AMX3d PTFE Teflon Bowden Tube for 1.75 Filament (2.0mm ID/4.0mm OD) – White Connector Tubing for 3D Printer - 1.5 Meters

ID is not on center to the OD. Does not work for the purpose of feeding filament from extruder to hot end.

Completely useless. The interior diameter varies throughout the entire tube leading to clogs. I've cut it into pieces, but the diameter varies so much throughout that even finding a good 30mm out of the entire 2 meters was a frustrating task.Whats with all the crap products for 3d printing flooding amazon lately? There used to be such better consistency with products.

I was excited to get the tubing as mine is getting pretty chewed up by the connectors that hold it into the hot end and I'm worrying it's going to break soon and get stuck but when I put this tube on I couldn't get filament into it as easily as normal. I eventually wiggled it and shoved harder and it slid further in and I realized I had gotten the filament in it just was such a tight fit it didn't go anywhere. This was the brand new end not an end I cut or anything. I then tried carefully cutting the end off with a razor to see if it just curled at the end or something and it still bound and got worse the more I slid in indicating to me its binding throughout the whole thing and adding more just has more surface area for friction.

Unfortunately while most of this ptfe tubing was good. There was a deformity 1/3rd way into a long section of tubing i had cut to length for my delta printer. Thankfully I purchased this length as i was planning on having a little over half leftover for any future projects so i was able to get a good piece out of that half to use immediately. Just be sure to check any lengths you cut that filament actually can go through your tube all the way without getting stuck. Easier to find out before you install it and wrap all your cables around the tube only to find out it jams halfway due to said deformity.The o/d of the affected area did not show any visible signs of damage. But closer inspection shows the I/D has a partial blockage left from the manufacturing process. Unfortunately that blockage will prevent filament from passing. I will be seeking a replacement from manufacturer.

I'm giving this a neutral rating because it is what it says it is, but doesn't work well with my E3D V6 hotend. It's supposed to be an OD of 4mm and ID of 2mm but It seems to be 4.1 and 1.9. As a result the fit was very tight and I ended with lots of clogs and no successful prints. I believe the issue occurs at the entrance to the heat break. The heat break has a smaller ID and when I removed the tube I could see a clear ridge had formed where the tube was bunched instead of seating within the heat break.This might work with other hot ends, but not the V6. I kept the tube because it was my mistake for not doing better research.

Hole was centered for me, unlike some negative reviews.Got my F410 printer back in action, with enough material for another. Much better than the $30 tube from OEM.For the F410 specifically, it uses jam nuts threaded on the tube, to make these work, I just had to shave a tad of the tube down on the ends to get the nuts to thread, then it's good to go.

The piece I received had several crimps. It was coiled correctly in a bag, so the crimps occurred BEFORE packing. Very slack quality control. I managed to cut a piece the length I really needed, barely, with a mild crimp in it, that seems to work. Nonetheless, I have to wonder if the crimp in the piece I managed to salvage is ultimately going to cause a problem. Therefore, I need to replace it.The rest of the length is trash. I can't force 1.75mm PLA through the crimp spots.In summary: Damaged by crimping even though perfectly packaged.

Per the description the OD is 4mm and the ID is 2mm. Filament that measures just under 1.75mm will not fit in either side. I could barely force it in a couple inches before it jammed. This was the blue tubing , maybe the other sizes are better. I have some blue capricorn tubing and the same filament fits perfectly in it. So my hope that this much less expensive blue tubing would work well did not pan out.

Good quality item. Width is as described, allowing less wiggle room for the filament making the extruder more precise.

Produit de qualité, bien emballé et respecte ses spécificités.