Rambo 1.4, X2 & Y2 steppers not moving

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This topic contains 14 replies, has 8 voices, and was last updated by  Michael McCallum 2 weeks, 3 days ago.

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  • #117807

    Mike
    Participant

    Just finished building my MPCNC. Bought the Rambo 1.4 from V1 so it came with the firmware already preloaded, all the other parts were ordered from Amazon. Eventually I will run dual end tops and have them all wired up but they are currently not plugged into the Rambo, as I have not flashed the dual Endstop firmware.

    The issue I am having is that the steppers plugged into E0/E1 (X2/Y2) are not moving at all. Steppers plugged into X1/Y1/Z are all moving correctly. I have tried moving the axis’ from the LCD and repetier host, same issue from both. To rule out bad stepper motors I swapped X2/Y2 motors and plugged them into X1/Y1 spot and they worked correctly. I currently have the belts removed to check if they are working. Set screws on pulleys are tight all around.

    -M119 returns X/Y/Z as open

    -Fuses are all fine

    -Steppers work plugged into X1/Y1

    -Power is supplied to the Rambo B/C power inputs from a 350W meanwell PSU

    Steppers: https://www.amazon.com/dp/B00QEYADRQ/ref=cm_sw_r_cp_api_i_h8aPDb53KX734

    #117814

    Kevin Russell
    Participant

    The standard firmware uses x1 and y1 only with the steppers wired in series.  Sounds like you are wired for dual endstops but using the standard firmware.

    2 users thanked author for this post.
    #117941

    Bill
    Participant

    -M119 returns X/Y/Z as open

    With the dual endstop firmware M119 should return X/X1/Y/Y1/Z, not just X/Y/Z. That’s the quick and dirty way to check you have the right stuff installed.

    #117946

    Mike
    Participant

    -M119 returns X/Y/Z as open

    With the dual endstop firmware M119 should return X/X1/Y/Y1/Z, not just X/Y/Z. That’s the quick and dirty way to check you have the right stuff installed.

    Makes sense. I’m not a complete newb when it comes to all this. Ive been using 3D printers for 3-4 years now that run on mini-rambo and einsy rambos.

    Before I got in too deep I wanted make sure the mpcnc would work without the Endstops that’s why I didn’t flash the firmware that shipped with the Rambo from V1. What I didn’t know is the basic firmware does not use the extra stepper plugs on the rambo board. Since you are supposed to wire them in series with all the X motors going to one and all the Y motors going to another. Now that I know this I will update to the dual endstop firmware and give it another go.

    #117948

    Bill
    Participant

    Just be aware that dual endstop firmware only uses the endstops to square the machine before use. Once you have it squared it will stay square until you power everything off and move things manually. You don’t really use it to set home as with a 3D printer, that is done by moving to where you want home to be then sending the G91 X0 Y0 Z0 command. You wouldn’t want to use the home function at that point since it’ll set home based on the machine parameters, not based on the work piece.

    #117960

    Jeffeb3
    Participant

    Now that I know this I will update to the dual endstop firmware and give it another go.

    The dual endstop firmware works without endstops. The one caveat is that it has softstops on by default. So it is limited to not go into negative X or Y. He does that to avoid crashing into endstops. You can disable those before you flash, or there is an mcode to do it (M122 is sticking in my mind).

    #118642

    David Weder
    Participant

    Just to be clear so I can benefit from the posts here, the stepper motor wiring for the Rambo v1.4 with the V1 Engineering Firmware is as follows?

    X Stepper to X Terminals, Y Stepper to Y Terminals, Z Stepper to Z Terminals, Second X Stepper to X0 and Second Y Stepper to X1 Terminals.

    Correct?

    #118649

    Ryan
    Keymaster
    #119070

    Michael McCallum
    Participant

    I too am having the same problem.

    I purchased the Rambo 1.4 with the dual endstop firmware.

    Seems it does not have the firmware installed.  When I send the mentioned M119, I get

    x_min: triggered

    y_min: triggered

    z_min: open

    So I assume I need to D/L the proper firmware for the dual endstops to the Rambo?

    Can I get the proper file and instructions, or even better, the link to how to?

    Thanks,

    Mike

    #119071

    Tom
    Participant

    Go to  the link Ryan posted above. About 1/2 way down the page is a link to the firmware page.

    Choose which firmware here. Should be “MPCNC_Rambo_T8_16T_LCD_DualEndstop”

    Follow instructions here https://www.v1engineering.com/assembly/software/

    1-1

    • This reply was modified 2 weeks, 4 days ago by  Tom.
    • This reply was modified 2 weeks, 4 days ago by  Tom.
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    1 user thanked author for this post.
    #119074

    Michael McCallum
    Participant

    Thanks, Did that no problem, but I have no clue how to D/L the software to the Rambo.

    Sorry for my ignorance…

    Thanks,

    Mike

    #119082

    Tom
    Participant

    https://www.v1engineering.com/marlin-firmware/

    Step by step instruction found here.

    #119095

    Michael McCallum
    Participant

    Arduino had a compile error and could not upload

    Arduino: 1.8.9 (Windows Store 1.8.21.0) (Windows 10), Board: “Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)”

    sketch\src\HAL\HAL_AVR\u8g_com_HAL_AVR_sw_spi.cpp:65:20: fatal error: U8glib.h: No such file or directory

    compilation terminated.

    exit status 1
    Error compiling for board Arduino/Genuino Mega or Mega 2560.

    This report would have more information with
    “Show verbose output during compilation”
    option enabled in File -> Preferences.

    #119097

    Jeffeb3
    Participant

    You’re missing the u8glib library. The instructions Tom posted show how to get that. There are multiple similar ones, so make sure you get the right one.

    1 user thanked author for this post.
    Tom
    #119163

    Michael McCallum
    Participant

    Thank all you guys for all the help!

    Up and running with the crown test.  Really cool!

    Looking forward to  the next challenge when I go to wood!

    Again THANKS ALOT

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