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SoftFever / OrcaSlicer

G-code generator for 3D printers (Bambu, Prusa, Voron, VzBot, RatRig, Creality, etc.)
https://discord.gg/P4VE9UY9gJ
GNU Affero General Public License v3.0
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Slow down 1st layer above bridge #3847

Open AndreySemjonov opened 5 months ago

AndreySemjonov commented 5 months ago

Would like to have option to slow down 1st layer above bridge to make better contact between bridge and next layer. If I have fast printing speed (200mm/s+) than I think this affect next layer quality and how bridge attaches to next layer. Same function as Cura have - Bridge (Second/Third) skin speed (density, flow).

Tianziegler commented 4 months ago

i would also be happy to have such a feature when printing a bridge it looks fine but as soon as the second layer gets printed the bridge starts to sag by a lot. Printing rPet at 260°C with a 0.5mm nozzle. Bridge speed 15mm/s and internal solid infill at 400mm/s. Would be good to be able to print two layer bridges for long distances or reduce the speed for the first layer ontop of the bridge and also be able to set a fan speed for that layer.

aranadam commented 1 month ago

Please add this feature!!! So often my layer just on top of bridges causes the bridge to sag even when it was perfect.. Changing infill speed causes too long of a print vs what I expect wouldnt take much longer to do a single layer after bridging at bridge speed.

Rodamyot commented 3 weeks ago

I'd love to have this to. Sure I can do multiple layer seting and change speed but the goal in a slicer is to be able to identify trouble in printing parts and solve it. the surface over bridge is so so and speed printing or even normal speed printing need a different parameter to compensate for infill over bridge sirface, like more flow extrusion and slowing speed.

wbagnall commented 3 weeks ago

I second this. An above-bridge speed setting is crucial for bridge quality. OrcaSlicer is unusable for bridging without this feature.

GabrieleCzz commented 2 weeks ago

I also would love this feature! I made some tests of bridging and one of them was comparing slow speed on top of the bridge w.r.t. normal speed (in both cases the bridge speed was slow). The difference was pretty noticeable! So, to have good bridges without reducing overall speed (or make manual modifications) it's really necessary to have this feature at least on the first layer above the bridge (maybe also on the second one).