Extruder is continuously pulled up

Just wondering if there is some sort of work around for this problem. Perhaps a better way of feeding the filement. Proving difficult to get printing done when it constantly fails and pauses.

This happens to me when I put the filament roll in a tight dryer or on top of the printer.
I solve it by making it easy for the filament roll to actually roll and feed the printer.
I lay it upright on the ground or hang it from the middle on a stick so it rolls more easily.

Usually the problem resolves.

Is it a feeding issue or is the top of your print not smooth enough?
Had same problem when printing the infill to fast.

I would say it is a feeding issue. In that once I acknowledge the error and feed some slack the print continues as normal. Sometimes it will go for hours other times only ten or so minutes.

Been happening continuously over the last week when I began to print again. I am using the roll handle thing on each side of the artisan enclosure. I have tried to lay the roll on its side as well, didn’t seem to help that much. I felt is was drawing too much friction on the ā€˜off side’ of the roll… assuming I understand your suggestion correctly.

Is this the sort of thing you are talking about?

Yes, sort of like that. I let it stand on its edge.
The important thing is free and easy flow of the thread into the feeder.

Yeah, I find that it works so long as I continue to feed some slack.

I wonder if I should think about a filament box / dryer. Maybe something like this…

This works great for me. Ptfe tube from Box to print head an no issues so far.

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I think I shall order one. I saw this pic in one of the reviews by Lennart J. Could this be the solution I am looking for?

Yeah, this is possible. I also ran it like this.

Bonus is you do not have to unload for Module change. Just remove the dryboxes with the head together.

But in my opinion the boxes do not sit perfekt there, maybe i will design a small jig for that.

I have my SnapDryer externally like this, it includes some really long tubing which is nice. Interestingly I’ve also recently just started having issues with the eSun filament and cardboard spindles (my first cardboard spindles) - I think the issue is the cardboard is not as smooth, so does not unroll so well. Especially as it gets nearer the end the small internal spindle thingy is fairly small, so the filament is very tightly wound. I’ve not had this issues with other hard plastic spindles - so I’m thinking I may end up re-winding the cardboard ones in the future.

I’ve designed a base to hold the SnapDryer, I’ll upload somewhere include a link here shortly (you can then mount/modify it for what works for you.

I’ve not thought about keeping it inside the enclosure, but that maybe a good idea as well to keep the length of the tube a lot shorter.

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This is the base in case it’s of value: Base for mounting the SnapDryer/PolyDryer filament dryer by sillyfrog - Thingiverse

I also use this part when the filament is over about 50% humidity: PolyDryer Air Exchanger by GWGILL - Thingiverse I think it helps to get the ā€œwetā€ air out.

I’m in Brisbane Australia, and it’s often fairly humid, so some of my older filaments needed a good dry, but now they are dry, and by keeping them in air tight containers and using the SnapDryer while printing, things have been much better.

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Do you also have the problems with the plastic tube in the middle? That worked for me with the esun.
But as mentioned, i have the boxes inside the enclosure with mich shorter ptfe tube. Maybe that makes also some difference.

Why you using the Air exchanger? I read the description on thingiverse that it is needed when there are no vents, but the dryer has vents? Is the Air exchanger not bringing more humidity in than let it out? My humidity in my house is like 50%. And i try to get my filament to 20%. Is there a measureable time benefit with the Air exchanger?

That is pretty nice… just curious to know what the snap dryer mount sits on (the beige structure that sits between the control unit and the base mount). I have mine sitting on the inside for now, fits very well and I can put a camera on it. Seems to be working quite well, no pull ups so far!

Also love your hanging thing that sits on the right side of the enclosure as well.

I use the air exchanger when the filament humidity is over about 50%. I’ve found the tiny holes on the dryer are not big enough to get the filament very dry when it’s already really ā€œwetā€. I’ve got most of my filament now down to less than 40% humidity - but not all of it (yet).

I’ve not actually measured, it’s just the ā€œvibeā€, but overnight, with the air exchanger, can generally bring it down to sub 50% without issue - with out it, the difference is minimal (maybe a few percent). It could also have been the relative humidity at the time, but I’m pretty sure it helped. I’m using the 5% (not the 10%) are exchanger.

That’s a left over plastic cover that was going to be thrown out that happened to be the right size (after some cutting) - it’s hollow under so the air can flow through from the main computer. That said, I’m considering the inside approach, the shorter tubes can only be a good thing! :slight_smile:

The thing on the side is a https://www.multiboard.io/ - using this part T-Nut, for 2525 profile, M4 screw, printable, drop in for Snapmaker Artisan by sillyfrog - Thingiverse to mount it to the side (with an M4 screw).

Some of the parts (like the glue stick) are something I’ve designed, and will get around to posting at some stage, if you’re interested, let me know and I’ll hurry up about it :slight_smile:

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I kept having this happen and I popped the hotend out, and re-snapped it in and it stopped. It’s probably too late but if anyone else runs into this issue, give that a try.

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Thanks… going to have to give that a try.