Siquk Straight Pneumatic Filament Fitting Review

First of all, I didn't use a hose, so I can't comment on that. I saw no reason to replace my stock bowden cable tube, so these are spares only in case I need them in the future. But the clutches are great. I haven't had them for a long time so let's see how they hold up over time. But I noticed an immediate improvement in the stability of my models after replacing the stock hitch on my Ender 3. I've been using the printer almost 24/7 for several days and so far there have been no signs of any…

PC4-M10 fitting and tube work very well but filament always gets stuck in PC4-M6 unless it is perfectly straight like Bowden. The tubes are 2mm in diameter, but the fitting has a slightly larger hex hole than 1.75mm, creating a burr inside for the filament to get stuck in. If the filament doesn't get stuck, the brass will scratch the filament and create thin loops of filament that will build up in the tube. I gave 3 stars because I didn't buy this for M6 fittings but if I needed them I would…

PTFE Tube OD is VERY LITTLE more than 4mm. My calipers adjust the diameter to about 4.15mm, which is enough to keep my printer's 4.1mm thermal break from going through the pipe. The only way to push it through is to push it in with pliers, which of course will damage the tube. After a few minutes of sanding the inside of the thermal break with 3,000 karat sandpaper, I finally managed to get the tube through. BTW, PTFE tubing is great. Supple, strong and long enough that I won't have to buy them