Limit printing speed

[vovodroid]

In addition to volumetric speed limit this PR adds also feedrate printing limit. It allows more option for print speed tuning.

[thisiskeithb]

It allows more option for print speed tuning.

I’m not sure I follow. How would limiting the print speed help?

I would recommend this remain a slicer-controlled feature set via print profiles.

[vovodroid]

How would limiting the print speed help?

In the same way as limiting volumetric flow helps. For the given flow speed could greatly vary with extrusion width/layer height affecting quality.

Sure both could be controlled by slicer but it could be handy for real time printing adjusting.

[dbuezas]

I actually miss this! The printer gets loud at high speeds and I wish I could slow it down while I do something else in the room. I would use the speed %, but it also slows down travel and I get stringing

[thinkyhead]

I actually miss this! The printer gets loud at high speeds and I wish I could slow it down while I do something else in the room. I would use the speed %, but it also slows down travel and I get stringing

It might be possible to set a limit on the E axis speed to achieve this.

[vovodroid]

It might be possible to set a limit on the E axis speed to achieve this.

Not really, as the same E speed could results in different printing speed.

[dbuezas]

Specifically for my use case, maybe it would be best for me to make a PR with an option to make the feed rate percentage only affect moves with extrusion (except (un)retractions.
Sorry for the pr invasion

[vovodroid]

Sorry for the pr invasion

You are welcome!))

option to make the feed rate percentage only affect moves with extrusion

I tool a look on code - It seems to be possible, but demands some changes in several functions, as applying percent to speed is done on high level, where E distance is still not accessible.