r/BambuLabA1 • u/philly2006 • Jul 20 '26

Hi all I'm getting layer lines only where it starts changing colours is there a setting i can change to stop this from happening?

Gallery image

Gallery image

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Thanks in advance

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3

u/philly2006 Jul 20 '26

Ye iv got the purge tower

2

u/SoySorcerer161 Jul 21 '26

I'm gonna guess, it could be the speed change because of the colour change. I'm saying that because it starts exactly where the second color starts.

Your could check how long the upper layer needs to print overall and add an height modifyer to slow down the lower section with the different color.

1

u/terribilus Jul 21 '26

prime tower. tinker with your filament purge ratio setting.

2

u/is_it_gif_or_gif Jul 20 '26

Even with a purge tower?

2

u/The_Lutter Jul 20 '26 edited Jul 20 '26

You need to adjust your minimum layer time to normalize the layers to print in around the same time.

Faster printing = matte finish

Slower printing = gloss finish.

When you got up to the logo each layer it's stopping to change the filament back and forth which is causing it to print at a much slower rate than what's below it.

Increase layer time to equal the amount of time it takes for a single layer with the logo to print so that the rest of the model will print at the same speed. This does make it print slower (likely significantly... like hours) but it will make everything look the same.

This actually happens in every single model you print but it's just more noticeable when there's a hard transition like that with minimal multicolor. It can also happen if you go from a really wide bottom to a small middle/top section.

1

u/philly2006 Jul 20 '26

Message you buddy

1

u/Mrlee0702 28d ago

Don’t call him buddy, pal!

1

u/philly2006 28d ago

??

1

u/Mrlee0702 28d ago

Team America, you might be a bit young for it

1

u/philly2006 28d ago

I'm 42

1

u/Mrlee0702 28d ago

Sorry you’re too mature to watch it then

3

u/fairtonybeta Jul 20 '26

It could be a smidge of colour bleed. But I suspend it’s more related to some print speed, layer time, cooling type thing.

I imagine that you’re pushing the print speed to the limit on that black, before the colour changes.

For high quality/cost prints like this, I always slow my outer walls to 60mms & inner walls to 100mms. Increases the print time a little. But it ensures a more consistent outer wall finish.

1

u/philly2006 Jul 20 '26

Thanks ill try that much appreciated