Yes PA is nylon and expensive! Nylon does not absorbe moisture at all!
I think there are a couple of significant challenges for many low-end-printer users: having to change to an all metal hotend and trying to enclose open printers. I have a spool of Nylon but havenāt opened it because my printer has neither of those features.
Why am I confused. I have always been under the impression that nylon sucks up water faster than any other filament.
Me too. Everything Iāve seen & read says that moisture is a major issue with Nylon.
When I toured a place where they fabricate plastic whatever on a commercial scale they threw nylon parts into tanks of water when they came out of the machine.
Thatās very interesting. I wonder if they did that to prevent them from warping.
Nylon as at its clear form yes. PA is a blend of NYLON
My understanding is that PA stands for polyamide, which is the scientific name: Nylon is the first brand name for polyamide. Perhaps youāre using a particular brand of PA that doesnāt absorb moisture? If so, which brand would that be?
I found this filament that claims to be much less hygroscopic that others: [U]https://www.3dprintersupplyco.com/products/nylon-filament-pa12-grade-1-75mm-clear[/U]
Filamentum and Fiberology got the best ( personal opinion ) PA filament
I would love to print with such amazing materials. I donāt feel that an ender 3 pro (what does the pro mean ) has the pizzazz to do it.
To print TPU I think you will really need a direct drive hotend. Iām not sure about an all metal hotend.
It certainly seems that a bowden tube is not the best way but people are printing some things with ehat I have.
yeah, but I donāt think theyāre using flex filaments like TPU. I could be wrong. Perhaps Vassilli can confirm or deny.
Iām totally sure he could.
I am sorry because I am writing on a tiny laptop and it cannot connect to my big screen which I depend upon. My eyes are certainly not what they used to be.
At least the TPU I use prints in the same temperature range I print PLA with 190-220Ā°C. I printed on direct drive with PTFE tubing in the heat break. Works fine.
I did not try bowden, but I think with capricorn tubing this should work fine, as the filament cannot go sideways and retraction should be avoided anyway. But this of course depends on the filament used. If the filament is more rough on the outside it could cause to much friction to get though the bowden tubing. Mine is more like a glassy half cooked noodle and as no issues getting pulled though my PTFE filament guide.
You could upgrade it to do so!
Direct drive is the best way to print TPU and other flexible filaments such as TPE or TPC. Manufacturers said that could be print with bowden too. In slower speeds yes.
This is exactly what i do ! I print with glossy and matt ( sanded ) TPU filaments in up to 100mm/sec now!
I will eventually give a try to TPU and my roll of PETG that is collecting dust.