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Partially Solved Now I can't print at all - Time to throw in the towel.

Discussion in 'Troubleshooting' started by hippy1970, Jun 8, 2017.

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  1. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If you need to change the extrusion multiplier then your extruder needs to be calibrated. Plain and simple :)

     
    #41 mark tomlinson, Jul 12, 2017
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  2. hippy1970

    hippy1970 Member

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    Well I almost had a working printer. I really had my hopes up and then it stopped. No warning or error. Just stopped. I had to reset the connection to get any sort of communication.
    I think I beer may help


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    #42 hippy1970, Jul 12, 2017
  3. hippy1970

    hippy1970 Member

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    I'm trying again. One last time ad it's almost 10pm and my wife is likely to divorce me if I don't stop soon. Especially as in away with 'the guys' this weekend


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    #43 hippy1970, Jul 12, 2017
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Sounds like a bad USB cable (or the aurduino going out).
    The Arduino is pretty sturdy, I have only replaced one due to a failure.
    Still, a possibility.
     
    #44 mark tomlinson, Jul 12, 2017
  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Yep, time to hit the local pub :)
     
    #45 mark tomlinson, Jul 12, 2017
  6. hippy1970

    hippy1970 Member

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    [​IMG]

    That's the last three attempts. The bottom left was the one that stopped. The top one was with extrusion multiplier back to 1.
    I've now reduced it to 0.9 again and raised the z offset by 0.1mm
    Enough for tonight though.

    Thanks for your patience guys.
    I'm at a Ham Radio / Maker Meet in Germany this weekend.
    I may just buy a new printer...


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    #46 hippy1970, Jul 12, 2017
  7. Geof

    Geof Volunteer Moderator
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    Bottom left looks the best but still looks either much to hot, or over extruded.
     
    #47 Geof, Jul 13, 2017
  8. hippy1970

    hippy1970 Member

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    [​IMG]

    This was printed with the extrusion reduced to 0.85
    The top right corner was starting to warp and it still looks pretty ragged to me.

    Currently trying a slightly higher Z offset and looking better so far.

    Assuming I can get it to print these parts I'd then like to do something with the bed. There is no real adjustment to level it.


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    #48 hippy1970, Jul 13, 2017
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    No, the original beta was crap in that respect. Most folks added spring-loaded screws to the corners (where they mounted to the rails) and adjusted it that way
     
    #49 mark tomlinson, Jul 13, 2017
  10. hippy1970

    hippy1970 Member

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    [​IMG]

    The finished print. Suggestions on how to improve it greatly appreciated.


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    #50 hippy1970, Jul 13, 2017
  11. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If you did not do it, see my previous post on calibrating the extruder. The top looks not bad, but it still looks like over extrusion.
     
    #51 mark tomlinson, Jul 13, 2017
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  12. hippy1970

    hippy1970 Member

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    Great. I'll do that as soon as I get a moment.


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    #52 hippy1970, Jul 13, 2017
  13. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If it is far enough off that could be the rest of your issues.
     
    #53 mark tomlinson, Jul 13, 2017
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  14. hippy1970

    hippy1970 Member

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    I've just attempted to calibrate the extruder. Strangely the result are inconsistent. I made sure the multiplier was set to 1. Marked 110mm and extruded 100mm. Did the calculations and adjusted the extrusion rate in the eprom. Tried again and it only extruded 60mm. Went back to original setting and did two 100mm extrusions without change in between. One was 105mm but the second was more like 120mm. Hard to be exact as my 100mm mark disappeared into extruder.

    Have I missed something?


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    #54 hippy1970, Jul 18, 2017
  15. Geof

    Geof Volunteer Moderator
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    I mark around 120 to 150 mm of filament (because your line is disappearing you cant get an accurate measurement). I'd give it another shot. Also I do not suggest saving to EEPROM unless its temporary. Changing the value in the firmware is my suggested way of doing it. Do the test 5-10 times, average the numbers that is the number to plug into the equation. The outputted number from the equation goes int he E-Steps portion of your firmware

    It took me multiple times to get it right my first time doing it :)
     
    #55 Geof, Jul 18, 2017
  16. hippy1970

    hippy1970 Member

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    Ok. I'm altering the steps on the firmware page. Are you saying I don't have to save it until it's right? Just close the page?
    I assume I don't need to reboot the arduino controller each time?


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    #56 hippy1970, Jul 18, 2017
  17. Geof

    Geof Volunteer Moderator
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    Every time you flash the firmware you need to verify and upload to the printer. After this is done successfully you need to clear EEPROM and save to revert to firmware settings. Then check to verify your machine is extruding 100mm of filament
     
    #57 Geof, Jul 18, 2017
  18. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    M502
    and then
    M500

    Just to be clear
     
    #58 mark tomlinson, Jul 18, 2017
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  19. Geof

    Geof Volunteer Moderator
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    bahahahaha I get it ;)
     
    #59 Geof, Jul 18, 2017
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  20. hippy1970

    hippy1970 Member

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    Sorry, I'm even more confused now. I'd assumed that by changing the setting and saving to eprom I was changing the firmware and making the change permanent. Why clear the eprom if I've just written the new settings to it...?


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    #60 hippy1970, Jul 18, 2017
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