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Solved Printer fails intermittently

Discussion in 'Troubleshooting' started by Shane Simino, Feb 26, 2017.

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  1. Shane Simino

    Shane Simino Member

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    So I'm not even sure where to start. One of my Robo R1 Plus running off a 1.4 graphic smart display. It keeps failing after an hour or two. The printer is just sitting there and the screen says waiting to heat. Temperatures on the display are where they left off, but there really isn't any heat at all. I'm not sure what to test; I think I'm going to start a print from my computer and see what that does. From what I see, it could be the graphics display, a loose connection, a bad temperature reading, my ramps board, I just don't know. Anyone experienced this?
     
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That about covers it. You are going to need to experiment to sort out what the real issues are. Any or all of those are possible culprits. You really need to see what (if any) errors are being raised by Marlin and with the LCD that is often impossible (some errors it will display, but usually only fatal ones).
     
  3. Shane Simino

    Shane Simino Member

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    Ah damn it Mark. I was so counting on you to just tell me what is wrong! Like the robo whisperer or something. Lol
     
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  4. Geof

    Geof Volunteer Moderator
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    Hey Shane, hook back up to USB and look at the gcode terminal. There should be an error in there somewhere buddy
     
  5. Shane Simino

    Shane Simino Member

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    Oh excellent. I did not know that. I will do that again tomorrow unless it logs the history? Thanks Geof.
     
  6. Geof

    Geof Volunteer Moderator
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    It does not, if you close the window it's gone
     
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  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    However, it stores the chatter to/from the printer for the session you are connected so ... when you get the error do what @Geof suggested :)
     
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  8. Shane Simino

    Shane Simino Member

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    Ok. So here's my update. The problem has gotten worse and is more obvious. My extruder motor is stuttering. So now I believe it's just a bad driver and of course I don't have any. I think I'm going to order that kit off amazon with everything for parts.
    https://www.amazon.com/OSOYOO-Printer-Controller-Stepper-Heatsink/dp/B0111ZSS2O
    It doesn't come with thermal paste. Does anyone know if the heatsinks come mounted on the drivers already?
     
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    It does not use thermal paste for those heatsinks, at least not how you think.
    The heatsinks come with a backing that you peel off and then stick them straight on the stepper driver chip. The glue/adhesive is your "thermal paste" in that case.

    As for them already mounted... YMMV.
    Some are, some are not :)
     
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  10. Shane Simino

    Shane Simino Member

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    Ok. Perfect. Thanks Mark.
     
  11. Geof

    Geof Volunteer Moderator
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    I've yet to get any in the kits that have been mounted, just peel the cover off the tape, slap her on there :D
     
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  12. Shane Simino

    Shane Simino Member

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    Ok, so the solution was that the stepper motor was shorting out. The wires were rubbing on the head of the extruder bolt where they are wire tied to the extruder. The wires are damaged, but I fanned them apart and it's running perfectly again. Thanks guys.
     
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  13. Geof

    Geof Volunteer Moderator
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    Make sure you replace or wrap up those wires to avoid further headache
     
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  14. Shane Simino

    Shane Simino Member

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    Yes sir. That's tomorrow's project. What fun. lol
     
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