Inexpensive dryers for PET/Nylon

Bolo556

It looks like these two materials have a 85C drying requirement according to the Bambu wiki.

Do they need to be dried at that temp or can I run them longer at 55C?

If they do need 85C, does anyone have a suggestion for a sub $100 dryer that can do the job?

JohnSmith

I attemped to dry nylon at 55⁰c, I figured it would take far longer at lower tempatures so I left it at 55⁰c for 80hrs. The nylon was still wet after 80hrs at 55⁰c. I then baked the same roll at 170⁰F for 15hrs and it printed fine. I just used an oven and aired it out really well before cooking anything in it.

FluffyUnicorn

The Sunlu S2 has a setting for nylon, but the dryer only goes up to 70⁰. I've never dried nylon myself.

It's a good dryer though and they've come down quite a bit in price. Amazon has it for $45.

Kukitan

Get a food dehydrator or an air fryer. They work great and get more than hot enough. Check amazon and you can find good ones under 80 bucks. Dont remember which one I got but I can find out if you need to. I use mine for annealing too and it works splendid.

MooringGrey

I have been really enjoying the PolyMaker Polydryer. It is both an active dry box and a passive dry storage box in one setup. Its max setting (which I've measured equates to 70 C) has worked well for Bambu PET-CF. I usually dry it for at least 24 hours before I start printing. Haven't tested it for nylon. It is $80 so not the cheapest but also not the most expensive option out there.