Titan not extruding correctly

Discussion in 'Titan' started by TstarkEngineering, Apr 29, 2016.

  1. mike01hu

    mike01hu Well-Known Member

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    If you are using 1.75mm filament you will need to insert a short length (25mm) of 2mm internal diameter PTFE tube into the hole in the lever to improve the centring of the filament with the hob, A slight chamfer on the end angled in line with the hob curve will ensure a good alignment for softer filaments and make it easy to fit; the tube is that same as used for Bowden feeds.
     
  2. Rodolfo

    Rodolfo Member

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    Thank you very much! After posting my cry for help, I've done exactly what you said. It seems to be perfect!

    Thanks again!
     
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  3. cozmicray

    cozmicray Member

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    Titan & E3D V6 (with newer gear) just chewing up filament.
    Tried 3 different filament rolls.
    Just grinds a notch in filament (1.75mm)

    Help?
     
  4. mike01hu

    mike01hu Well-Known Member

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    There may be a couple of reasons. If printing starts then it may be that your retraction settings are to large; for the V6 retraction must be less than 2mm as this can cause jamming and grinding will be the result. If this happens immediately you start printing I suspect it is too small a first layer height and this will cause too much back pressure in the nozzle, again causing grinding. All of this assumes that the nozzle temperature is correct.
     
  5. cozmicray

    cozmicray Member

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    Not even printing -- just trying to get good squirt and calibrate feed?
    not doing retraction except to re-install filament or change filament.

    Noticed temperature wacky
    but even if I set temp to 200C measured on thermocouple
    still get bad squirt

    ??? acceleration, Jerk ???
    Titan extruder: what should be settings -- step/mm , accel, jerk

    =====DATA
    Repetier & accurate thermocouple meter
    5 is 100K thermistor - ATC Semitec 104GT-2 (E3D supplied)
    TEMP_SENSOR_0 5

    set read
    170 136.6
    180 146.3
    190 155.3
    200 165.0
    220 182.0
    230 191.5

    Temp C resistance K

    140 131
    150 101
    170 62
    190 39
    200 31
    210 26
    260 15

     
  6. cez

    cez Well-Known Member

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    Did you solve the issue?
     
  7. fpex

    fpex Well-Known Member

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    Yes, I have several titans (BigBox and not) working well. Key is the proper hob and be careful in fastening the screws
     
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  8. cez

    cez Well-Known Member

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    Could you elaborate on the screws?
     
  9. Joey Mayday

    Joey Mayday Member

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    Hi All,
    - Anet a8
    - Titan
    - e3d v6
    - Marlin extruder set to "5" (which was default) which matches E3d guide.,
    - Adjusted tension screw .5 turn of a time to find a sweet spot to no avail.

    Description:
    Begins to extrude filament then after about 15-20mm it begins to grind. if the E steps are defined low enough (E95) it doesn't fine and works correctly but obviously not calibrated. I have noticed that as soon as the filament begins to extrude past the "pool" point it does seem to get more difficult to extrude by hand (but this just could be me pushing too hard) but still appears to extrude similar to my old setup.

    I'm having the same issue as OP except I have the correct gear. Initially I found that the filament was offset in the extruder hob and needed to adjust the stepper gear to make room. Which helped but I'm still grinding filament.

    If I have the stepper set from 100 to about 180mm it's fine but above that it begins to grind.

    I'm using a pancake stepper which appears to be working correctly (not sure if it's something I should be looking at there)
    Not really sure where to go


    HALP!
     
  10. Joey Mayday

    Joey Mayday Member

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    Update! !!!!
    Well I'm hoping anyway. Lowered the the feed rate to 5mm/s and it seems to be ok!

    Glad I saw this thread.

    Dear E3D dudes, you need to add this to the instructions! (if it's there then I missed it somehow)
     
  11. kazik

    kazik New Member

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    Guys,

    I think have the same problem with my Titan and v6. I'm fighting with that for some time and no clue where is the problem. The print is going fine for about an hour and after that it stuck (picture below). Normally filament extrudes smoothly when pushed by hand. Any clues? Maybe Titan requires some certain settings?

    Any help much appreciated.

    Greets

    Marcin

    [​IMG]
     

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