Is Brim broken again

[nssorensen 2]

I never really liked the Brim functionality because removing Brim's was always difficult and left residuals that was difficult to "clean off".

When Cura 5.4 was released one of the improvements was indeed "fixing" Brims and when I tried it it actually worked really well and my brim came off easily and clean.

I'm now at Cure 5.6 and when I print with brim's it's back to pre-5.4  (I did not try Brim's with 5.5)

I can't easily pull of brims - even with pliers it's difficult and the result is ugly.

Has anyone noticed the same thing? Is this a regression or could I be doing something wrong? I haven't changed any Cura settings between 5.4 and now and of course Smart Brim is enabled.

My printer is a Ultimaker 2+  

[Slashee_the_Cow 491]

I don't use brims that much, so I'm not exactly the biggest sample size, but I haven't noticed any changes. If you could post a .3mf file (in Cura, get it ready to print then go to File > Save Project) and the gcode file you get when you slice it yourself, then us boffins lurking around here instead of meaningfully contributing to society could have a look to see if anything is amiss.

[nssorensen 2]

Here is the 3mf file.

 

UM2_2x2x6_with_magnets_and_tabs.3mf

[Slashee_the_Cow 491]

That 3mf file only contains the model, not the print settings. Did you set it up like you were about to print it before you saved it? And as I said, if you could post a gcode file of one of the prints where the brim has been so hard to remove, that would help (because if I sliced it I might not have the same problem).

[nssorensen 2]

The 3mf file was created from what I printed. I've also attached the g-code this time

UM2_2x2x6_with_magnets_and_tabs.3mf UM2_2x2x6_with_magnets_and_tabs.gcode

[Slashee_the_Cow 491]

Seems to be slicing like a normal brim to me, although this bit in the middle where the two brims converge is going to be pretty strong:

Also looking at your print settings you have Material > Initial Layer Outer Wall Flow set to 110%. That will make it harder to remove that innermost line of brim because the extra filament which is flowing will spread out a bit and settle on the brim, adhering to it.

[nssorensen 2]

Thanks for your feedback.

Material > Initial Layer Outer Wall Flow set to 110% - I never adjust these myself but 110% appear to be default. I'll adjust it and see if it makes any difference.

I did one print with a 0.2mm Brim Distance; perhaps a bit better but nothing major I would say. Currently printing with 0.4 mm Brim Distance then I'll start adjusting Outer Wall Flow.

 

Appreciate that you take the time to help with my 3D printing problems.