Seams when printing with nylon

Bambu Lab X1 Series General discussions
1

Hey everyone.

I am printing a cylindrical object use nylon PA6-12 blend, no fiber reinforcement.
I’ve gotten all the setting dialed in and prints are coming out great with the exceptions of seams. No matter what I try I get big seams.

Using scarf joint makes the problem worse. Mostly I’ve experimented with retraction length and speed with no noticeable improvement. Same with print temp.

I haven’t iterated through all the settings under Quality-Seam yet but before I try a billion permutations, I’m hoping someone here has been through this and found a fix. Moving from aligned to random placement is no help, it just gives the part giant zits instead of a huge scar. This is a mechanical part and I need to get closer to design intent. Thanks for any help. BTW I have no problem with seams printing with anything other than Nylon and Ive tried five different brands of non-fiber nylon. All the same results.

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2

Hi. Did you ever figure this out? I’m printing with Atomic Filament CF Nylon (Nuclear Nylon), and seeing issues with the seams. Basically wherever there is a seam, the nylon gets clumpy in that spot. I’m using aligned at the moment for the seam position, but also about to give the scarf joint feature a try.

3

Try a random seam , which splits the seam lines to individual layers around the print ,it can still be a little clumpy but better than a whole line , setting in studio