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ROBO's Arduino + RAMPS Sheild 1.4 Full electronics control board

Discussion in 'Mods and Upgrades' started by Kevin Zhang, May 13, 2016.

  1. Kevin Zhang

    Kevin Zhang New Member

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    this might be a stupid question but i couldnt find an answer using search. the ramps board Robo has on sale, it's it preloaded with firmware where i can just, swap out the old board i have(i have a R1, brought June 2014) and good to go? i have some layer shifting issues, and tried every fix i can possibly find, i'm pretty sure the problem lies on the board at this point.

    thanks! =)
     
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The Arduino has the code, the RAMPS is just a shield :)
    If you buy the parts from them you still have to reload the correct firmware. ALL they are giving you is the cards.

    If you only swap the RAMPS board you DO NOT need to mess with your firmware. It will be fine.

    However, the new RAMPS board they sell is different (for the R1+) so you are better off buying a standard RAMPS 1.4 on Amazon. The R1 has a standard RAMPS 1.4 (so does the Beta) BUT ... the R1+ has a customized one.
     
  3. Kevin Zhang

    Kevin Zhang New Member

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    Thanks Mark! with that being said, i could just buy one off amazon for a much cheaper price and load the firmware myself i guess. sorry, im really bad with these things =)
     
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    You can buy both from Amazon cheaper (the Arduino Mega and the RAMPS 1.4).

    If you only swap the RAMPS card you don't need to do anything to your firmware. If you swap the Arduino then you must reload the firmware.
     
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Geof likes this.
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The only thing to watch is when you swap the RAMPS look at all the jumpers and put the jumpers on the same spot for the replacement board. There are a lot of them, but it is just a take your time and pay attention thing.
     
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  7. Kevin Zhang

    Kevin Zhang New Member

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    was looking at the same thing! i'll give it a shot. for some reason, when i brought the lead screw upgrade, Z rod was lifting 2x as much, and flashed the firmware to robo recommended version still doesnt work. while flashing firmwares back and forth, my PC froze at one point and got a failure message. after that, been constantly getting layer shifts.(and never got the Z rod issue resolved, had to put the old rods back for the printer to work) this is why i wanna try a whole new set of boards..
     
  8. Kevin Zhang

    Kevin Zhang New Member

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    and thanks again Mark, always helpful!
     
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    OK, with the new Z rods make sure you use the correct firmware. The CONFIGURATION.H should have this line in there:

    #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,800,723.38} // default steps per unit for RoBo 3D R1+

    If you leave it with the R1 version of the firmware it will be more than 2x too many steps on the Z
     
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  10. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Essentially an R1 with the leadscrew upgrade is an R1+
    (there are a few minor differences, but nothing important to the firmware)
     
  11. Kevin Zhang

    Kevin Zhang New Member

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    hm.. i flashed it with Lead Screw Upgrade Firmware from robo's instructions, didnt check the hex file tho. well, let me try to upgrade again tonight when i get home before i go ahead and buy the new boards. i'll let you know if it works. thanks
     
  12. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Just open up CONFIGURATION.H and check that line.

    DEFAULT_AXIS_STEPS_PER_UNIT

    See what you have on there.

    You will need the Arduino source to check this... you can't easily tell from the HEX file.
     
  13. Kevin Zhang

    Kevin Zhang New Member

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    welp, got the lead screw upgrade working, still having the layer shift issue..
     

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  14. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Not clear with that picture what the trouble is, another angle maybe?
     
  15. Geof

    Geof Volunteer Moderator
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    Its hard to see the defect, the corners and top look like over extrusion.

    Is the belt for x tight ?

    I learned from this forum it should twang not thud :)
     

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