Its probably best to NEVER use 0 mm on the X/Y distance. You are effectively printing support directly on the model and changing the geometry. Its ok if you are using the support material as the entire support and not just the interface layer, but that’s about it.
OK, what number should you use then?
Mine is set to 0.50 mm as a default and I haven’t had a single print that needed it adjusted.
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My defaults are at 0.35mm. To stop wobble on very thin, tall items I’ve painted organic supports on vertical surfaces with x/y at 0.15mm.
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When I use support material, I set Z distance to 0. Being able to do that is the main point of support material in my opinion. I havn’t done that much yet. But a test print in PLA with PETG as support interface turned out great with 0 Z distance.
I think turning of the prime tower could be the problem. You probably still have some residue of the other material after purging and you need the prime tower to get rid of that. If you print with the mixed materials, it might bond in a strange way.
my default value was 0.35 but I also adjusted it to 0.5mm which works much much better. Are you using bb studio or another slicer, weird that it comes w different preset values if you do
using Bambu studio latest version
I didn’t think of that. Maybe try again and use ABS for support material.
I modified it to be my default.
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I looked at dehydrators (recommended in this thread) and it seems most of those stop at 70 degrees Celsius.
I’m wondering if maybe an air fryer can’t get down to 80 degrees Celsius? That’s 176 F right?
Using an external temperature controller like the Inkbird you get control the temperature must more accurately and get down to any temp you need. A large convection oven can be used up to over 200celcius and down to room temperature. I use my oven for powder coating motorcycle parts as well as drying filament.
Inkbird ITC-308.
A PID-based controller would be a better choice than that model.
Convection ovens work well, but you should shield the filament from the heating elements as the infrared will toast the surface. Aluminum foil works fine.
70 will work, but will take MUCH longer. See this video:
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Look for the Graef DA2042. I think it has a different name in the states. I have read only the best using it as a filament dryer.
Maybe this?
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That looks like exactly the same dryer by looks and specifications 
In Germany it is quite a bit cheaper (~60$) but I think it is still a good deal. In german Amazon every second rating is about using it for filament drying and with high satisfaction at that.
Yesterday I decided to repurpose one of my eSun eBoxes. Using a 24V 100W cabinet heater from aliexpress and testing it this morning it reaches 90C quite easily since it such a small space. I’ll make a controller for it later to cap it at 85C.
PPA likes to dry at 90+, no need to cap at 85
guarda che anche 70° va benissimo!!!
Non bisogna prendere tutte le indicazioni alla lettere, un pò di intraprendenza 