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knightcase

Adhesion problems when printing with Taulman Nylon 680

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I am working on a project which requires printing with food safe Nylon. I am using Taulman Nylon 680. I have a Ultimaker 2 + Extended printer. I have tried multiple configurations and have found that my best prints results from using .2 mm layer, nozzle temp of 252 C, retraction disabled, print speeds of 40 to 50 mm/s and no fan. For the small parts, they are printing fine and I have had limited success on larger parts at partial fills (normally 20 to 40 %) My problem is occurs on large parts (i.e. a 75 mm diameter disc 8 mm thick) when using 100% fill and I can't find a configuration that keeps the Nylon adhering to the print bed. I have tried print bed temps from 65 C to 80 C. I have tried Kapton tape, glue and Kapton tape and glue combined but none of this is working. I’ve seen some posts on the internet recommending anything from sanding the build plate to using a piece of Poplar wood instead of the normal build plate but before I do anything else, I thought I would reach out to this forum to see if anyone has advise/recommendations. Any direction/support anyone can offer me on this issue would be greatly appreciated.

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Hi and welcome!

Sorry my answer won't help much. For food safe stuff I use Greentec Pla that holds up to 110 and has EU foodsafe certification. For this material I use a paper towel with window washer and a couple puffs of hairspray and I clean the glass with it before heating the bed.

Probably someone has some nylon experience, mine is limited to um nylon that works well with a raft as base (and worked also nice for me with hairspray applied with window washer).

Edited by Guest

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I have not tried nylon 680, but I've tried all the other taulman nylons and I have good results with glass bed at 65 degrees with a couple of layers of gluestick. I also tried with garolite, but that actually had way too much adhesion it was almost impossible to remove the prints. Another nice solution was wolfbite nitro although that's not that cheap

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Thanks neotko and ohms. Talked to Taulman and they recommended reducing the fill to somewhere in the order of 60% as any higher does not add strength. That works fine for me. They also recommended using a HT print bed from Geckotek3d.com. Having said that, I see Ultimate has Advanced printing add-on for my machine which may help as well so probably going check that out first.

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