Cura: Different wall and infill speeds on the first layer

[riodoro1]

Application Version
3.2.0 beta

Platform
macOS

It would be nice to specify different speeds for different moves during the first layer. I often find myself reducing the initial layer speed to very low values in order to better stick the fine details and later during print I increase the feed rate after they are printed so that the infill on large footprint parts does not take forever, then I need to remember to reduce the feed rate after the first layer so that the print does not fail. If I could configure let's say "initial layer wall speed" 10mm/s and "initial layer infill speed" 30mm/s the print time would be reduced and no supervision would be required.

[fieldOfView]

There is no infill on the first layer, at least not unless you have specified to print 0 bottom layers.

[riodoro1]

@fieldOfView I mean of course the solid infill on the first layer, does it have a special name?

[smartavionics]

Hi, I have already use exactly what you are asking for and have already submitted PRs so that it could be incorporated into mainstream Cura but it was rejected. See https://github.com/Ultimaker/Cura/pull/2356. It works really well and I use that capability on every job I print so I really do wish they would reconsider it.

[ChrisRiddell]

I really like this and can see how it would really help with PETG.

[smartavionics]

It works excellently with PETG, on my first layer I use 20 mm/s for walls and 40 mm/s for the skin and get perfect adhesion.

[Ghostkeeper]

We need to have the collision resolved with the functionality of the "Initial Layer Speed" feature though. Basically this comment: https://github.com/Ultimaker/Cura/pull/2356#issuecomment-329495087

What do you think would be the best solution to allow Initial Layer Speed to keep working without introducing too many dials to turn?