3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io
There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml
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If you need an easy way to host pictures, https://catbox.moe/ may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is 
Moderation policy: Light, mostly invisible
I have every setting turned all the way up speed/accel/jerk is only limited by the power limits on the steppers. In the firmware speed is set at 300mms same with on prusa slicer. I just added zeros to the accel and jerk both in firmware and in the slicer. It's an ender 3 with an skr V2 Rev b board and a generic 2 into 1 hotend.
I'm not a huge fan of the way the documentation reccomends you test for the ringing. They basically change the tune +x amount every layer and you pick the best looking layer. Thus you know what cancelation frequency works. This is subjective. I prefer the klipper style where you actually measure the ringing in the print and enter the length of x rings per x mm over y speed.