So far, so good. I dried the fresh filament from Bambulab for two days at 120C in a blast oven. It’s great that the heated bed heats so fast, but boy, it takes comparatively forever for the chamber heater to heat the chamber up to 65C. On top of that it does 2 or 3 rounds of bed leveling, far m…

it could be not your fault, might be filament…

Ok, how do you mean? I kind of hope it’s my fault because then I can fix it :slight_smile: I’m trying to dry it in 120 degrees now with warn air oven (wife is not home). Before I just tried a 70 degree filament dryer for a very long time, not the best but I thought it was worth a try. So it can be …

[image] user_2841470356: But maybe a lower speed wouldn’t make it warp more… Now I’m debating if it’s better to crank up the speed or not. A lower speed (and/or lower layer height and/or smaller nozzle diameter) means less heat in = less heat out per layer/time and therefore less warping.

Instead of reducing the speed, my choice is usually decreasing the layer height (but not for CF filaments as they tend to have extrusion issues if layer height is too low). The idea is the same, less heat / slower printing = less warp, but with even more quality benefits :stuck_out_tongue:

Yep. They can even be combined for best effect. These might also be interesting to you if you are on a quest for quality through layer height: [image] Set minimum and maximums for variable layer height? Bambu Studio Hi. No, there isn’t. Despite not having that purpose, …

Hi, I might add some informations. The base is 15 layers = 3mm. The warping starts with the brim after about 10-15 layers. Warping of the base starts to be noticable somewhere between the 30th to the 35th layer. I can try just put the speed to 50% and see if that helps. That will be after I dry it …

Drying it thoroughly is a good idea, but you’ll need to feed it into the printer from a drybox as well (either your own drybox or an AMS HT or the like). Otherwise you’ll likely rapdily reabsorb the moisture you dried out of it. You’ll definitely want to maintain the RH in your drybox below 20%. …

Yes, I use a Sunlu S2 to feed it from. I hope that is good enough for the printing even if it only go up to 70 degree. Thanks for the tip.

I’m also start thinking if there is something I can do to the design just to a sample out. Could the following help and I can afterwards remove the ears? [PSS-CF 3]

My first time printing Bambulab PPS-CF

Bambu Lab H2 Series

EnoTheThracian June 30, 2025, 6:09pm 269

Yep. They can even be combined for best effect.

These might also be interesting to you if you are on a quest for quality through layer height: