No luck with my first print.... :/

Discussion in 'Calibration, Help, and Troubleshooting' started by Jaysen DAYDREAMn, Aug 23, 2016.

  1. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    I have a BB Dual Hybrid with titan extruders

    took sd card out. changed the name from 3dbenchy to benchy

    LCD still says NO SD CARD

    if i put the card in a use the LCD to find the file on the SD card and push the knob... nothing happens.

    If I load the same file in Octoprint it loads.. if I print from Octoprint, the printer goes through the motions like it should be printing but does not extruded.

    If i go under control tab in Octoprint and select tool the extruder functions. Both of them.

    Can anyone help?
     

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  2. JonGillam

    JonGillam Active Member

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    does the display flash or flicker when you insert the SD card and give you the "Card Inserted" message? What size of SD card are you using? I'm assuming the 8Gb one included in the BB kit? Try an SD card 2Gb or below or you could also backup the 8Gb, reformat it to Fat16 and then copy your files back on and try it again. I've had RepRap Discount Full Graphic displays give me inconsistent issues like this before with different cards and what not. Not the best QC on these, check out what happened on mine when I went to turn the connectors around during assembly.

    One entire side of the pin headers was never even soldered on. o_O
    [​IMG]
    Soooo glad I found it during assembly and not while in the commissioning phase!
     
  3. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    wowzers. I hope i don't have those kinds of issues going on.

    The sd card is the supplied card. kingston 8gb.

    display does not flash or say card inserted at all but.. if i highlight and click the "NO SDCARD" I can browse the files on the sd... :/
     
  4. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    pic attached
     

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  5. Dr Jeep

    Dr Jeep Well-Known Member

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    The not printing a selected file thing is a Marlin thing, if you unplug your RPI from the USB it will work, not sure how you are supposed to print from sd when you have octopi connected. I always print from octoprint though.
     
  6. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    Any idea why octoprint would print the file but not extrude?

    The nozzles and the bed are at temp. The print head moves all around but does not extrude.
     
  7. Dr Jeep

    Dr Jeep Well-Known Member

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    If you run it up to temp and try and extrude manually via the lcd does it work ?

    Have you set up the driver voltages ?
     
  8. Dr Jeep

    Dr Jeep Well-Known Member

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    Also double check the wiring, can we see a photo of your board wiring please ?
     
    Jaysen DAYDREAMn likes this.
  9. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    Thank you Jeep!!

    After installing the replacement faulty rumba, i did not check the voltage on the new supplied board.

    The bigbox would not print form the LCD and SD card but... I was able to load the file in octoprint and...

    We are now printing...

    There are still a few other issues but, i huge step in the right direction.

    Thank you so much.
     

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    Stian Indal Haugseth likes this.
  10. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    1) This is what my test prints look like,

    [​IMG]


    The really tall one was because i forgot after replacing the rumba to re-commission the printer and the Zsteps/mm were still set at 1600. I have gone through the commissioning steps again and the result is the very thin flatter prints. The one that actually finished without coming off the bed is in the picture below.
    [​IMG]
    this was the benchy file printed from octoprint. How do i fix this?
    2) The big box STILL will not print from the SD using the LCD. It still shows NOSD on the display. See below..

    [​IMG]
    [​IMG]

    Can you please help me resolve these issues? point me in the right direction?
     
  11. Mark Curry

    Mark Curry Well-Known Member

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    Can't see your pictures...?
     
  12. Dr Jeep

    Dr Jeep Well-Known Member

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    Ditto, can't see pics. The no SD error is almost certainly a faulty LCD board I'd say. You said once before you could get it to list prints but not print them, but now it says no SD ? what changed that behaviour ?
     
  13. Mark Curry

    Mark Curry Well-Known Member

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    Did you set your esteps to 400..? Mine are set to 800 as I have .9 motors and the coarser screw on the z lift
     
  14. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    here you go... sorry about that.
     

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  15. Jaysen DAYDREAMn

    Jaysen DAYDREAMn Well-Known Member

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    Zsteps are at 400. Motors on Z are 1.8.

    lead screws are 2mm pitch with 8 holes.
    sd card is new and formatted with new files. file has been renamed.
    Lcd does not indicate sd card inserted. Display says NO SD CARD as in the picture attached.
     
    #15 Jaysen DAYDREAMn, Aug 29, 2016
    Last edited: Aug 29, 2016
  16. Jasons_BigBox

    Jasons_BigBox Well-Known Member

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    Errr, if you have the 2mm pitch screws your steps per mm should be 1600 as per section 4.2.3 in the build manual.

    You mentioned your prints not sticking to the bed, are you using UHU stick as recommended? My first prints didn't stick as I'd not used UHU.

    Afraid I can't help with the SD card other than asking the obvious, is it the correct way up?
     
  17. Jasons_BigBox

    Jasons_BigBox Well-Known Member

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    Can someone double-check the steps per mm? I've never quite been able to figure out how this is calculated!

    One way to check your z-axis movement is to measure the position of the bed, move it an amount indicated on the LCD, 100mm for example, then measure the change is 100mm.

    There was a discussion about leadscrews as below but I'm not sure it will help too much!

    https://forum.e3d-online.com/index.php?threads/newer-8mm-pitch-leadscrews-nuts.1568/

    Check your stepper driver voltages too.
     
    #17 Jasons_BigBox, Aug 30, 2016
    Last edited: Aug 30, 2016
  18. Jasons_BigBox

    Jasons_BigBox Well-Known Member

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    OK sorry for my confusion......

    I found this useful calculator:

    http://prusaprinters.org/calculator/#stepspermmlead

    On my machine I have stepper drivers that offer 16 micro steps. In other words 16 steps on the driver per 1.8degree step on the motor. So, if yours is the same 16 micro steps then:

    1/screw pitch X 16 micro steps X 360/ 1.8 deg per step

    1/2mm X 16 X 360/1.8 = 1600 steps per mm


    Phew, got there eventually!


    Definitely check the distance travelled by the bed though!

    Good luck!

    Jason
     
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