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Thread: Show your MODS

  1. #181
    Technologist
    Join Date
    Oct 2014
    Posts
    134
    I have tried PETG twice (different spools) with the same odd results - the first couple of prints come out perfectly. Then all other prints refuse to stick to the bed. I have been really confused by this as it is happening with the exact same gcode as the good prints.

    I first tried with blue PETG, then white PETG. When I switch back to PLA Pro everything works fine.

    This is what I was printing http://www.thingiverse.com/thing:795954 I printed one set just fine in PETG, and then tried to print a backup and never could get it to stick.

  2. #182
    You might need to pop it in the oven at 70F to dry it out. It might have just absorbed some moisture.

  3. #183
    Technologist
    Join Date
    Nov 2014
    Location
    Brevard, NC
    Posts
    182
    If it is a moisture problem rather than putting it in the oven, you might try heating your 3d printer heat bed to 50 to 70C & placing the roll on the heatbed for a half hour on each side to pull the moisture out. I am not sure what temperature works the best.

  4. #184
    Technologist
    Join Date
    Oct 2014
    Posts
    134
    This time elapsed between the first two prints that succeed and the following prints that fail is less than one hour - moisture is not the problem.

  5. #185
    Quote Originally Posted by kd7eir View Post
    This time elapsed between the first two prints that succeed and the following prints that fail is less than one hour - moisture is not the problem.
    Could it be heat creep causing issues?

  6. #186
    Technologist
    Join Date
    Oct 2014
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    134
    Quote Originally Posted by plackslayer View Post
    Could it be heat creep causing issues?
    I guess that's possible

  7. #187
    This used to cause me issues but mainly with layers not bed adhesion. Worth a try checking into.

  8. #188
    Student
    Join Date
    Mar 2015
    Location
    Yes
    Posts
    15

    Direct drive Prusa i3V with Hexagon hotend

    Greetings all,

    Here is a little something I fabricobbled over the last couple weeks. I converted my older i3V from the Greg's wade extruder to a direct drive; mostly because I have gone through several of the big spur gears over the last year due to them getting a bit too hot inside the enclosure I am forced to use to keep ABS prints from warping.
    It took a bit of tweaking but it works, and much to my chagrin, it works pretty well. I was able to get it working the Hexagon hot end that originally came with the printer. It seems to push 3mm filament ok so far, (I have a lot of 3mm filament that I don't want to waste but will be switching to 1.75 as soon as I run through it all) All in all I'm pretty happy with it and thought I would share.

    IMG_6748 (2).jpg

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