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Unresolved All Metal Hot End configutation.h

Discussion in 'Troubleshooting' started by Peter Krska, Nov 27, 2015.

  1. Peter Krska

    Peter Krska Active Member

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    So I installed a All Metal Hot end I got from Robo 3d - I was wondering if someone has the configuration.h settings I need to change.

    I can install one of the Marlin files if it's easier. I just need to know which one.

    Old ROBO R1 Firmware
    R1 Beta

    http://download.robo3d.com/firmware/R1/R...

    R1 with Auto Level and 5/16 inch Rods

    http://download.robo3d.com/firmware/R1/A...

    I have the 5/16 rods
    I also installed previously the Marlin_3_14_14
    I do not have a LCD screen

    When I turn on the printer and heat my extruder it went up to 316 degrees. It failed to stop at the 200 degree mark I set. Why is this happening. Is it the configuration.h file settings?

    thanks
     

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  2. Peter Krska

    Peter Krska Active Member

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    What just happened? It states SOLVED but where is the solution. It doesn't seem to be pointing me to any link!!!!! This new system is not like the old system. Can someone please repost a link or something to the solution?
     
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Wow! I don't think any of the configuration.h settings would cause that.
    I have two betas with all-metal hotends (both E3D versions, but still) things you should possibly be changing in the CONFIGURATION.H are:

    #define TEMP_SENSOR_0 1 //robo

    really that only needs changing if you used a non-stock thermistor. If they gave you the hotend it likely has a stock thermistor and you don't need to change that.

    #define HEATER_0_MAXTEMP 240 //robo

    You can (and should) change this to something hotter like at least 250, but that would NOT cause the problem you see.

    #define BED_MAXTEMP 115

    You want that at something useful. With the old Beta heated bead this is a good setting. You might want to consider swapping the bed wiring out for ribbon cable style for safety.

    You might want to consider doing the PID tuning to get better temperature control (but still this would NOT cause what you see):

    http://reprap.org/wiki/PID_Tuning

    That is about all you would need or want to change.

    By the way, for 5 bucks you can add auto-leveling to that Beta (you buy the switches from Robo) and I can show you how to wire it in (takes about 10 minutes) and you can just use the standard R1 firmware with the tweak for the 5/16 rods..

    R1 with Auto Level and 5/16 inch Rods
     
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    What says solved?
     
  5. Peter Krska

    Peter Krska Active Member

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    So I have those settings. When I turn on the printer, even if I have the extruder off, the heat starts climbing up. What is suppose to turn it off or down once the temp is reached? Beside that, it shouldn't be heating up at all since I did not turn it on. I am using repeteir host set to 200 max, (280) in the printer settings. I immediately started heating up and did not stop, I manually stopped it at 288 by turning off the printer. What could be preventing the stopping of the heat from rising? Is it perhaps a different thermister and it ain't reading it right?
    I am using Marlin_6_10
     
  6. Printed Solid

    Printed Solid Volunteer Admin
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    If it is heating without you telling it to, then there is either something wrong with the wiring or you have a problem with the board. Double check everything.
    Why did you make the switch to a new hot end? Maybe whatever you thought was wrong with the old hot end is actually a problem somewhere else in the printer.
     
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  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yea that sounds more like a bad RAMPS than bad software.
     
  8. Peter Krska

    Peter Krska Active Member

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    So I contacted Robo 3D Support and they stated that my wiring is incorrect. I re-checked and my heater is going to D10 and my extruder thermistor is going to the right connection. Now what?
     
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Is the extruder actually heating or is the thermistor just reading high (when it is not)?

    If the extruder is heating I don't see how that can be anything other than a bad RAMPS board.
     
  10. Peter Krska

    Peter Krska Active Member

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    So I decided to rewire and I think I had something wrong. Oops!

    and I broke the thermistor. Is it a typical 100k?

    I am using the new hexagons all metal hot end. What is the thermistor? Can I use any 100k thermistor I find?
     
  11. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    Typical EPCOS 100K or similar
     
  12. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Get the metal stud thermistor and forget about breaking them.
     
  13. Peter Krska

    Peter Krska Active Member

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    Never heard of that. I googled but did not find using those words: metal stud thermistor.
     
  14. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Printed Solid and Mike Kelly like this.

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