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Mods and experiences with our Robo 3D R1+ (1st Printer)

Discussion in 'Mods and Upgrades' started by Curtis Wolfe, Feb 27, 2017.

  1. Curtis Wolfe

    Curtis Wolfe Active Member

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    How about to test if I can heat up the bed heater and see if I'm getting that big power draw?
     
  2. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    If that 20A supply can really output 20A then it should work. I had a similar issue with my original Robo PSU, I could print with no bed heat but heating the bed would reset the printer (but I heat both bed and hotend simultaneously). That was solved by using a 480W (40A) power supply and then switching to an SSR controlled bed heater.
     
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That power supply is not big enough. You are going to need roughly 150w* just to source the bed.
    EDIT: if you mean ONLY heating the bed for a test... maybe. Probably.


    *the stock heater is not quite 150w, closer to 135-140 but ..
     
  4. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Forgot the bed was about 140W, I've had a 300W heater on my Robo for so long it was an oversight on my part to not check it first. at 150W the bed will draw about 12.5A of power.
     
  5. Curtis Wolfe

    Curtis Wolfe Active Member

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    I doubt that PS will be sufficient for that other kit either.
     
  6. Curtis Wolfe

    Curtis Wolfe Active Member

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    I'll give it a test to see if I can gain any information.

    I was looking at this power supply because I figure I'm going to have to replace the one in the kit and possibly the one on the Robo.

    http://www.ebay.com/itm/12V-DC-30A-...191d1b&pid=100677&rk=2&rkt=50&sd=322100961991

    Having a hard time finding a 400 or 450 watt one
     
  7. Curtis Wolfe

    Curtis Wolfe Active Member

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  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    We bought one like that second link (Then recycled the printer one for an alarm system :)
     
  9. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    I bought mine from Banggood a while ago, they never brought the power supply back when they sold out.
     
  10. Curtis Wolfe

    Curtis Wolfe Active Member

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    If it does turn out to be the PS I'll order two. One for the Robo and one for the kit.


    The good news here is since I've only been printing PLA so far. I can still print with out a heated bed. Prints look good. :)
     
  11. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Heated bed is really only needed for a few filaments, for me I use it as a panacea.
    Do I really need it? Not often
    Do I feel better using it? Yea
    :)
     
    SPyKER and Curtis Wolfe like this.
  12. Curtis Wolfe

    Curtis Wolfe Active Member

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    Been printing away all weekend. So much so that I haven't tested it the bed with that other power supply.

    What is the significance of the lights on the RAMPS board? Mine is blinking red while it's printing, temps 205/0
     
  13. Curtis Wolfe

    Curtis Wolfe Active Member

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    What is the significance of the lights on the RAMPS board? Mine is blinking red while it's printing, temps 205/0
     
  14. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    The LED's are ..1 each for each MOSFET output circuit (D8, D9, D10) and one for power on (I think)

    The Power LED will be on when the power to the board is on and the MOSFET ones will be on when the MOSFET circuit is on.
     
  15. Curtis Wolfe

    Curtis Wolfe Active Member

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    Well. That didn't last. Now I'm getting shut down with just the hotend.
     
  16. Curtis Wolfe

    Curtis Wolfe Active Member

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    I have a power supply and thermistor on the way. We'll see. Otherwise I'll need to replace the RAMPS board which I don't really feel like doing.

    ROBO suggested that I have a bad power connection to the RAMPS.
     
  17. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Tough call given the symptoms you detailed. The RAMPS is just more connections/wires to label and (re)land otherwise not tremendously complicated.
     
  18. Curtis Wolfe

    Curtis Wolfe Active Member

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    Yeah, I'm going through a melt down here. The symptoms are not consistent. It's overloading or over heating.
     
  19. Curtis Wolfe

    Curtis Wolfe Active Member

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    With Robo's suggestion to test the power connection to the RAMPS what's the best way to do that?

    I did notice when I was in there before that the green connection boxes (I'm not sure what they're called) do wiggle around.

    They seem pretty adamant that this is the issue.
     

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