I have this same error coming up when I print with the more flexible filaments: PVA, PP, TPU. It was maddening until I dug into the hardware a bit. There was no tension on the feeder (the indicator was all the way up), and the feeder was different in one aspect from the ones in the videos I'd seen. Instead of a hole to adjust the feed tension, there was a screw head (see photo). I tried to adjust the tension with this screw, but it just got tight and didn't adjust anything. I pulled the back off the feeder (again) and noticed a small space about the same size as the screw head just under the top of the feed enclosure. I loosened the tension assembly and turned the screw until it fit in that space. I replaced the back, and like magic, I was able to adjust the tension. For PP, I had to tighten it all the way for it to print consistently.
I have to say I'm a little disappointed that Ultimaker would ship a machine with the screws installed improperly on both feeders. From unboxing videos, I couldn't see any other machines that came out of the box this way. So if you have feed problems, check to make sure the tension is correct. If there is a screw head on top of the feeder enclosure, you'll have to pull the back off and place the head in the slot it's supposed to go in (see photo).
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kmanstudios
I would not say always. Here would be the thought behind that. Find out what angle your printer can do without supports. For instance, this is a two colour print without supports.
blanerobinson
I have this same error coming up when I print with the more flexible filaments: PVA, PP, TPU. It was maddening until I dug into the hardware a bit. There was no tension on the feeder (the indicator wa
WesleyE
That does not look good. Can you check a few things to rule out some causes? Can you check if you're in the latest version of the firmware? We improved the end of filament detection a lot since the fi
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jli756 0
This is probably the most obvious thing but I've been having this problem for a while and I found that some new spools often have tangled filament on the outer layers and during the print the filament can get stuck by itself on the spool, therefore causing the material to "appear empty".
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