Reduce print temperatures for short layer times.

[Finnitio]

Is there an existing issue for this feature request?

• [X] I have searched the existing issues

Is your feature request related to a problem?

Achieving good printing quality with short layer times.

Which printers will be beneficial to this feature?

All

Describe the solution you'd like

I would like a layer time dependent feature, where depending on the layertime the slicer will automatically reduce the Extruder Temperature.

Describe alternatives you've considered

Alternative feature is to reduce print speed in order to increase layer time but i have realised that below a certain size this change is not sufficient.

Additional context

Relatively short layer times for this part. Print temperatures from left to right: 235 °C, 215 °C and 205 °C. I think the differences in surface quality are evident. This is printed with pet g, but I observed similiar problems with pla.

[vgdh]

It would be nice, but not clear how it affects the surface quality. It can be different from one temperature to another.

[kylek29]

This has been suggested a few times as a way to deal with other surface imperfections like glossy flashing (where longer layer times result in more matte finishes and short result in glossy). I think the discussion was that temperature inertia (the temp probe is lags what the nozzle sees) would be too much of a problem given the short time it would need to ramp down.

I still wouldn't mind having it as an experimental feature for us to toy with and see if it is viable at all.

[ShaneDelmore]

I would love to see something like this in orca someday but if you want to play with these ideas now this postprocessor might help. https://github.com/sb53systems/G-Code-Flow-Temperature-Controller It is not mine, just a neat project I saw.

[Finnitio]

Wow that post processing script is impressive, I will look into it but share a siliar theory.

[github-actions[bot]]

Orca bot: this issue is stale because it has been open for 90 days with no activity.