Steppers Do Not Move (but vibrate/make noise)

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This topic contains 19 replies, has 4 voices, and was last updated by  Terry 3 months, 2 weeks ago.

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  • #98624

    Terry
    Participant

    Assembled my electronics today to see if everything arrived in working order and have ran into trouble. I was able to download and flash the firmware. I didn’t change anything in the firmware code, just verified and uploaded it.

    When I try to move the steppers with the LCD or with Pronterface they just vibrate/make noise, but the shaft doesn’t turn. When the steppers are disabled the shafts will turn freely.

    Board: Ramps 1.6 & Mega 2560 Stack

    Firmware: Marlin-MPCNC_Ramps_T8_16T_LCD_32step_DualEndstop

    Steppers: https://www.aliexpress.com/item/5pcs-4-lead-Nema17-Stepper-Motor-42-motor-Nema-17-motor-42BYGH-1-7A-17HS4401-motor/1500927219.html?spm=a2g0s.9042311.0.0.118a4c4dtd56En

    Drivers: DRV8825 (I tuned voltage pots to 0.75V) https://www.aliexpress.com/item/3D-Printer-Parts-StepStick-A4988-DRV8825-Stepper-Motor-Driver-With-Heat-sink-Carrier-Reprap-RAMPS-1/32965199683.html?spm=a2g0s.9042311.0.0.27424c4dFz7CTV

    Power Supply: Kastar (https://www.amazon.com/gp/product/B003TUMDWG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1)

    Output of M115
    FIRMWARE_NAME:Marlin bugfix-2.0.x (Github) SOURCE_CODE_URL:https://github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:V1 E CNC EXTRUDER_COUNT:1 UUID:cede2a2f-41a2-4748-9b12-c55c62f367ff
    Cap:SERIAL_XON_XOFF:0
    Cap:BINARY_FILE_TRANSFER:0
    Cap:EEPROM:1
    Cap:VOLUMETRIC:1
    Cap:AUTOREPORT_TEMP:1
    Cap:PROGRESS:0
    Cap:PRINT_JOB:1
    Cap:AUTOLEVEL:0
    Cap:Z_PROBE:0
    Cap:LEVELING_DATA:0
    Cap:BUILD_PERCENT:0
    Cap:SOFTWARE_POWER:0
    Cap:TOGGLE_LIGHTS:0
    Cap:CASE_LIGHT_BRIGHTNESS:0
    Cap:EMERGENCY_PARSER:0
    Cap:PROMPT_SUPPORT:0
    Cap:AUTOREPORT_SD_STATUS:0
    Cap:THERMAL_PROTECTION:1
    Cap:MOTION_MODES:1
    Cap:CHAMBER_TEMPERATURE:0

    Output of M119
    Reporting endstop status
    x_min: TRIGGERED
    x2_min: TRIGGERED
    y_min: TRIGGERED
    y2_min: TRIGGERED
    z_min: open

    #98629

    Ryan
    Keymaster

    Did you add the jumpers under the drivers?

    1 user thanked author for this post.
    #98630

    Terry
    Participant

    Yes, three jumpers under all five drivers.

    #98631

    Ryan
    Keymaster

    G01 X30 F400

     

    Try that what happens?

    1 user thanked author for this post.
    #98633

    Terry
    Participant

    X Steppers vibrate/make pulsing noise for about 3 seconds. Afterwards LCD display shows X position as 30.

    #98634

    Ryan
    Keymaster

    Figured out why your endstops say triggered, are they not connected? Are those weird heatsinks shorting out your drivers?

    1 user thanked author for this post.
    #98635

    Terry
    Participant

    I don’t have the endstops connected as I’m just testing, is this an issue? If so, how do I test without endstops?

    I shut it off, took of heatsinks and retried and got same result.

    #98637

    Ryan
    Keymaster

    Yes you need the endstops when using dual endstop firmware. Wired NC, you can short them if you know what you are doing, or edit the firmware but I suggest you just do it correctly an plug them in.

    1 user thanked author for this post.
    #98638

    Terry
    Participant

    I hooked one of the steppes up to my 3d printer extruder and it worked fine, so it would appear that it is not an issue with the steppers.

    #98639

    Terry
    Participant

    Ok, I’ll wire up the endstops and report back.

    #98642

    Terry
    Participant

    Ok, I jumpered the X and Y endstops and reran M119 to confirm.

    SENDING:M119
    Reporting endstop status
    x_min: open
    x2_min: open
    y_min: open
    y2_min: open
    z_min: open

     

    Stepper behavior did not change, still just vibrate and make a pulsing sound.

    #98649

    Barry
    Participant

    Steppers have to be wired normally closed.

    #98651

    Terry
    Participant

    How do I wire the steppers differently?

    #98654

    Deek
    Participant

    I think Barry meant End Stops need to be NC.

    2 users thanked author for this post.
    #98655

    Terry
    Participant

    I’ve tried the endstops both open and closed. When they’re open it shows is triggered, when they are closed they show as open. What am I missing?

    #98656

    Barry
    Participant

    Okay, if it says open, then it’s correct.  If you manually push one of the stop buttons while issuing M119, that one should show triggered.  If that’s the case and you’re still not getting movement, then it’s time to test your stepper wires.  The growling already has me thinking this is the case anyway.  One of the pins isn’t connected at one of the connectors.

    1 user thanked author for this post.
    #98659

    Terry
    Participant

    I’ve reconfirmed that M119 is working correctly. When I remove a jumper it shows triggered, when I reinstall it then it shows closed. Still no movement on the steppers.

     

    I’ve pulled out the extension cable I purchased from V1, and tried just the OEM cable. Still no movement on the steppers.

     

    I pulled the OEM cables and checked continuity of each wire from one plug to the other for all five cables, all had good continuity. Reconnected everything and still no movement on the steppers.

    #98660

    Terry
    Participant

    Matt K. on facebook suggested checking the cables to ensure they have the inner wires cross over. I’ve confirmed that the blue and green wires cross over from one end to the other.

    Attachments:
    #98663

    Barry
    Participant

    Okay, unplug one of the steppers.  Get a piece of wire to jump two of the pins on the stepper cable and give the shaft a spin.  If it spins freely move one end of the wire to another pin and try again.  When it gets hard to spin, that’s a pair.  It could be that the steppers just aren’t wired correctly on their cables.  I don’t think the crossed center pins is right, but I don’t have that kind of stepper.

    2 users thanked author for this post.
    #98664

    Terry
    Participant

    Ok, I got it fixed! The green and blue wires were not supposed to be crossed it turns out. I pulled these out of the plug, flipped them and plugged it all back in and it all works now! Thanks everyone for your help!

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