
Re: steppers not working
hi,how about reburning the firmware?please leave your mailbox,i will contact you.thx.
Re: steppers not working
I did that too...
My mail: achla226@gmail.com
Do I have to change anything on Marlin Configuration H.?
Would love to hear from you soon
Regards
Uri
My mail: achla226@gmail.com
Do I have to change anything on Marlin Configuration H.?
Would love to hear from you soon
Regards
Uri