Is every one of your spools fucked like that? I only order the ones with perfectly rolled spools (they even use it as one of their main selling points)
3 Likes
Yah it depends a lot on the brand prusa I think introduced the precise rolling like shown in the sunlu picture. I think esun has been the worst regarding bad spool wrapping and usually cheaper than others but mfg change their offerings and process over time so it may have gotten better.
Filament does not come tangled… even if it may be messy.
There are plenty of articles that talk about this, but at the end of the day it usually occurs if you someone let go of the end and it slides under another strand. I’ve done this before, and it’s definitely frustrating. Now I always keep a grip on the end unless it is fed into the extruder or inserted into secure holders on the spool.
The tangle will go on indefinitely through the entire spool unless you find it and pull the end out from under the below strands (as I see in the photo above).
Even a messy spool will unwind, or else it could not have been wound in the factory.
Edit:
It is possible for a factory tangle to occur at the very end of the coil before it is wrapped and shipped. If this does occur, the tangle will be on the outside. I check spools by pulling several windings loose, moving them to the side of the spool without letting go of the end. If there is a tangle, you’ll see the outermost strand pull against it. Simply pull the strand back through, re-wind, and you should be good to go.
I hope this makes sense! I can post a video sometime as I know this is frustrating - especially hours into a print.
While I can agree this can happen because of unwinding and introducing a “knot” I’ve had it happen too far into a roll without my intervention to believe it is never mfg error and those mfgs that focus on keeping the spool clean and wrapped in order seem to never suffer this problem (in my limited experience)
To be fair I’ve had some of those snags on the spool as a result of the filament being mostly wound into the edge of the roll at the end so when I started printing with it I pretty quickly got into the deep section of the spool even though there was plenty of filament below there (basically very uneven wrapping)
1 Like
No, a while ago I dropped it and it made a huge mess. At the time I thought I should fix it. Then I forgot to and now it’s a pain in my ass
2 Likes
It is possible for those “surface tangles” to slowly pull gear through the roll without issue. Then suddenly the windings are too tight, and extrusion issues occur.
1 Like
If anyone is good in fusion and can help me past a problem please pm me.
1 Like
Not in Slic3r there isn’t. There is an extrusion width setting, but that also changes the line spacing, thus not fixing the perimeter-adhesion problem.
in my experience, I’d make the layer that attempts to print the circle in space a solid layer and use bridges, if supports were not acceptable… BTW… I hate supports! CURA has excellent bridge settings… and in the end you break thru that 1 layer with a punch or a drill and it’s perfect…
1 Like
I’ve had that happen… I unspool a fukton… clip the filament… and while the print, prints… I unfuk the spool and then get fucking ready… pause the print… unfeed the left -over filament… feed in the good (note: keep the nozzle fucking HOT) feed in the good, and print on…
1 Like
I just made the mistake of leaving Klipper pressure advance test tower G code in a startup script. 
After 20mm the layers went downhill fast.
2 Likes
yeah… there is a “slight” amount of ghosting… but IDK… printing at 100mm/s perfectly usable and purdy…
5 Likes
Suppose ya need a washer between the gear and the body.
1 Like
Man I tried every damn washer I had and even some tiny lock washers. There was zero clearance before that gear ground so I couldn’t fit anything nicely. I tried shaving down a few things and finally gave up and ordered proper extruders after banggood refunded these 2.
I’ll be returning the 3rd, still functional one to Amazon before it hits that point.
Now China just needs to get their ship in order.
2 Likes
I’d throw some molybdenum disulfide grease in there to reduce the wear.
Does somebody have a model of the TB 6374 Motor?
5 failed prints yesterday😞
We can only help if you give us information. Pics of the print, settings, materials. The more the info the better.
1 Like
Various reasons. First two didn’t stick to the bed. Second a support was knocked over, I thing the brim was too thin and separated. One had some edge warping on the print, first layer went down fine. I didn’t take pictures. I know the things to try but I always get random problems from one print to the next. Frustrating. If I had the same problem over and over and fixed it and then could print successfully it would be great but for some reason I have random issues all the time.
1 Like