prusa3d / PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
https://www.prusa3d.com/prusaslicer/
GNU Affero General Public License v3.0
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Slowdown over bridges #13426

Open IsaiahJoy1 opened 2 months ago

IsaiahJoy1 commented 2 months ago

Is your feature request related to a problem? Please describe. When printing PEGT, bridges fail due to the layer placed on top of it. I have to slow down the entire print in order to not brake the bridge.

Describe the solution you'd like I'd like to see the bridging options that Cura offers, 3 customizable layers of bridging. However, a simpler solution is adding a second layer to bridges or being able to slow the entire layer if the previous contains a bridge.

Additional context Given that not all materials make good bridges, having a way to build up a bridge over multiple layers would extent the capabilities of the printer without sacrificing speed.

Jan-Soustruznik commented 2 months ago

Hello, @IsaiahJoy1 could you share your project file(3MF), where described problem is located, please?

IsaiahJoy1 commented 2 months ago

test ponti.3mf.docx

IsaiahJoy1 commented 2 months ago

Hello @Jan-Soustruznik , I've up loaded one of the test prints. I can get the bridge do well, but if I want to print the test at a regular speed the bridge gets destroyed by the layer on top of it. I know PETG isn't the best for bridging, but I've gotten grate results in Cura by utilizing three layer bridging functions to slow down when printing over bridges. At the end off the day, it would be nice to not have to slow down the entire print just because it contains a bridge or have to manually slow it down right above a bridge.

BrickPrototype commented 1 month ago

Hi @IsaiahJoy1,

Forgive me if you've already tried this or if I misunderstand.

I thought that the Dynamic Overhang Speed setting was meant to help with cases such as this.

image

IsaiahJoy1 commented 1 month ago

Hello @BrickPrototype, The Dynamic Overhang Speed setting helps with the initial layer of a bridge, but dose not effect the layer on top of it. The layer on top of a bridge is printed a full speed witch can cause the bridge to bake under the pressure/speed. I'd like an option to slow down over bridges. image image