I searched but didn’t see much on annealing.
The Bambu filament guide has recommendations for each type of their filament and in another place it says not to use a common oven or microwave but a “blow air”(?) oven. If I remember right the annealing is supposed to add strength and durability to a 3D part.
Anyone annealing and write about the oven they use?
Steve.
I use a convection oven. I also use an oven thermometer so that I don’t exceed the temperature.
I was just investigating this. Going to try to use the SUNLU S4 filament dryer for this — maybe that should be their slogan “SU4 … not just for filament drying anymore!”
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I haven’t done any heat treatment since I got the Sunlu S4. It could work well with the S4. Nice idea!
S4 will only go to 70c and you have to be careful to not place the print in direct contact with the heating points which are hotter (I am thinking of printing little shelves with a high temperature filament). But that handles all the easier filaments (PLA, PETG).
The X1 itself can be used to dry and will reach to 100C in some cases. That range covers all the indicated annealing temperatures, so another idea for light duty.
I use this works fantastically.
https://www.amazon.com.au/dp/B0C5XK6ZT4?psc=1&ref=ppx_yo2ov_dt_b_product_details
Also use it to dry filament, big enough to dry multiple spools at once. Then keep in dry box.
Also make biltong, jerky and dried fruit.
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Im also trying to find annealing solutions. I purchased the X1E which has internal heating and assume I can write a post processing script to keep the internal temperature on for an extended period of time to anneal? Am I correct or not correct? There is no option in the slicer allowing me to do this and no instructions describing how to properly write this. Could someone at Bambu please advise? Or at least recommend the best oven to use?
YMMV but heating filament to dry it releases volatile organics and decomposition products present in the filament besides the water. They deposit on the insides of dryers as well as escaping in any air flows. When drying food, they could volatilize and deposit on the food.
Health effects may not show up for a while giving plenty of time to accumulate exposures.
Anyway, just a heads up. You probably should have separate equipment for drying food and filament.