After working through my bed adhesion issues today, I ran into something else. I tried to make a print and after about 20 minutes, there didn’t seem to be any more filament feeding through. I decided to pull it out and feed new filament in. After that, I was able to print more, but again it failed shortly after. I thought it could be something with my file so I tried to print 3DBenchy and it too failed after about 20 minutes. During the print though I heard some “crunching” that I haven’t heard before. I pulled out the filament and noticed a gouge in it. I sliced this off, fed it back into the head, and had it auto feed in. I had it auto-feed a second time and then I heard the crunching and no more filament was coming out of the hot end. I pulled the filament out and found the gouge as well as a bunch of small filament particles in the head. I don’t believe that it is an issue with the hot end since I can push the filament through without issue. I think there is something up with the feed roller or the pressure being applied to it.
Are you using the default snapmaker filament mount? Your picture looks to be enclosure-less.
When it stops feeding, can you see it binding or the print head pulling hard on the filament?
The default filament mount and routing for all 4 machines leaves a lot to be desired. It can cause binding, kinking, and breaking. There are a number of filament routing projects on thingiverse.
With my v1, the binding was usually preceded by a “clicking” noise. The spool would bind, then release, and the release would make the filament on the reel snap. After a few of those, it bound up enough to stop feeding entirely.
I don’t believe It is a heat issue. I am using 200 for the nozzle temp and have used that before without issue. The z offset works at the start but sometime in the printing it just stops…the filament gets crushed and won’t feed anymore. So I believe it to be in the print head or the filament itself. It is snapmaker filament that I received with the machine.
Yes I am using the snapmaker 2.0 filament mount and no I am not using an enclosure.
I do not see any binding or pulling. Rather it just “stops” working. The filament roll is free to move and there is little to no tension on the filament.
I am starting to think it is the filament itself. I have ordered some new filament of a different brand. I guess we will see if that does the same thing. Fingers crossed it doesn’t.
I had similar problems couple of days ago. It printed for about 15 minutes and then no filament came through. It was still my first filament roll from snapmaker. I read a lot of threats were people mentioned the bad filament from snapmaker. And i know that pla is hygroscopic (it adhese mosture from the air). So after failing i tried a new roll i already ordered. It went perfect straight away. Didn’t changed a thing (only the pla roll ).
I ran into the same problem today. After printing blue PLA from SnapMaker for about 2 hours in normal quality it just stopped feeding filament, but the print head ran through the whole body. I unloaded the filament and saw the same marks as illustrated. I tried to feed grey filament with which I have printed a dozen hours. It did not load correctly. In the end I heated the nozzle to 200°, stuck a strand of electric wire with 0.2 mm diameter into the nozzle and left it there while cooling the nozzle down to 80°. Then I opened the filament transport and yanked the filament out. Since then the printer is working fine again. I presume there must be some truth in the statement, that SnapMaker filament quality is worse the SnapMaker2 printer quality!
I think that some of the later shipments might be a little better but it sounds like its still an issue to this day. its “usually” only the spool that came in the snapmaker case with the machine, although some people have had issues with other spools.
I had the tainted garbage permanently fuse to my print sheet and i couldnt even use a heat gun to get it off. For fun i heated it so high the coating of the print sheet started bubbling but the “filament” was unaffected. it was like a cross between tar and rubber.
it will also screw your nozzle up something fierce if you are unlucky. in my ignorance after i became better at 3d printing i thought maybe i was just bad ill try it again and it ruined my good microswiss nozzle
They should let nasa get some of that for their space suits.
Snapmaker said that they learned that the material had a qc problem and changed suppliers after that, but i guess most of the boxes were already closed up and shipping so they didnt change it out.
I saw one correspondance where someone said this filament not printing right and its doing x and y and they literally said “well dont use it then”
technically the PLA from their store should be OK, but to be honest i found it to be low quality. However, their petg was actually pretty nice.
UPDATE: I put some time into printing this weekend and I found a few things. First I decided to order some different filament. I purchased some from Hatchbox and it was delivered earlier this weekend. I tried to print with it and it ended up having the same issue straight away. After that I figured the nozzle was to blame. This should have been one of the first things I checked out in retrospect. I noticed when trying to do prints or load the filament, instead of a nice “stream” of filament coming out it was more of a “blob” that was getting pushed out and stacked to one side of the nozzle.
I swapped hotends out with one I had on hand and have been printing nonstop 20+ hours with the Hatchbox filament with no issue. I decided to take the hotend apart pulling the nozzle off and once I was able to break it free I found that it was just full of the material. I fully suspect that the 20ish hours I was able to print with the snapmaker filament just caused it to clog up. I really suspect it was the white filament that I got from them since that was nothing but trouble from the start. I have 3 spools of filament from snapmaker, but I don’t trust It enough anymore to use it so it is being put aside in favor of Hatchbox for now.
One thing I think “I discovered” is that when there is alot of filament on the reel it gets really heavy and I think it causes it to bind.
I printed a new reel that was lighter weight and loaded it with less filament and that helped…
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