V3 SE uneven corners

Hello, everyone!
I quite like my V3 SE, but I’m having difficulties obtaining good corners, they tend to accumulate plastic and end up looking like seams. I tried different speeds with and w/out acceleration control, and also different accelerantion settings, but the results have been really poor, especially when I need to fit parts together (like box and cover).
I have an old Ender 3 that prints beautifully, but even if I try the same low speeds and settings I dont’t get good results in the V3 SE. To give you an idea, even doubling the design allowances I still can not fit well the prints.
Can you point me to some reference material or video so I can understand better what is going on?
Thank you!

Hello dkostrisch,

Could you upload a couple of photo’s so we can see the problem ?

Cheers.

Hello, Radical_Data!
Yes, I will print and get photos.
Thank you!

Flowrate calibration. I think if you lower the flowrate by 5%-10% will cure this. Retraction distance calibration, I find that the default distance is too small and should be 0.8-1.0mm.

Hello, Bonfireman,
I see. It’s possible.
Present retraction settings are 1.2 mm and 45 mm/s.
I was also using .6 mm walls in a .4 mm nozzle.
I will run experiments with lower flow rates and both .6 and .4 mm walls.
Then I will post the results.
Thank you!