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  1. My apologies -- this looks like pilot error. I first bought this spool of filament about a year ago, and did a little experimenting with it on a couple of very simple things, and then didn't really use it for any projects. I think during that initial use I created a new profile, forgot I did that, and then a year later erroneously thought this was an official Cura profile. I just created a clean, brand new project, used the default generic PLA profile, and retraction works fine. Again, sorry for the false alarm.
  2. I'm a little new to Cura. Maybe I did clone a profile and modified it, but I don't know how I did. Regardless, it seems to me that if I have the retraction box checked, then retraction should work. I'm in the middle of a long print, but I'll try this again, validate the retraction not working, and post the profile.
  3. To be clear, I'm not suggesting it's locked out. I can (and did) check the retraction checkbox -- it just isn't actually enabling retraction during the print. As I said in my first post here, assigning the extruder to "Ultimaker PLA" settings causes the retraction to work, and the ColorFabb prints very nicely.
  4. Here's a screenshot of how I assigned a particular extruder to use ColorFabb PLA/PHA by clicking the "Material" pulldown. But it won't print well, because retraction seems to be disabled when I select that.
  5. Oops -- hit submit too soon, and forgot to enter my specifics: This is ColorFabb PLA/PHA filament. Cura version 3.2.1 (MacOS X, 10.13.3) Ultimaker 3
  6. I bought a spool of orange ColorFabb filament, and this is my first real try printing with non-Ultimaker filament. I was pleasantly surprised to see that there were presets for ColorFabb, and I used them. I got terrible results -- oozing, stringing, knotting. I tried multiple prints varying the print temperature, but saw the same thing. Then I put my fingers gently on the filament entering the feeder, and noticed that there was absolutely no retraction happening. None. I double checked, and "Retraction" was selected in the Cura settings. So I set Cura to Ultimaker PLA (forcing the temperatures and speeds to be the same as before, and printing worked much better: Is it possible that there's an error in the ColorFabb presets? Is there something that needs to be done other than checking the "retraction" box to get retraction going for non-Ultimaker filament?
  7. I contacted fbrc8 for support on this, and even though they are closed on the weekend, Erin (Co-Founder of fbrc8) helped me diagnose this. She was fairly sure this was the wifi card, and she was right! Erin sent me very detailed instructions on how to remove it, and after I did, the UM3 started right up! They are processing a return for my wifi card, but I'm happily printing using the wired LAN connection. So I've learned a couple of things: 1. If your UM3 spins the fans up for a couple of seconds and then the printer acts dead, you probably have a defective wifi card that is drawing too much power. And 2. fbrc8 (and Erin in particular) is awesome!
  8. I have a 1 day old UM3. First day I was able to power it on, attach it to wifi, calibrate it, and make my first print overnight. In the morning I came in, took off my print, and realized the UM3 wasn't on the wifi anymore. So I turned it off, and turned it back on again using the power switch. Fans spun for a couple of seconds, and then turned off. I waited a minute or two, but no activity anywhere -- dark screen. Screen never came on. Powered off and on again with the switch. Same thing -- fans gave a quick spin, shut down, and no more signs of life. I waited tens of minutes this time, so this isn't a matter of patience. I was hoping for a weekend of fun with my new toy, but now it's basically a rock. Someone else seemed to have a similar problem and removed the wifi card -- is that really the next step for me? Any recommendations would be appreciated.
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